Design and Development of a Pressure Transmitter Using Modified Inductance Measuring Network and Bellow Sensor

Design and Development of a Pressure Transmitter Using Modified Inductance Measuring Network and Bellow Sensor

In this paper, a pressure transmitter using a modified op-amp based network for inductance measurement using a bellow as sensor has been proposed to measure the pressure and to convert pressure changes in to an electrical current which can be transmitted to a remote indicator. The change in inductan...

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Veröffentlicht in:Sensors & transducers 2013-03, Vol.150 (3), p.32-32
Hauptverfasser: Narayana, Venkata Lakshmi K, Rao, Bhujanga A
Format: Artikel
Sprache:eng
Schlagworte:
Bellows
Design
Electric potential
Inductance
Linearity
Measurement techniques
Monitoring systems
Networks
Sensors
Temperature effects
Transmitters
Voltage
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creator Narayana, Venkata Lakshmi K
Rao, Bhujanga A
description In this paper, a pressure transmitter using a modified op-amp based network for inductance measurement using a bellow as sensor has been proposed to measure the pressure and to convert pressure changes in to an electrical current which can be transmitted to a remote indicator. The change in inductance due to change in pressure is measured by an improved modified operational amplifier based network. It has been observed that the variation in gauge pressure from 0 to 70 psi having linear relationship with output ac voltage in the range of 0 to 85.0 mV. Corresponding to pressure variations, the ac output voltage further converted into an electric current of 4 to 20 mA for remote indication and control purpose. The investigations have been performed to sense air pressure of pressure tank fitted with pump piston. The experimental results are found to have good linearity of about ± 0.1 % and resolution.
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source Alma/SFX Local Collection; EZB Electronic Journals Library
subjects Bellows
Design
Electric potential
Inductance
Linearity
Measurement techniques
Monitoring systems
Networks
Sensors
Temperature effects
Transmitters
Voltage
title Design and Development of a Pressure Transmitter Using Modified Inductance Measuring Network and Bellow Sensor
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