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- April 27, 2011, 04:05:11 AMChina's development of electronic measuring instruments to the high-tech
Electronic measuring instruments in China after 40 years of development, as China's national economy, science education, especially the development of military defense made a great contribution. As the world trend of development of high technology, electronic measuring instruments in China has entered the high-tech development path, especially through the Our level of electronic measuring instruments to the world laid a good foundation. A successful production of microwave and millimeter wave vector network analyzer We have successfully developed known as the With the new system of electronic information systems and the development of new weapons and equipment, occupation and use of limited spectrum resources has become a high-tech development and military development of electronic technology and equipment is an important feature, which make full use of the electromagnetic spectrum in the amplitude, frequency , phase and polarization information is a central feature of modern electronic equipment. The development of modern electronic equipment, they need to get the measured object at the same time the magnitude, phase and group delay characteristics of high-performance vector network analyzer. Phased-array radar, in particular, the universal application of technology,You are not allowed to view links. Register or Login, phase and group delay characteristics of the test becoming more demanding, so a vector network analyzer will be necessary in modern electronic equipment, the key test equipment, test equipment can not be other replace the important tests. Also microwave and millimeter wave active device technology is the increasing popularity of CAD, and CAD is based on the active extract S-parameters of active devices, currently only vector network analyzer capable of simultaneously active devices obtain S-parameters of the CAD design result closer to practical application. In addition, the vector network analyzer has been out of the traditional linear network applications, and in the non-linear, high-power testing and analysis of the network plays an important role. In addition, the vector network analyzer can form the core of the antenna, RCS, high-power, T / R components, such as automatic test system applications so it will be very broad. Needed in order to meet our country's Ministry of Information Industry Institute of Electronics 41 has been successfully developed into a high level of vector network analyzer, the salient features of the instrument are the following aspects: 1. working frequency bandwidth, a scan to complete 45MHz ~ 40GHz wide-band frequency characteristics and phase frequency measurements. 2. High accuracy, the use of error correction technology, greatly reducing the systematic errors on the measurement results, even with non-ideal hardware circuits, but also can get high-precision measurements. 3. A large dynamic range, the vector network analyzer with high sensitivity, amplitude and phase receiver and digital signal processing technology to improve the small signal test sensitivity, expanded dynamic range. 4. High-speed real-time test, the use of embedded high-speed computer technology, will measure the calibration, measurement control, error correction, shows the process control procedures, software and increase the degree of automation and test speed make real-time measurement possible. Ministry of Information Industry Institute of Electronics 41, after years of hard work, developed by the vector network analyzer has been in series and family of more than a dozen models to choose from, including coaxial and waveguide calibration test pieces, including accessories are complete and strong, able to meet the test requirements of users at different levels, the frequency range can be selected within the 0.0003 ~ 110GHz. Made vector network analyzer successful development of vector network analyzer into the design and manufacture the world's advanced level of the ranks of the world after the United States to become the second country to master the technology, products the technological level and variety can be compared with similar foreign products, through to the vector network analyzer, master a wide range of vector network analyzer as the core of the automated measurement techniques and automatic test systems. Second, the master of modulation domain measurement technology, developed modulation domain analyzer Modulation Domain twentieth century testing technology is the emergence of a new testing technology, It is well known with the past, we test the time domain, frequency domain testing as the current A Test is a measure of the input signal changes over time the signal value, is the signal amplitude with time. Frequency domain test is to measure the input signal with the frequency change signal value, is the signal amplitude and frequency. Modulation field test is to measure the input signal frequency changes over time the value of the display of graphical representation generated by the modulation domain, is the signal frequency with time. Modulation Domain testing technology is a new and very important and very big technical difficulty of testing technologies, depending on science and technology and the rapid development of electronic equipment. As you know, the past is that most of the electronic information transfer rate of change information, and now turn to transmit digital information after the information more and more as a digital pulse timing or phase relationship between the means of transmitting out, just use an oscilloscope or a spectrum analyzer that class-based instruments to