Taizhou Yujinsheng Metal Products Co., Ltd
Taizhou Yujinsheng Metal Products Co., Ltd
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Oilfield weight indicator The main function of the weighing sensor is to convert gravity into a measurable electrical signal, thereby achieving accurate measurement of weight. Weighing sensor is a device that converts mass signals into measurable electrical signal outputs. Its core working principle is based on the measurable changes of certain physical properties caused by changes in external forces.
Working principle Weighing sensors usually use the strain effect. When external force acts on the elastic element of the sensor, the elastic element will deform, and the strain gauge attached to it will also deform, causing the resistance value of the strain gauge to change. By measuring the change in resistance value, and after specific circuit conversion and signal amplification processing, an electrical signal proportional to the applied external force can be obtained, and then the weight of the object can be determined.
Types and characteristics Resistive strain type weighing sensor: The most widely used, with the advantages of simple structure, high precision, strong reliability, etc., suitable for a variety of harsh industrial environments. However, its disadvantage is that it is sensitive to temperature changes and requires effective temperature compensation measures.
Capacitive weighing sensor: It measures weight based on changes in capacitance, has high precision and good dynamic response characteristics, and is less affected by environmental factors such as temperature and humidity. However, its cost is high, and the circuit design and debugging are complicated.
Piezoelectric weighing sensor: It uses the charge change generated by piezoelectric materials when they are subjected to force to measure weight. It has the advantages of fast response speed and good high-frequency characteristics, and is suitable for dynamic weighing and impact force measurement. However, its low-frequency performance is poor and it is not suitable for static or slowly changing load measurement.