Design of non contact shaft angular displacement measurement system based on tms320x2812 DSP chip

A1 introduction High precision rotation angle measurement is widely used in precision machining, aerospace, military and other fields. The methods of measuring angle and angular displacement include: level tube inclinometer, circular grating, resistance strain sensor, inductance sensor, capacitance sensor, photoelectric coding sensor and magnetoresistance sensor. At present, the high-precision shaft angle measurement system based on […]

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Design and application analysis of digital lock in amplifier based on DSP Technology

1. Introduction Compared with analog lock-in amplifier, digital lock-in amplifier has the characteristics of stability, high precision and obvious advantages in frequency scanning. Based on TDLAS (tunable diode laser absorption) Spectrum technology uses the frequency modulation technology to inject sine wave current into the laser diode for frequency modulation, uses the frequency doubling signal of […]

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Design of frequency characteristic measurement system based on PLD and MCU

The measurement of frequency characteristic is realized by frequency sweep. The sweep signal is generated by AD9851, which can produce sine wave with pure spectrum, wide frequency range and high stability. The frequency response characteristics are measured by diode negative feedback bridge limiting amplifier circuit and RMS sampling circuit. Finally, the amplitude frequency characteristics and […]

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Design of electronic police capture delay measurement system based on at89s5l MCU and radar technology

1. Introduction Image based electronic police system is an effective means of traffic supervision. Its external hardware equipment usually includes four parts: front-end sensing equipment, controller, capture camera equipment and back-end transmission equipment. According to the different front-end sensing equipment, image-based electronic police system can be divided into coil type, radar type and infrared type. […]

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MVG launched SG 3000m multi probe measurement system for full size vehicle antenna measurement

MVG, a wireless connection testing expert, recently announced the launch of a multi probe measurement system sg3000m. The sg3000m is designed for full-scale vehicle antenna measurement and OTA testing, and can upgrade the existing anechoic chamber to antenna measurement and OTA test equipment for interconnected vehicles. MVGSG3000M In 5g technology, cellular based vehicle to everything […]

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One paper analysis of multi sensor measurement system

Application of industrial control sensor Advances in the multi-sensor platform combine the best features of visual and touch probe inspection to achieve maximum accuracy and speed. With the aggravation of global competitive market, the demand for efficiency is more important than ever before. In order to maintain profitability, the company needs to meet market demand […]

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Design of speed measurement system for hydraulic turbine based on FPGA chip

With the development of industrial production and science and technology, the automation level of large water turbine units is also improving. Once these equipments break down, it will cause great threat to people’s life and property. Therefore, it is of great significance to monitor its operation state and find fault symptoms in time. The emergence […]

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