A relaxation-oscillator-based interface for high-accuracy ratiometric signal processing of differential-capacitance transducers

IEEE Transactions on Instrumentation and Measurement

Volumn 47, Issue 1, 1998, Pages 11-15

  Mochizuki, Kouji ^b   Watanabe, Kenzo ^a,c   Masuda, Takashi ^d   Katsura, Motoyasu ^b  

^a IEEE

^b NUMAZU COLLEGE OF TECHNOLOGY   (Japan)

^c SHIZUOKA UNIVERSITY   (Japan)

^d Yamatake Honeywell Co Ltd   (Japan)

Author keywords

Analog circuit; Capacitive transducer; Intelligent transducer; Pressure measurement; Relaxation oscillator; Signal processing

Indexed keywords

CAPACITANCE; ELECTRIC NETWORK ANALYSIS; INTERFACES (COMPUTER); RELAXATION OSCILLATORS; TRANSDUCERS;

ANALOG CIRCUITS; CAPACITIVE TRANSDUCERS;

SIGNAL PROCESSING;

EID: 0031988215     PISSN: 00189456     EISSN: None     Source Type: Journal    
DOI: 10.1109/19.728780     Document Type: Article

References (8)

1. T. Saigusa and S. Gotoh, "UNIΔ series electronic differential pressure transducer," Yokogawa Tech. J., vol. 22, pp. 23-29, Mar. 1978, (in Japanese).
2. X. Li, G. C. M. Meijer, and G. W. de Jong, "An accurate smart capacitive angular-position sensor with a full circle range," in Instrum. Meas. Tech. Conf. Proc., 1995, pp. 80-82.
3. H. Matsumoto, H. Shimizu, and K. Watanabe, "A switched-capacitor change-balancing analog-to-digital converter and its application to capacitance measurement," IEEE Trans. Instrum. Meas., vol. IM-36, pp. 873-878, Dec. 1987.
4. Y. Cao and G. C. Temes, "High-accuracy circuit for on-chip capacitance ratio testing or sensor readout," IEEE Trans. Circuits Syst., vol. 41, pp. 637-639, Sept. 1994.
5. T. N. Toth and G. C. M. Meijer, "A low-cost smart capacitive position sensor," IEEE Trans. Instrum. Meas., vol. 41, pp. 1041-1044, Dec. 1992.
6. T. N. Toth, G. C. M. Meijer, and H. M. M. Kerkvliet, "Ultra-linear, low-cost measurement system for multi-electrode pF-range capacitors," in Instrum. Meas. Tech. Conf. Proc., 1995, pp. 512-515.
7. R. F. Wolffenbuttel and P. P. L. Regtien, "Capacitance-to-phase angle conversion for the detection of extremely small capacities," IEEE Trans. Instrum. Meas., vol. IM-36, pp. 868-872, Dec. 1987.
8. K. Mochizuki, T. Masuda, and K. Watanabe, "An interface circuit for high-accuracy signal processing of differential-capacitance transducers," in Instrum. Meas. Tech. Conf. Proc., 1996, pp. 1200-1203.