We can monitor many parameters and characteristics by measuring TEN, such as surge frequency, spectrum width, threshold current, mode jump and stability of output light power.
通过对激光的电噪声的测量可以监测激光器的诸多参数和特性，如弛豫频率，谱线宽度，阈值电流，模式跳变及输出光功率是否稳定等。
A mixing frequency excitation current source is designed according to the analysis of requirements of the bioelectric impedance measuring system.
通过分析生物阻抗测量系统的需求，设计了一种应用于生物阻抗测量的混频激励电流源。
This paper mainly studies the measuring method for the thickness of plating layer ofthe eddy-current sensor in the case of the multi-frequency and multi-parameters.
主要研究了电涡流传感器在多频率多参数下镀层厚度的测量方法。
On the basis of this, injecting frequency conversion signal method on measuring capacitive current is selected to use here. It is reliable and its error is small, timeliness is good.
在此基础上，选择了对地电容电流测量的注入变频信号法，该测量方法具有测量误差小、实时性良好、安全可靠的特点。
There is provided a method for measuring a parameter of a power frequency current being carried by a power line.
本发明提供一种测量由电力线承载的工频电流的参数的方法。
The steps of carrying on the method for measuring the life of luminescence are as follows:1 Use a sine alternate current with changeable frequency to stir up the sample;
该测 量发光寿命的方法的步骤：①用频率能够调节的正弦交流电激发样品；
The steps of carrying on the method for measuring the life of luminescence are as follows:1 Use a sine alternate current with changeable frequency to stir up the sample;
该测 量发光寿命的方法的步骤：①用频率能够调节的正弦交流电激发样品；
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