increase to characterize these digital signals can not meet their needs. Therefore, put forward a new method of digital phase. This method is very suitable for measuring timing signals, phase or frequency coded signal encoded signal. Modulation Domain testing technologies, a large number of test problems is bound to make new contributions. Facts have proved that modulation domain analysis, in more and more applications become an indispensable testing technology, especially in the field of electronic test more of their military significance. Example, with the integrated digital network industry, and Synchronous Optical Network and other new digital communication technology into the mainstream of the telephone system, its high-speed transfer rate using conventional testing methods can no longer accurately measure the transmitted signal; further communication transmission accurate measurement of the shaking is a vital transmission problem. The modulation domain analysis can be two million times / second, 64,000 times the frequency of measurement back to back, so it is today the only direct indication of changes over time shaking technology; again, modulation domain analysis in the military has its own unique application, since it can measure, analyze rapidly changing frequency, time interval or phase relations function, so modulation domain analysis of this signal can be tuned to achieve the best performance of electronic equipment, radar, we can eliminate its blind spots and reduce the negative effect of target motion, the role of radar systems to improve the range and resolution. In addition, the modulation domain analyzer is also very suitable for design of anti-lock braking system, adjustable suspension system, adaptive cruise control, collision avoidance radar, a variety of aerospace and defense systems. In short, the modulation domain analysis can be used to accelerate the design and characterization, such as radar, electronic warfare, surveillance systems, spread spectrum communications, the work and performance characteristics. Union Electronic Equipment Co., Ltd. Nanjing has developed into a 10Hz ~ 2.5GHz modulation domain analyzer to achieve the level of similar foreign products, to fill the gap, as the field of frequency hopping equipment and military equipment to provide electronic a lower than foreign prices 1 / 3 to 1 / 2 testing methods. In order to better meet the testing needs, the next step will continue to develop higher frequency modulation domain analyzer.
Three, VXI bus technology has made significant progress in VXI bus technology of the twentieth century the emergence of a new bus technology. It first appeared in the United States, used U.S. Air Force electronic measuring instruments. VXI VME bus and the GPIB bus will combine to form a new standard, modular instrument platform which can meet the future needs of instrumentation, electronic measurement instruments and systems to make into a new period of development. VXI bus is a new industry standard interface bus, is a completely open, to adapt to multi-vendor equipment products (modules, plug-in) the industry standard. The introduction of this standard for three reasons: First, the requirement to adapt to technological development, the second is the lack of multi-vendor instrument connectivity and the third is the military's needs, and this is the most important aspects. What the military needs? First, the scene of military electronic measuring instruments of war emphasized portability, VXI devices can greatly reduce the size and weight; the second is greatly increased test speed, VXI GPIB speed can increase more than 40 times; third is to test the adaptability of the system, greatly enhanced flexibility; Fourth affordable; five is conducive to give full play to the role of the computer. The new bus standard, applied in the United States after all are enjoying our country, many researchers. After several years of exploration in China has made great progress in a number of areas to achieve a specific application. Such as the University of Electronic Science and Testing Laboratory, Institute of CAD software developed VXI bus test of VXI test platform is a major breakthrough in technology, its main technical indicators: 1. Hardware Environment: Embedded VXI controllers, MXI controller GPIB-VXI converter; a NI PCI-GPIB, AT-GPIB/TNT HP82350/82341 and ES1400 interfaces such as GPIB, as well as printers and UPS, and other necessary peripherals. 2. Software Environment: Windows 98 operating system; supports standard module driver (VISA32). 3. Software features: editable graphical programming environment; customizable virtual panel; wealth of data processing functions; open the external program interface; while managing VXI, GPIB, 1553B, RS232 instruments and modules; easy to use help system . The research results have been applied to Fourth, electronic test equipment to the millimeter-wave advance many civilian and military electronic equipment in the millimeter-wave development, especially in the military field, the development of more quickly. Electronic warfare system is expected to signal the future environment will reach 100 to 2,000,000 pulses / sec, equipment, systems may want to perform billions of instructions, the current handling capacity of integrated circuits can not meet the requirements of military electronic equipment, which will affect the next generation combat electronic warfare systems, this must be the development of high-speed integrated circuits (VHSIC). So the test of integrated circuits from the hundreds of thousands of doors / chip rose to several million gates / chip, and its corresponding significant increase in test difficulty. View of the The microwave / millimeter-wave monolithic integrated circuit (MIMIC) to a substrate to produce the power of broadband or broadband receiver components, which can make the weight less than 25 pounds, smaller than 90 cubic inches, that with the impact acceleration 1000g throwing small broadband smart jamming aircraft and multi-octave phased array interference unit. However, research from a number of years to see, test technology has become a constraint to further development and improvement MIMIC bottleneck. Therefore, we have electronic devices in recent years, attention to the millimeter-wave development. 