Affect the stability of the weighing instrument sensor and external environmental factors

Weighing sensor in normal use after a period of time, the basic performance parameters of the product remains the same, namely the stability of the products. Weighing sensor factory engineer said: in addition to its own structure, the main factors influencing the weighing sensor, long-term stability is the use of the environment. Such as climate, temperature, humidity, pressure, etc. ; Electromagnetic environment and electromagnetic field or electromagnetic radiation interference. In order to make the weighing sensor has a good stability, it must have very strong environment adaptability, before choosing weighing sensor, must check work environment, according to the different work environment to choose the appropriate sensor or take appropriate protective measures, to reduce the environmental impact of symmetric weight sensor. Environment symmetric weight sensors will have the following effects: 1, high temperature environment including coating material ablation, opening and sensor elastomer structure change of stress corrosion. To work under high temperature environment of weighing sensor, generally USES the high temperature resistance sensors, moreover also should increase heat insulation, water or air cooling device such as a special. 2, the outdoor dust and humidity effects on sensor internal short circuit. In this environment, should choose the high air tightness transducer. 3, weighing sensor belongs to the electric equipment, can't contact with strong acid or alkali substances. If in contact with the sensor, not only unable to guarantee the stability of the sensor will damage the machine. 4, the existence of electromagnetic field is easy to interfere with the basic of the weighing sensor output. Generally speaking, the sensor has the function of electromagnetic interference shielding, shielded cable. 5, when using the weighing sensor, must be far away from fire or explosives. This is because when weighing sensor to work out a lot of heat. If close to the fire or explosive, there will be a danger. The stability of the sensor has a quantitative indicators. After more than life, should be before use to the calibration parameters, to determine whether the performance of the sensor changes. In some sensors can be use for a long time and cannot be arbitrarily change applications, choose the stability of the more strict requirements of sensors, and can withstand the test of time. Weighing sensor factory engineer said, at last, the measurement range of the product is mainly decided by the weighing scale. In general, the work scope of the sensor should be in 30% 70%, long-term overload will shorten the service life of the weighing sensor.

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