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Triaxial; coaxial, / spring; tubular

definition:

The probe clamp is a mechanical device fixed on the needle base to connect the probe and the signal cable, and is used for fixing the probe and extracting signals. The probe holder will move linearly in the X-Y-Z direction as the X-Y-Z knob of the needle holder is adjusted.

Model:

1. Divided by mechanical structure

A. Spring model:
The probe in the pinhole is fixed by the spring force, and the pinhole can be seen by pushing the spring backward, and the probe is fixed after the spring force is released. You can choose to connect common cable coaxial cable or triaxial cable at the back.


B. Tubular Model:
The probe is fixed by the inner copper tube, the outer copper tube is shielded from noise interference, and an insulation layer is provided between the inner and outer copper tubes. You can choose to connect common cable coaxial cable or triaxial cable at the back.

2. Divided by leakage accuracy

A. Coaxial probe holder:
The rear end of the coaxial probe clamp is connected to a 1.5 meter long coaxial cable with a BNC (coaxial male) interface. Telecommunications test accuracy is better than 10 pA when using standard shielded boxes. The front probe fixing member can be spring or tubular.

B. Three-axis probe holder:
The rear end of the triaxial probe clamp is connected to a 2.1-meter-long triaxial cable with a triaxial (male) interface. Telecommunications test accuracy is better than 100fA when using standard shielded boxes. The front probe fixing member can be spring or tubular. It is not recommended for use on the CB-40 small header.

Selection steps:

Please first select the type of the needle holder according to the size of the test electrode, and then determine the probe clamp to use ordinary cables, coaxial cables or triaxial cables according to the telecommunication test accuracy. Finally, choose the mechanical fixing part of the clamp to use springs. Still tubular. Pay attention to the mechanical accuracy of the needle seat when selecting.