压电谐振

一种新型高精度压电谐振式石英晶体温度传感器

A New Type Of High Precision Piezo-Resonance Quartz Crystal Temperature Sensor

压电谐振式力传感器响应时间的研究

Study of Piezoelectric Resonator Type Force Sensor Respond Time

压电谐振式水平姿态传感器研究

Study on Piezoelectric Resonator Type Level Posture Sensor

平膜压电谐振式结冰传感器信号检测方法

Signal Delection of Resonant Diaphragm Piezoelectric Ice Sensors

压电谐振式声发射接收传感器设计

Design of piezoelectric resonant sound emission receiver sensor

通过对平膜压电谐振式结冰传感器的几种测量方案的分析，提出一种开环扫频的信号检测方法。

Based on analysis of some methods of signal detection of resonant diaphragm piezoelectric ice sensor , this paper proposes an open-loop frequency scan method of the signal detection .

提出压电谐振滤波器不能很好地滤除高频谐波的问题，结合一个具体例子理论推导了压电谐振滤波器存在许多干扰谐振频率，从而不能有效滤除一些特定频率的干扰信号。

Since piezoelectric resonant filter can not effectively prohibit higher-frequency harmonic , the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals .

Boost电路与LC谐振技术提高PZT的供给电压，弥补了单纯采用LC谐振升压技术时，由于温度变化改变压电陶瓷谐振参数，导致驱动输出电压变化的不足。

It raised the supply voltage of the PZT by Boost circuit and LC resonant technology and offset the shortage of output voltage caused by using a simple LC resonant technology , resulting temperature changes of piezoelectric .

压电激励谐振筒压力传感器的研究

Research vibrating mode of PIEZO-EXCITING resonant cylinder pressure transducer

本文提出了一种利用补偿原理直接测量压电换能器串联谐振频率fs和并联谐振频率，fp的新方法一补偿法。

Put forward in this paper is a new and simple method for measuring the serial resonant frequency fs and the parallel resonant frequency fp of a piezoelectric transducer .

压电叠堆谐振特性的理论与实验研究

Theory and Experimental Research of Dynamic Properties of Piezoelectric Pile

用锁相环电路跟踪压电换能器并联谐振频率区

Tracking the fp region of the piezoelectric transducer by the phase-locked loop circuit

夹心式压电换能器的谐振频率跟踪方案设计

Resonance frequency tracing scheme for sandwich piezoelectric transducer

利用激光干涉技术研究压电换能器的谐振特性

Study on the Resonance Vibration Properties of Piezoelectric Ultrasonic Transducer by Laser Doppler Interferometry

一种直接测量压电换能器串联谐振频率和并联谐振频率的新方法

A novel direct method for measuring the serial and the parallel resonant frequencies of a piezoelectric transducer

设计了压电液相谐振电路。测定了压电石英晶体的品质参数。

The piezoelectric liquid phase oscillation circuit was designed and the performance parameters of piezoelectric quartz crystal were measured .

本文首次采用目前国内外最先进的激光光纤测振仪测量了多层压电变压器的谐振特性和振动位移情况，为多层压电变压器的设计和研究提供了一种非常有效的测试技术。

The laser fiber vibrometer was firstly adopted to measure the resonance property and displacement of the vibration of multilayer piezoelectric transformer . An effective measuring technology is applied to design and study of multilayer piezoelectric transformer .

压电换能器在并联谐振频率附近的特性及自动频率跟踪的研究

Study on the Behavior of the Piezoelectric Transducer around Its Parallel Resonant Frequency and Automatic Frequency Tracing

压电变压器是在谐振频率状态下工作，因此还需要较高的谐振频率温度稳定性。

Furthermore , because the piezoelectric transformer was operated in resonant frequency , the high temperature stability of resonant frequency was necessary .

溢流式圆管换能器是一种典型的宽带发射器，传统的溢流式圆管换能器主要利用液腔谐振和压电圆管径向谐振耦合来实现宽带发射。

With the coupling of fluid cavity , radial vibration and dipole vibration mode , the bandwidth of the free-flooded transducer can be highly extended .

对压电换能器在并联谐振频率附近的特性包括功率自动调节性能、品质因数、效率、激励电压及承受电压等进行了分析研究。

This paper studies characteristics of piezoelectric transducers working at frequencies near parallel resonance including the automatic power adjustment feature , quality factor , efficiency , driving voltage required , and maximum sustained voltage .

压电陶瓷&金属双迭片弯曲型压电传感器谐振频率研究

Research on Metal-piezoceramics Bimorph Flexural Piezoelectric Ceramic Transducer Resonance Frequency

由薄板小挠度变形和轴对称的条件下压电振子弯曲位移的一般解求得压电陶瓷-金属双迭片弯曲型压电传感器的谐振频率。

Then a general solution of displace of piezoelectricity oscillator with the assumption the small deflection and the axial symmetry conditions are satisfied is presented .

目前压电材料参数测试系统往往测试功能单一，测试的压电参量有限，如测量压电材料的谐振频率时基本都借助于阻抗参数测试仪，通过手工计算得到其他压电参数。

At the present time , the existing piezoelectric parameters testing systems are limited in testing various parameters . People always obtained harmonic frequency of piezoelectric materials by means of impedance testing instrument , and manually calculated other piezoelectric parameters .

同时得到了压电可移简支梁的共振频率、固有频率和电场频率三者之间的变化关系，压电执行器谐振幅度与作用电场强度的关系。

And we also get the fundamental resonant frequency of piezoelectric slip simply supported beams with the variation in electric field The relations between predicted resonance amplitude of max deflections for the piezoelectric actuators and the electric field .

研究了一种压电振子电学性能自动测试系统，系统通过对压电振子频率-阻抗关系的测量得到压电振子的谐振频率、品质因数和机电耦合系数等电学参数。

A kind of piezoelectric vibrator test system for the electric parameters was studied , This system can test the resonant frequency 、 quality factor and electromechanical coupling coefficient of piezoelectric vibrator by measuring the relation of Frequency-Impedance of piezoelectric vibrator .

以压电晶片与金属基板的厚度比α、直径比β（称结构参数）为变量，推导出了压电振子谐振频率及有效机电耦合系数的计算方法。

As a result of it , the relationship between the performance parameters ( the resonant frequency and effective electromechanical-coupling parameter ) and the structural parameters ( the diametric ratio β and thickness ratio α of piezoelectric membrane to metal plate ) is figured out .