电桥平衡

关于电桥平衡中一些问题的分析

Analysis on Some Problems of Bridge Balance

这种电桥平衡的方法可在软件中对初始电压进行补偿。

This method of bridge balancing compensates for the initial voltage in software .

利用电桥非平衡态测人体温度

The measurement of human skin temperature with unbalanced electrical bridge

几种典型电桥自动平衡电路工作原理和性能分析

Analysis of Principle and Performance of Several Kinds of Typical Bridge Autobalance Circuits

数字阻抗电桥自动平衡之分析

Analysis of Automatic Balance for Digital Impedance Bridge

采用电流比较器高压电桥可平衡掉试品中容性电流，大大提高损耗电流的测试精度。

High-voltage current-comparator bridges can balance out the capacitive current of test products , which greatly improve the precision of loss current testing .

温度的变化引起热敏电阻阻值的变化，从而使电桥失去平衡，引起流过微安表的电流发生变化。

A changed temperature lead to the change of value of the thermistor , then the bridge balance broke up , which induced the change of current value to the microammeter .

因此，为了得到可靠的数据，测试前都要对电桥进行平衡，使其输出为零。（4）数字滤波算法的研究。

Therefore , in order to obtain reliable data , before measurement we balance the bridge to make the output is zero . ( 4 ) Research the digital filter algorithm .

通过对喇叭接收的反射信号相位的变化的判断，来确定微波电桥的平衡性。（2）信号处理电路部分是对魔T两臂的输出信号进行一系列处理的过程。

Judging the changing phase of the reflected signal to determine the balance of the bridge . ( 2 ) The output signal from the magic T is processed in the signal processing circuit .

同时，将就可能影响通信可靠性的几个问题，如数据误码、瞬态干扰等问题进行研究，找到相应的解决方法，以提高整个系统的稳定性。（3）电桥自动平衡方法的研究。

At the same time , it has found the corresponding solutions to improve overall system stability , such as data errors , hits and so on . ( 3 ) Research the method of bridge auto-balance .

在补偿法测量电阻实验中，如果电路中的电阻选取不当则不能调节电桥的平衡，笔者对该实验电路中的电阻选取问题作了分析和讨论。

In the experiment of measuring resistance by using compensation method , if the resistance chosen is not suitable in the circuit , it cannot adjust the equilibrium of the bridge . This paper analyzes and discusses the problem of the resistance chosen in the test circuit .

分析了NDP在电火工品无损检测中电桥自动调平衡的方法、参数计算及硬件电路和软件流程图。

Analyzes the method of auto balance 、 parameter calculation 、 hardware circuit and software flow chart of electric bridge of NDP in the non - destructive testing of EED .

电桥相位自动平衡的一个理论

A theory of automatic phase balance of AC bridge

提出了一种新的采用平衡电桥与不平衡电桥相结合的直流检测方法。

A new DC detection technique based on balanced bridge and unbalanced bridge is proposed .

不平衡电桥的自动平衡和测量

Auto-counterbalance and Measurement of Non-balance Electrical-bridge

本文提供了关于电桥相位自动平衡研究的主要结果。

This paper provides the major results of research for the automatic phase balance of AC bridge .

出于工作带宽和加工精度等方面的因素的考虑，设计采用的是环形电桥单边带平衡混频器来实现上变频。

For the limitations of the bandwidth and precision of manufacture , rat-race upper-sideband balanced mixer is utilized in order to realize up conversion .

通常直流系统的绝缘情况主要是通过对称电桥的不平衡程度来反映的，但当正负母线绝缘均按同等比例下降时这种方法就会失效。

Generally , the unbalanced degree of symmetrical bridge is used as a chief means for reflecting insulation of DC system . However , it becomes disabled when the insulation of positive and negative poles drop in the same proportion .

把电阻应变丝埋入树脂界面层并作为一臂接入一直流电桥，测定等温固化时电桥的不平衡电压可以求取因固化反应树脂体积收缩而引起的残余应力。

The residual stress arising from the volume shrinkage on curing can be measured by means of measuring nonequilibrium voltage of bridge which consists of a strain gage resistance immersing into surface layer of resin as an arm .

论证表明，通过对电桥的可调参数任意调节两次，由两次调节所形成的误差电压的傅里叶系数即可完全确定电桥平衡的参数，得到被测阻抗Zx的值。

It has shown that the balancing parameters in AC bridge can be obtained by means of the Fourier coefficients of the error voltage , which is produced by arbitrarily adjusting the bridge two times , i. e.