Title :
Microprocessor based new technique for measuring pneumatic pressure using optocoupler controlled vibrating wire transducer
Author :
Balasubramanian, Karuppanan ; Güven, Kamil ; Altun, Ziya Gokalp
Author_Institution :
Dept. of Electr. & Electron. Eng., Cukurova Univ., Adana, Turkey
Abstract :
A new and sensitive pneumatic pressure measuring device is proposed. The sensor consists of a diaphragm and a string fixed inside a hollow cylinder attached to a pneumatic medium. While one side of the diaphragm is exposed to pneumatic pressure, the string is stretched on the other side. With the use of a microprocessor, the string is periodically excited through an electromagnet and the vibrating frequency is measured from the signal obtained at an optocoupler. The frequency is calibrated to indicate the pressure
Keywords :
computerised instrumentation; frequency measurement; microcomputer applications; opto-isolators; pneumatic systems; pressure measurement; pressure transducers; vibration measurement; diaphragm; electromagnet; hollow cylinder; microprocessor; optocoupler controlled vibrating wire transducer; pneumatic medium; pneumatic pressure measurement; string; vibrating frequency; Electric variables measurement; Engine cylinders; Equations; Frequency; Microprocessors; Pressure control; Pressure measurement; Transducers; Vibration measurement; Wire;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.351919
