Tri-axial piezoelectric integrated vibration transmitter for industrial field

Abstract

The invention discloses a tri-axial piezoelectric integrated vibration transmitter in the field of sensors. The tri-axial piezoelectric integrated vibration transmitter comprises a square three-dimensional coordinate housing which is provided with a groove therein for placing a sensitive component. The sensitive component is arranged in the groove. The sensitive component comprises a base disposed in a sleeving manner in an isolation cover. The base is provided with a support plate which is perpendicular to the base. A bolt is arranged on the support plate. The bolt is sleeved with a lining on the outer periphery thereof. The lining is sleeved with a chip, a crystal piece, a conductive piece and a mass block on the periphery thereon along a bolt shaft. The end portion of the bolt is in threaded connection with a limit nut. A signal conditioning circuit is arranged above the sensitive component in the isolation cover. A connector connected with the signal conditioning circuit is also arranged on the square three-dimensional coordinate housing. In the invention, the speed and voltage signal of a sensor is converted into a standard 4-20mA current signal by using a precision integration circuit and an anti-interference V / I conversion design, the output signal precision is improved, and the tri-axial piezoelectric integrated vibration transmitter can be used for real-time monitoring of an asynchronous motor on a locomotive.

Description

technical field [0001] The invention relates to a speed sensor, in particular to a three-axis piezoelectric speed sensor. Background technique [0002] The core of industrial automation is the sensor. All components of industrial production need to be monitored by sensors, and the data is fed back to the control center. When an abnormality occurs, it will be called in advance, so as to prevent and maintain in time to ensure the normal progress of industrial production. [0003] Piezoelectric speed sensor is a measuring instrument made by piezoelectric principle to measure vibration, displacement, rotational speed and other parameters. Three-axis piezoelectric speed sensor can measure vibration signals in three directions at the same time. It is used in power generation, steel, metallurgy Measurement of related mechanical equipment such as rotation and reciprocating motion in industrial fields such as chemical industry, rail transit, etc. [0004] At present, the output sign...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a three-axis piezoelectric integrated vibration transmitter suitable for industrial sites, which solves the problems of serious interference in the output voltage signal of the three-axis speed sensor in the industrial site, large voltage signal errors, and unstable signal transmission. , making the detected speed data more stable and reliable

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