41 Ministry of Information Industry Development Institute has recently completed AV3615 three millimeters S parameter test and calibration items, together with the host to a three-millimeter-wave amplitude and phase of the exact amount; millimeter-wave expansion of the spectrum analyzer developed by the module with the frequency of high-performance spectrum analyzer with integral system can 9kHz ~ 110GHz frequency spectrum analysis; wave power meter probes together with the host family to achieve a microwave / millimeter-wave power is measured directly. Union Electronic Equipment Co., Ltd. Nanjing New Development completed EE3395 type millimeter-wave frequency counter, the frequency measurement range of 10Hz ~ 110GHz, the product can be widely used in millimeter-wave electronic warfare systems, satellite communication equipment, high-precision radar and radio astronomy and other fields . Five, communication measuring instruments to achieve high levels of communications industry faster than people's imagination, so we must adapt to the communications industries, with the fastest speed development of China's communications electronic measuring instruments. Electronic Instrument Factory, Chengdu forward in recent years, completed the development of wireless paging detector, radio tester, digital microwave communication tester; Ministry of Information Industry Development Institute completed a 41 bit error tester, digital transmission / data communications analysis instrument, VII signaling tester. These products have reached international advanced level in the twentieth century. Six, the rapid development of digital instruments recent years, the rapid development of digital instruments, our ongoing research are also introduced various new digital instruments, such as digital oscilloscopes, digital modulation devices, digital function / arbitrary waveform generator, digital frequency counters and many other products. Four Chuanchuan Jia Electronics Co., Ltd. digital video and audio meter, is the number of hardware functions to software of the electronic measuring instruments, to remove many of the basic measurement functions can also be used long-distance transmission and measurement, measuring 23 and 4 video project audio projects are selected for our broadcasting system, the best equipment. Others, such as in optical communications test, the synthesized signal source side, VXI bus instrument module, the acoustic measurement instrumentation, etc., have developed a number of twentieth century international standard products, but information technology compared to the rapid development, China's electronic measuring instruments must aim at the world technology development, and information technology to make the best suited to the development of electronic measuring instrument products.
Electronic measuring instruments in China after 40 years of development, as China's national economy, science education, especially the development of military defense made a great contribution. As the world trend of development of high technology, electronic measuring instruments in China has entered the high-tech development path, especially through the Our level of electronic measuring instruments to the world laid a good foundation. A successful production of microwave and millimeter wave vector network analyzer We have successfully developed known as the With the new system of electronic information systems and the development of new weapons and equipment, occupation and use of limited spectrum resources has become a high-tech development and military development of electronic technology and equipment is an important feature, which make full use of the electromagnetic spectrum in the amplitude, frequency , phase and polarization information is a central feature of modern electronic equipment. The development of modern electronic equipment, they need to get the measured object at the same time the magnitude, phase and group delay characteristics of high-performance vector network analyzer. Phased-array radar, in particular, the universal application of technology,You are not allowed to view links. Register or Login, phase and group delay characteristics of the test becoming more demanding, so a vector network analyzer will be necessary in modern electronic equipment, the key test equipment, test equipment can not be other replace the important tests. Also microwave and millimeter wave active device technology is the increasing popularity of CAD, and CAD is based on the active extract S-parameters of active devices, currently only vector network analyzer capable of simultaneously active devices obtain S-parameters of the CAD design result closer to practical application. In addition, the vector network analyzer has been out of the traditional linear network applications, and in the non-linear, high-power testing and analysis of the network plays an important role. In addition, the vector network analyzer can form the core of the antenna, RCS, high-power, T / R components, such as automatic test system applications so it will be very broad. Needed in order to meet our country's Ministry of Information Industry Institute of Electronics 41 has been successfully developed into a high level of vector network analyzer, the salient features of the instrument are the following aspects: 1. working frequency bandwidth, a scan to complete 45MHz ~ 40GHz wide-band frequency characteristics and phase frequency measurements. 