Đầu đo điện trở dùng vòng tròn đòng tâm Trek 152P-CR-1
The Trek Model 152P-CR-1 Concentric Ring Probe is capable of measuring surface and volume resistance in materials as per IEC or ESDA standards. A three (3) position switch on the probe selects surface resistance or volume resistance measurements with either a guarded or unguarded outer electrode. (See page 2.) An optional Test Plate Set [CN 17530] consists of two separate plates. A stainless steel conductive plate can act as a second electrode to apply the test voltage to the sample under test and also provides a mini-banana plug connection for a secure ground connection. An insulative plate is utilized as needed. The use of these plates are described in the ESD STM11.12 and in IEC 61340- 2-3 standards.