校准精度，是保证向两端惠普41941a (1.5m)和惠普41941b(3米)阻抗探头。
Calibration accuracy is guaranteed to the tips of the HP 41941a (1.5 m) and HP 41941b (3 m) impedance probes.
X1探头﹕没有衰减﹐输入阻抗跟示波器输入阻抗一样(通常是1兆欧)。由于对测试电路有很大的负载影响﹐所以很少使用这种探头。
X1 probe: no attenuation, input impedance follow that of scope input impedance (usually 1 Mohm). This type of probe is seldom used because of heavy loading effect on circuit under test.
简要介绍了涡流检测的基本原理和涡流探头的特性；分析和研究了涡流检测探头提离变化对阻抗的影响；
The basic principle of eddy current testing is introduced and the coil impedance responses due to the variations of the probe coil lift-off are analyzed and studied.
介绍了电流探头传输阻抗的校准原理，并对测量不确定度进行了详细的分析评定。
The principle for calibrating the current probe is introduced in this paper. And the analysis and evaluation of the uncertainty have been done in detail.
介绍一套基于四电极测量原理的中低频液体阻抗测量系统，采用四电极的测量探头用于电导性液体中低频阻抗谱的测量。
An impedance spectroscopy measurement system for conductive aqueous solution at medium to low frequencies is designed using the four-electrode measurement theory.
检测电路采用阻抗—电压变换法，检测涡流探头阻抗变化。
Detection circuit use impedance - voltage transformation method to detect changes in eddy current probe impedance.
检测电路采用阻抗—电压变换法，检测涡流探头阻抗变化。
Detection circuit use impedance - voltage transformation method to detect changes in eddy current probe impedance.
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