2. High accuracy, the use of error correction technology, greatly reducing the systematic errors on the measurement results, even with non-ideal hardware circuits, but also can get high-precision measurements. 3. A large dynamic range, the vector network analyzer with high sensitivity, amplitude and phase receiver and digital signal processing technology to improve the small signal test sensitivity, expanded dynamic range. 4. High-speed real-time test, the use of embedded high-speed computer technology, will measure the calibration, measurement control, error correction, shows the process control procedures, software and increase the degree of automation and test speed make real-time measurement possible. Ministry of Information Industry Institute of Electronics 41, after years of hard work, developed by the vector network analyzer has been in series and family of more than a dozen models to choose from, including coaxial and waveguide calibration test pieces, including accessories are complete and strong, able to meet the test requirements of users at different levels, the frequency range can be selected within the 0.0003 ~ 110GHz. Made vector network analyzer successful development of vector network analyzer into the design and manufacture the world's advanced level of the ranks of the world after the United States to become the second country to master the technology, products the technological level and variety can be compared with similar foreign products, through to the vector network analyzer, master a wide range of vector network analyzer as the core of the automated measurement techniques and automatic test systems. Second, the master of modulation domain measurement technology, developed modulation domain analyzer Modulation Domain twentieth century testing technology is the emergence of a new testing technology, It is well known with the past, we test the time domain, frequency domain testing as the current A Test is a measure of the input signal changes over time the signal value, is the signal amplitude with time. Frequency domain test is to measure the input signal with the frequency change signal value, is the signal amplitude and frequency. Modulation field test is to measure the input signal frequency changes over time the value of the display of graphical representation generated by the modulation domain, is the signal frequency with time. Modulation Domain testing technology is a new and very important and very big technical difficulty of testing technologies, depending on science and technology and the rapid development of electronic equipment. As you know, the past is that most of the electronic information transfer rate of change information, and now turn to transmit digital information after the information more and more as a digital pulse timing or phase relationship between the means of transmitting out, just use an oscilloscope or a spectrum analyzer that class-based instruments to increase to characterize these digital signals can not meet their needs. Therefore, put forward a new method of digital phase. This method is very suitable for measuring timing signals, phase or frequency coded signal encoded signal. Modulation Domain testing technologies, a large number of test problems is bound to make new contributions. Facts have proved that modulation domain analysis, in more and more applications become an indispensable testing technology, especially in the field of electronic test more of their military significance. Example, with the integrated digital network industry, and Synchronous Optical Network and other new digital communication technology into the mainstream of the telephone system, its high-speed transfer rate using conventional testing methods can no longer accurately measure the transmitted signal; further communication transmission accurate measurement of the shaking is a vital transmission problem. The modulation domain analysis can be two million times / second, 64,000 times the frequency of measurement back to back, so it is today the only direct indication of changes over time shaking technology; again, modulation domain analysis in the military has its own unique application, since it can measure, analyze rapidly changing frequency, time interval or phase relations function, so modulation domain analysis of this signal can be tuned to achieve the best performance of electronic equipment, radar, we can eliminate its blind spots and reduce the negative effect of target motion, the role of radar systems to improve the range and resolution. In addition, the modulation domain analyzer is also very suitable for design of anti-lock braking system, adjustable suspension system, adaptive cruise control, collision avoidance radar, a variety of aerospace and defense systems. In short, the modulation domain analysis can be used to accelerate the design and characterization, such as radar, electronic warfare, surveillance systems, spread spectrum communications, the work and performance characteristics. Union Electronic Equipment Co., Ltd. Nanjing has developed into a 10Hz ~ 2.5GHz modulation domain analyzer to achieve the level of similar foreign products, to fill the gap, as the field of frequency hopping equipment and military equipment to provide electronic a lower than foreign prices 1 / 3 to 1 / 2 testing methods. In order to better meet the testing needs, the next step will continue to develop higher frequency modulation domain analyzer.
