In the industrialized production of automation technology and civil electronic weighing equipment, most of the basic pulse signal weighing machines are used. The digital and analog weighing machines used at this stage are due to the pulse signal caused by the basic principle of the strain force transformation of the resistor. In use, the pulse signal must be converted into an analog analog working voltage or an analog analog current quantity according to the intelligent transmitter. A lot of work experience has been accumulated in the aspects of manufacturing and processing technology, power circuit compensation and adjustment, pulse modulation, etc., so the application is more common. However, the output data signal is small, the transmission distance is short, and the anti-interference is poor. Each compensation item is matched with t-test. The power circuit compensation and adjustment processing technology is complicated, not only time-consuming, but also low compensation precision; the weighing display information control instrument is complicated, The congenital shortcomings such as inconvenient installation and adjustment have decided the development trend of digital-analog weighing machines to digital display orientation. Only the digital conversion module that is parasitic inside the strain force bridge circuit changes the pulse signal into an analog signal. Therefore, there is a digital conversion method. One is to convert the output data signal of the digital-analog weighing machine into an analog signal output according to the data intelligent transmitter installed in it, which is generally called an intelligent weighing machine. Namely: digital analog weighing machine + data intelligent transmitter u003d digital display weighing machine. The digital display sensor uses an integrated A/D conversion power supply circuit, intelligent data signal transmission and digital filtering technology. The data signal transmission distance of the sensor is relatively long, and the anti-interference is strong. In addition, the sensor itself is also an excellent The shielding cover, these two characteristics alone determine the advantages of its anti-interference, and improve the reliability of the sensor to a very large level. The digital display weighing machine converts the traditional sensor pulse signal into a high-precision RS485 analog signal, which can be used for industrial production automatic control system without calibration. It can be very good for immediate data transmission with PLC or intelligent equipment The load-bearing force information content of the applicator is converted into an analog signal. The weighing tension pressure sensor is called the cardiovascular of the weighing equipment, and its characteristics determine the accuracy and reliability of the weighing equipment to a very large level. When designing a weighing device, it is often difficult to use sensors. How to use good weighing and pulling pressure sensor weighing machine is actually a kind of equipment that changes the quality data signal into an electronic signal output that can be accurately measured. When using a sensor, you must first consider the specific office environment where the sensor is located. This is particularly important for proper use of the sensor. It is related to whether the sensor can work normally, other safety factors and service life, and even the use of all electronic weighing instruments. Credibility and reliability. So how to choose a more powerful weighing and pulling pressure sensor? Below I will give everyone a detailed introduction. Weighing and pulling pressure sensors are widely used in various metal material foil resistance strain gauges with resistance value of 350Ω, so as to make various weighing equipment, which have comprehensive high precision, good reliability, and display information in specific applications. Convenience and other features. The natural environment of the application of the weighing and pulling pressure sensor: the weighing and pulling pressure sensor is actually an electronic signal output device that converts the quality data signal into an accurate measurement. When using a sensor, we must first consider the specific office environment where the sensor is located. This is particularly important for the proper use of the sensor. It is related to whether the sensor can work normally, other safety and service life, and even the availability of all electronic weighing instruments. Reliability and safety factor. Under normal circumstances, the high temperature natural environment causes problems such as melting of coating materials, spot welding, and structural transformation of polyurethane elastomer thermal stress on the sensor; smoke, dampness and cold cause short-circuit failure of the sensor; in the natural environment with high corrosion Down can cause damage to the polyurethane elastomer of the sensor or cause a short circuit fault condition; the magnetic field will affect the output of the sensor. Under relative environmental factors, you must choose a matching force weighing machine before you can consider the necessary weighing regulations.
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