Title :
Calibration of precision measuring amplifiers for strain gauge transducers
Author :
Bohacek, J. ; Nakamura, Y. ; Yoshihiro, K. ; Endo, T.
Author_Institution :
Fac. of Electr. Eng., Czech Tech. Univ., Prague, Czech Republic
Abstract :
A method is described that utilizes a ratio device consisting of multi-decade inductive voltage dividers to calibrate precision measuring amplifiers for strain gauge transducers. Most frequently, this device is used to calibrate 2.5 mV/V ranges of the amplifiers, relative standard uncertainty being 5 ppm for the ratio of 0.0025 and at 225 Hz.
Keywords :
bridge circuits; calibration; instrumentation amplifiers; measurement uncertainty; strain gauges; voltage dividers; 225 Hz; calibration; equivalent circuit; multi-decade inductive voltage dividers; precision measuring amplifiers; ratio device; relative standard uncertainty; strain gauge transducers; Admittance; Calibration; Electric variables measurement; Equivalent circuits; Impedance measurement; Laboratories; Measurement standards; Strain measurement; Transducers; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699813
