Linear displacement transducer Basics！

Linear displacement transducer Basics

     

With the automated production process for higher level of accuracy requirements, linear displacement sensor is widely used there. The process in the textile industry control applications, it can optimize the production process, improve production efficiency and product quality, but also reduce the production costs and losses due to failure to bring. Linear displacement sensor is a potentiometer type first, then the development of magnetostrictive, many are now using inductive detection, accuracy and stability has been greatly improved. The following basic knowledge to do it under a brief introduction.

principle

Linear displacement sensor is a potentiometer element to convert into an electrical signal with a linear device or any function of the linear mechanical displacement volume. To achieve the purpose of measuring the displacement potentiometer designed, it must be requested between displacement and resistance change has a definite relationship. Usually set-variable resistance slide in fixed position sensors to measure different resistance by displacement in the slide rail.

New inductive linear position sensor to detect the use of coupled RLC circuit, it has a greater advantage than the potentiometer type and magnetostrictive sensor, is a non-contact measurement sensors. It integrates the signal transmitter and receiver coil system, it can be accurately fixed to the printed circuit board in the form of a printed coil. Transmit signal coil activated by a high frequency alternating magnetic field and the interaction of the resonator of a RLC sensing circuit. In the cloth winding position of the received signal, the voltage change by the interaction between the resonator and the coil is generated. This is also the output signal of the sensor. To make the measure more quickly and easily, sensors, respectively, have a rough and precise measuring coil system. They are used to locate the position of the resonator. Both role to ensure the accuracy of the measurement.

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