Intelligent differential transformer-type static and dynamic displacement transducer and displacement measuring method thereof

Abstract

The invention discloses an intelligent differential transformer-type static and dynamic displacement transducer and a displacement measuring method thereof. The intelligent differential transformer-type static and dynamic displacement transducer comprises a voltage/current measuring unit, a temperature measuring unit, a processing unit and a memory unit, wherein the voltage/current measuring unit comprises a differential transformer and a voltage/current processing module; the processing unit comprises a processor, a displacement value computing module, a temperature compensating module and a number identifying module; the cross sections of a secondary coil a (2) and a secondary coil b (3) are stepped; the secondary coil a (2) and the secondary coil b (3) are horizontally wound incrementally from the central line of a coil cavity (8) to two ends respectively; and the memory unit at least stores an equipment number, a calibrating linear coefficient and a temperature compensating coefficient. The intelligent differential transformer-type static and dynamic displacement transducer and the displacement measuring method thereof have the advantages that a target displacement value can be directly output; the linear precision of the differential transformer is high; a host machine can operate and control a transducer with a specified number; and the transducer can work independently without the control of the host computer.

Description

technical field [0001] The invention relates to an intelligent differential transformer type dynamic and static displacement transmitter and a displacement measuring method thereof. Background technique [0002] With the development of our country's national economy, the advancement of science and technology, and the continuous improvement of automation, the amount of sensors is increasing. The development of high-tech displacement sensor products has broad prospects. Differential variable pressure displacement sensor (LVDT) has been widely used in engineering machinery, aerospace industry due to its advantages of simple structure, good linearity, high precision, large measurement range, less interference from the outside world, good dynamic characteristics and high working stability. Aviation, railway transportation, bridge survey, chemical industry and scientific research and many other fields. [0003] However, the existing differential transformer displacement sensors h...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the existing differential transformer-type displacement sensor, and provide a new type of intelligent differential transformer-type dynamic and static displacement transmitter with high precision, small temperature drift, long service life and output as the target displacement value And its displacement measurement method overcomes the fact that the traditional differential transformer displacement sensor can only output intermediate values ​​such as current or voltage; The generated electromotive force output becomes smaller, and the linearity accuracy is poor; the temperature compensation module is not installed, which affects the measurement accuracy of the target displacement value; the transmitter is not numbered, which is likely to cause disorder and other shortcomings

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