Title :
Microprocessor-based audio-frequency CT automatic calibrator
Author :
Wang, Z.Y. ; Ma, G.L. ; Yie, C.
Author_Institution :
Harbin Inst. of Technol., China
Abstract :
An automatic microprocessor-based audio-frequency CT calibrator, which is based on sample-hold detection, is presented. Due to the use of a nonbalancing differential circuit (without feedback channel), unstable measurement is avoided. The calibrator can be used at frequencies of 50-1500 Hz. Its accuracy is ±1%
Keywords :
calibration; computerised instrumentation; sample and hold circuits; transformers; 50 to 1500 Hz; automatic microprocessor-based audio-frequency CT calibrator; comparative transformer; computerised instrumentation; nonbalancing differential circuit; sample-hold detection; Automatic control; Circuits; Computed tomography; Electrical equipment industry; Error correction; Filters; Frequency; Instruments; Phase detection; Transformers;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1988. IMTC-88. Conference Record., 5th IEEE
Conference_Location :
San Diego, CA
DOI :
10.1109/IMTC.1988.10860