Three, VXI bus technology has made significant progress in VXI bus technology of the twentieth century the emergence of a new bus technology. It first appeared in the United States, used U.S. Air Force electronic measuring instruments. VXI VME bus and the GPIB bus will combine to form a new standard, modular instrument platform which can meet the future needs of instrumentation, electronic measurement instruments and systems to make into a new period of development. VXI bus is a new industry standard interface bus, is a completely open, to adapt to multi-vendor equipment products (modules, plug-in) the industry standard. The introduction of this standard for three reasons: First, the requirement to adapt to technological development, the second is the lack of multi-vendor instrument connectivity and the third is the military's needs, and this is the most important aspects. What the military needs? First, the scene of military electronic measuring instruments of war emphasized portability, VXI devices can greatly reduce the size and weight; the second is greatly increased test speed, VXI GPIB speed can increase more than 40 times; third is to test the adaptability of the system, greatly enhanced flexibility; Fourth affordable; five is conducive to give full play to the role of the computer. The new bus standard, applied in the United States after all are enjoying our country, many researchers. After several years of exploration in China has made great progress in a number of areas to achieve a specific application. Such as the University of Electronic Science and Testing Laboratory, Institute of CAD software developed VXI bus test of VXI test platform is a major breakthrough in technology, its main technical indicators: 1. Hardware Environment: Embedded VXI controllers, MXI controller GPIB-VXI converter; a NI PCI-GPIB, AT-GPIB/TNT HP82350/82341 and ES1400 interfaces such as GPIB, as well as printers and UPS, and other necessary peripherals. 2. Software Environment: Windows 98 operating system; supports standard module driver (VISA32). 3. Software features: editable graphical programming environment; customizable virtual panel; wealth of data processing functions; open the external program interface; while managing VXI, GPIB, 1553B, RS232 instruments and modules; easy to use help system . The research results have been applied to Fourth, electronic test equipment to the millimeter-wave advance many civilian and military electronic equipment in the millimeter-wave development, especially in the military field, the development of more quickly. Electronic warfare system is expected to signal the future environment will reach 100 to 2,000,000 pulses / sec, equipment, systems may want to perform billions of instructions, the current handling capacity of integrated circuits can not meet the requirements of military electronic equipment, which will affect the next generation combat electronic warfare systems, this must be the development of high-speed integrated circuits (VHSIC). So the test of integrated circuits from the hundreds of thousands of doors / chip rose to several million gates / chip, and its corresponding significant increase in test difficulty. View of the The microwave / millimeter-wave monolithic integrated circuit (MIMIC) to a substrate to produce the power of broadband or broadband receiver components, which can make the weight less than 25 pounds, smaller than 90 cubic inches, that with the impact acceleration 1000g throwing small broadband smart jamming aircraft and multi-octave phased array interference unit. However, research from a number of years to see, test technology has become a constraint to further development and improvement MIMIC bottleneck. Therefore, we have electronic devices in recent years, attention to the millimeter-wave development. 41 Ministry of Information Industry Development Institute has recently completed AV3615 three millimeters S parameter test and calibration items, together with the host to a three-millimeter-wave amplitude and phase of the exact amount; millimeter-wave expansion of the spectrum analyzer developed by the module with the frequency of high-performance spectrum analyzer with integral system can 9kHz ~ 110GHz frequency spectrum analysis; wave power meter probes together with the host family to achieve a microwave / millimeter-wave power is measured directly. Union Electronic Equipment Co., Ltd. Nanjing New Development completed EE3395 type millimeter-wave frequency counter, the frequency measurement range of 10Hz ~ 110GHz, the product can be widely used in millimeter-wave electronic warfare systems, satellite communication equipment, high-precision radar and radio astronomy and other fields . Five, communication measuring instruments to achieve high levels of communications industry faster than people's imagination, so we must adapt to the communications industries, with the fastest speed development of China's communications electronic measuring instruments. Electronic Instrument Factory, Chengdu forward in recent years, completed the development of wireless paging detector, radio tester, digital microwave communication tester; Ministry of Information Industry Development Institute completed a 41 bit error tester, digital transmission / data communications analysis instrument, VII signaling tester. These products have reached international advanced level in the twentieth century. Six, the rapid development of digital instruments recent years, the rapid development of digital instruments, our ongoing research are also introduced various new digital instruments, such as digital oscilloscopes, digital modulation devices, digital function / arbitrary waveform generator, digital frequency counters and many other products. Four Chuanchuan Jia Electronics Co., Ltd. digital video and audio meter, is the number of hardware functions to software of the electronic measuring instruments, to remove many of the basic measurement functions can also be used long-distance transmission and measurement, measuring 23 and 4 video project audio projects are selected for our broadcasting system, the best equipment. Others, such as in optical communications test, the synthesized signal source side, VXI bus instrument module, the acoustic measurement instrumentation, etc., have developed a number of twentieth century international standard products, but information technology compared to the rapid development, China's electronic measuring instruments must aim at the world technology development, and information technology to make the best suited to the development of electronic measuring instrument products.