A Vibration Pickup with Adaptive Mechanical Amplitude Detection Structure

Abstract

The invention provides a pickup with an adaptive mechanical amplitude detection structure. The pickup with an adaptive mechanical amplitude detection structure includes a support pedestal, clamps, a main pickup and servo-actuated pickups, wherein the main pickup includes a first cantilever beam and inertia mass blocks; one end of the first cantilever beam is fixed between the second clamp and thethird clamp; two side surfaces of the first cantilever beam are each provided with an inertia mass block; each servo-actuated pickup includes two second cantilever beams which respectively fixed between the first clamp and the second clamp, and between the third clamp and the fourth clamp; the inertia mass blocks are respectively arranged on two side surfaces, facing the second cantilever beams, of the first cantilever beam; and a coupling light spring is arranged at the position, corresponding to the corresponding inertia mass block, on one side, facing the first cantilever beam, of each second cantilever beam. The servo-actuated pickups of the pickup with an adaptive mechanical amplitude detection structure have a function of adaptively maintaining the vibration amplitude performance ofthe main pickup, so that the servo-actuated pickup is called as an adaptive mechanical detection structure. The adaptive mechanical detection structure has high integrated level, does not need intervention of extra sensing calculation, and can detect the vibration amplitude by means of the position of the servo-actuated cantilever beams without consuming extra electric energy.

Description

technical field [0001] The invention belongs to the technical field of miniature sensors, in particular to a vibration pickup with an adaptive mechanical amplitude detection structure. Background technique [0002] Vibrator is a device that detects some useful information in a vibrating object, and is used to identify signals such as displacement and switches. Geophones are usually used to extract the information carried by objects to analyze the operating conditions of machinery and equipment or to obtain some useful signals. [0003] The vibration pickup is a kind of sensor, which converts the vibration signal into an electrical or mechanical signal, and the signal can accurately reflect the vibration of the vibration source. According to the different detection quantities, it can be divided into several types such as speed vibration pickup and displacement vibration pickup, and according to the principle of energy conversion, it can be divided into piezoelectric type, el...

AI Technical Summary

Problems solved by technology

On the one hand, this brings additional cost and increased complexity; on the other hand, in some specific occasions with low power consumption and complex electromagnetic environment, the application is limited

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