Detection assembly, detection instrument and detection method

The invention provides a detection assembly, a detection instrument and a detection method. The detection assembly is connected with the frequency sweeping assembly and used for detecting impedance changes of the power device under different frequencies, and the detection assembly comprises a clamping assembly, a grounding probe and at least one detection probe; the clamping assembly comprises a first clamping part and a second clamping part, and one end of the first clamping part is connected with one end of the second clamping part; the grounding probe penetrates through the first clamping part; the at least one detection probe penetrates through the second clamping part, is arranged in parallel with the grounding probe and can be connected with the power device; wherein the first clamping part and the second clamping part can slide relatively, so that the grounding probe is relatively far away from or close to the at least one detection probe. 本发明提供了一种检测组件、检测仪器和检测方法。检测组件与扫频组件相连接，用于检测功率器件在不同频率下的阻抗变化，检测组件包括夹