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 Weighing force dynamic torque transducer

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Advantages and development trend of digital load cell

2020-08-10 14:12:38
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In the industrial production of automation technology and civil electronic weighing equipment, the vast majority of applications of basic pulse signal The weighing sensor At present, digital analog weighing is used again sensor Because of the pulse signal caused by the basic principle of strain force transformation of resistor, the pulse signal must be used according to the intelligence Transmitter It is converted into simulated working voltage or simulated current. In the production and manufacturing process, power supply circuit compensation and regulation, pulse modulation and other aspects have accumulated a lot of work experience, so the application is more common. However, the output data signal is small, the transmission distance is short, and the anti-interference performance is poor. The new compensation items are paired with t-test, and the compensation and adjustment process of power circuit are complicated, which not only takes time and effort, but also has low compensation precision; Weighing display information control instruments are complex, installation and adjustment are not convenient and other congenital defects, which determine the development trend of digital analog weighing sensor to digital display. Only the digital conversion module parasitic outside the strain force bridge circuit can change pulse signal into analog signal.

Therefore, the emergence of digital conversion, one is the digital analog load cell output data signal, according to the data installed in its internal intelligent transmitter, into analog signal output, generally known as intelligent weighing sensor. That is: digital analog load cell + data intelligent transmitter = digital display load cell.

The digital display inductor adopts integrated a / D conversion power circuit, intelligent data signal transmission and digital filtering technology. The data signal transmission distance of the sensor is far, and the anti-interference performance is strong. In addition, the sensor itself is an excellent shielding cover. Only these two characteristics determine the advantages of its anti-interference and improve the reliability of the sensor at a very large level. The digital display weighing sensor transforms the traditional sensor pulse signal into high-precision RS485 analog signal, which can be used in industrial production automatic control system, and can transfer data with PLC immediately or convert the load information content of intelligent instrument and equipment into analog signal immediately.

 Nantong load cell manufacturer

Weighing Tension pressure sensor Cardiovascular, which is called weighing equipment, its characteristics determine the accuracy and reliability of weighing equipment on a very large level. How to design a weighing device is a difficult problem. How to use balance with good characteristics Pressure sensor In fact, the load cell is a kind of equipment which can change the quality data signal into the electronic signal output which can be measured accurately.

The use of sensors should first consider the specific office environment where the sensors are located, which is particularly important for the proper use of sensors. It is related to whether the sensors can work normally and other safety factors and service life, and even the credibility and reliability of all electronic weighing instruments. So how to choose a more powerful scale for tension and compression force sensor What about it? I'll give you a detailed introduction.

A variety of foil resistance strain gauges of various metal materials with resistance value of 350 Ω are widely used in the weighing and tension pressure sensor of the scale. Therefore, various weighing equipment has the characteristics of comprehensive high precision, good reliability and convenient display information in specific application.

The natural environment for the application of weighing and pulling pressure sensor:

In fact, the weighing and pulling pressure sensor is a kind of electronic signal output device which can convert the quality data signal into accurate measurement. The specific office environment where the sensor is located should be taken into consideration before using the sensor. This is particularly important for the proper use of the sensor. It is related to whether the sensor can work normally and other safety and service life, and even the credibility and safety factor of all electronic weighing instruments.

In general, high temperature and natural environment lead to coating raw material melting, spot welding and structure transformation of polyurethane elastomer thermal stress; smoke and dust, humidity and cold damage inductor short circuit fault; magnetic field can affect inductor output. Under the relative environmental factors, the matching load cell must be selected to consider the necessary weighing regulations.


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