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Load adjustable surface acoustic wave actuator

A surface acoustic wave, actuating device technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem that the contact pressure of the surface acoustic wave brake cannot be known and the implementation is difficult. And other issues

Inactive Publication Date: 2005-03-09
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these adjustment methods are not only difficult to implement in practical application, but once the weight loaded on the slider is an unknown weight, the contact pressure between the slider and the surface acoustic wave brake cannot be known. , of course there is no way to control and adjust

Method used

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  • Load adjustable surface acoustic wave actuator
  • Load adjustable surface acoustic wave actuator
  • Load adjustable surface acoustic wave actuator

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Embodiment Construction

[0015] see Figure 2 to Figure 4 , is an adjustable load surface acoustic wave actuator 100 provided by the first preferred embodiment of the present invention, which mainly includes a positioning platform 10 , a surface acoustic wave brake 20 , a slider 30 and a support structure 40 .

[0016] The inside of the positioning platform 10 is formed with an opening facing upwards to accommodate the area for the slider 30, and a sliding bearing 11 is respectively extended outward on the two opposite side walls of the area. groove.

[0017] The surface acoustic wave brake 20 is made of piezoelectric material crystal, and is arranged at the bottom of the inner joint area of ​​the positioning platform 10, and a number of index electrodes (not shown) are formed on the top surface of the surface acoustic wave brake 20. , and the voltage can be input from the finger electrode, and the inverse piezoelectric effect generated by the piezoelectric material can be used to make the top surfac...

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Abstract

A loading adjustable surface sound wave actuating device includes: a positioning platform with a sliding bearing at each of the opposite sides, a surface sound wave actuating device set on the platform between the two sliding bearings which can generate a preset surface sound wave on its top surface, a slide block on the platform having a force part contacting with the top surface of the actuator and two positioning parts set in the sliding bearings in which the sound wave of the actuator drives the block to shift, a supporting structure applying a preset force to the positioning part of the block, thus the contact pressure between the block and the actuator is kept at a constant value.

Description

technical field [0001] The present invention relates to a surface acoustic wave actuating device, in particular to a surface acoustic wave actuating device with an adjustable load. Background technique [0002] Surface Acoustic Wave Surface Acoustic Wave, SAW is a form of wave in physical phenomena, this wave will pass along the surface of a semi-infinite elastic body. If the finger electrode is made on the surface of the piezoelectric crystal, an Interdigital Transducer (IDT) is completed, and the voltage is input from the finger electrode, and the piezoelectric crystal will generate surface acoustic waves on the surface of the piezoelectric crystal due to the inverse piezoelectric effect. , this technology is widely used in the field of electronic communication, as a function of filtering or signal processing. [0003] Because of their small amplitude and high resonant frequency, surface acoustic waves have recently been found to be useful as a driving method for nanoposi...

Claims

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Application Information

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IPC IPC(8): H02N2/04
Inventor 周大鑫朱怡铭王维汉巫震华
Owner IND TECH RES INST
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