During the welding process, due to the influence of various factors such as workpiece processing error, thermal deformation, positioning error, etc., the welding gun often deviates from the center of the weld, resulting in a decrease in welding quality. In order to ensure the reliability of welding, the position of the weld must be detected in real time, so that the welding gun is always aligned with the center of the weld and the weld is automatically tracked. Since welding is a process......
IntroductionWith the development of economy and the progress of society, people have put forward higher and higher requirements for energy, and finding new energy has become an urgent issue facing mankind. Solar power generation is considered to be clean, safe, extensive and sufficient in resources, which are unmatched by thermal power, hydropower and nuclear power......
As differential silicon capacitance sensors are widely used in various industries, the detection of differential capacitance signals is crucial. This paper proposes a capacitance pressure sensor measurement circuit based on the CAV424 capacitance detection chip as a pre-detection unit. The circuit has good stability, strong anti-interference, and can be effectively compensated by nonlinearity......
In the field of modern science and technology, the status of sensor technology is becoming more and more important. This article mainly discusses the application of 51 single-chip microcomputer in the design of intelligent pressure sensor and its impact on its development. The focus of the study is the stability of the intelligent pressure sensor itself, combining 51 single-chip microcomputer and pressure sensor, and the anti-interference of the pressure sensor itself......
This paper introduces the design of a miniaturized and rugged universal automotive pressure sensor suitable for mass production by using silicon piezoresistive elements manufactured by MEMS (micro electro mechanical systems) technology and intelligent integrated signal conditioning technology. The zero and full scale of the sensor are adjusted by intelligent conditioning technology......
Abstract: Based on STM32, the current type, voltage type and digital IO type sensor interface module is realized; the software design of the interface module is carried out, and the detailed firmware code design is explained. In addition to the traditional serial port, an Ethernet interface is provided, and the UDP protocol is embedded to provide a convenient interface for later development. Keywords: signal interface; sensor interface module; UDP ......
Abstract: A temperature differential flow sensor based on the thermodynamic heat absorption law is designed. After the relationship between flow and temperature difference is determined through calibration test, the flow can be calculated by the single-chip microcomputer MSP430F2132 by simply measuring the temperature before and after the heating device. The wireless module is used to realize short-distance wireless transmission of data. While ensuring the measurement......
Abstract: This paper introduces the design of intelligent node based on TMS320F2812 and ADS8364. This node can not only collect data, but also realize threshold alarm, digital filtering, FFT transformation and other functions. The working principle, hardware design and software design of this design are introduced in detail. Keywords: DSP; CAN bus; intelligent......
Abstract: The classic LEACH routing algorithm for wireless sensor networks is analyzed and an improved algorithm is proposed. Through simulation, the improved LEACH algorithm improves the energy efficiency of sensor networks and prolongs the working life of the system. Keywords: wireless sensor; routing protocol; LEACH0 Introduction Sensor networks are usually covered......
Introduction Micromechanical accelerometer is a typical microelectromechanical system (MEMS), which has been widely used in aviation, aerospace, automobile and other fields. However, the research and application of wireless input devices based on MEMS micro-accelerometer technology are still not much....
Introduction Temperature sensors are needed in various production sites to detect temperature, and temperature is one of the most commonly used control parameters. However, in some dangerous situations or when objects are moving, wired temperature sensors are not only complicated to wire, but also easy to cause the cable to fall off, affecting the reliability of the data. In recent years, Bluetooth technology......
Introduction The wind sensors in automatic weather stations in Finland and other countries mostly use heating devices with a power of ≤4W. Only the temperature index is considered. When the temperature is ≤4℃, the automatic weather station automatically starts the heating device to heat the wind sensor and melt the rime and rime that freeze the wind sensor. However, in the operation of pilot stations in my country, ......
The WK-4 electric shovel has a fault in which the AC contactor KM3 and KM4 coils are burned due to misoperation. The partial control wiring diagram of the electric shovel is shown in the figure above. According to the operating procedures of the electric shovel, the conversion switch SA2 should be operated to the start position first, and then SA3 should be operated. After operating SA2 to the start position, its contacts ②① are connected, and the contactor KM2 is excited......
With the development of laptop computers, personal digital agents (PDAs) and 3G communications, people are using information technology to communicate and exchange space and flexibility has been continuously expanded. Wireless networks, especially 3G networks, have become the new favorite of technological development and social applications. Various types of mobile data terminals and multimedia......
As automotive applications become increasingly complex and increasingly electronically driven, it is no surprise that more innovations and specialized technologies are being applied to this area. One unique solution that we are increasingly seeing in the automotive environment is ambient light sensing throughout the vehicle interior......
Because capacitive technology is affected by environmental noise and other factors, the system may not respond to finger touches or generate false touches. If developers do not debug the sensor well, accuracy and reliability will be severely reduced. Understand the working principle of capacitive sensors and design a self-compensating noise......
1. Requirements of the textile industry for control systems The internationalization process of my country's textile industry is accelerating, but there is still a certain gap with the international level. With the improvement of automation, the continuous improvement of cotton yarn quality competition has put forward more requirements for cotton spinning equipment: increasing production while ensuring stability, improving and......
The intake manifold pressure sensor is used to monitor the pressure of the intake manifold and input the signal into the ECM through the sensor harness. The ECM controls the injection amount and injection timing based on this signal. The intake manifold pressure sensor circuit is shown in Figure 1. If the signal voltage of the intake pressure sensor is too high at the 45 terminal of the engine harness......
Background Many car manufacturers have devised a clever way to save fuel in their cars, using a new concept called the "Start/Stop" system. This system automatically shuts down the engine when the car is at a standstill or in neutral, and restarts it as soon as the driver presses the clutch pedal again. Automatic......
1. Supported chip models Support the most classic and market-leading ATMEL company's AT89C51, C52, C55 and the latest S51, S52; AT89C1051, 2051, 4051 and other chips. The 51 single-chip computer learning network has specially improved the circuit and appearance, which is currently the most economical, beautiful, convenient and practical small 5 ......
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