Test Fixture Compensation Techniques in Impedance Analysis
The test fixture influence compensation techniques of the complex impedance measurement are analyzed. The auto-balancing bridge method has been selected for the measurements in 100 kHz to 20 MHz frequency range. The hardware and the software techniques for the test fixture influence compensation are briefly discussed. The complete simulation of the system using P-Spice has been done. The simulation results when using the OPA 8099 and the LMH 6694 operational amplifiers in the auto-balancing bridge method are presented. Three software compensation techniques for the test fixture influence have been analyzed and preliminary simulation and real world experiment results presented. The Open/Short measurement and Open/Short/Load software compensation techniques application results compared with theory both for P-spice simulation and experiment. Ill.10, bibl. 8 (in English; summaries in English, Russian and Lithuanian).
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