Title :
Analyses and correction of the dynamic properties of the VALYDYNE TM differential pressure sensor
Author :
Buchala, G. ; Sroka, R.
Author_Institution :
Dept. of Meas. & Instrum., Univ. of Min. & Metall., Cracow, Poland
Abstract :
The paper presents the results of the modeling and measurement study of the differential pressure transducer MP45 series made by the ValidyneTM Corp. This research is necessary during the construction of the device for identification of the human airducts model using the time method. The transducer parameters in the manufacturer´s model are significantly different from the parameters calculated after the measurement study. This paper presents verification of models and frequency range of transducer. A new, more accurate model is proposed. The results obtained show that it is necessary to make a correction of the dynamic properties of this pressure sensor. The effects of this correction using first- and second-order correctors are presented and analyzed
Keywords :
biomedical measurement; biomedical transducers; diaphragms; identification; physiological models; pneumodynamics; pressure sensors; step response; transfer functions; VALYDYNE MP45 series; differential pressure transducer; dynamic properties; first-order correctors; four-element model; frequency range; human airducts model identification; model verification; modeling; respiratory system; second-order correctors; step resonse; time method; transducer parameters; transfer function; Circuits; Electrical resistance measurement; Force measurement; Frequency; Humans; Mathematical model; Pressure measurement; Sensor phenomena and characterization; Time measurement; Transducers;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928899
