AUTOMATION
CONTROLS

Search
Discontinued
Products



Introduction & Features - Pressure sensors

Introduction

Principle of operation

A pressure sensor converts changes in pressure of a gas or a liquid into an electrical signal by means of a pressure sensing device, and generates an analog output proportional to the pressure or a switching output which operates at a particular pressure level. All Panasonic Industrial Devices SUNX pressure sensors incorporate semiconductor transducers, which offer long life and high reliability, as the sensing devices.

Structure of electronic pressure sensor

For non-corrosive gases

The diffused semiconductor transducer converts pressure into an electrical signal, which is then processed by an amplifier and an output circuit.

For non-corrosive gases

For other gases and liquids

The pressure is applied to a stainless diaphragm, whose distortion is converted by a bonding type semiconductor transducer, bonded at the back of the diaphragm, into an electrical signal. This signal is then processed by an amplifier and an output circuit.

For other gases and liquids

Return to top

Features

Features of electronic pressure sensor

Pressure sensors can be broadly classified into two types: electronic type and mechanical type.
Previously, mechanical type pressure sensors, which are relatively inexpensive, were commonly used. However, since they have low reliability and short life, electronic pressure sensors are now being increasingly used.

Type Electronic type
(Diffusion type, bonding type)
Mechanical type
(Bourdon-tube, bellows, etc.)
  Electronic type (Diffusion type, bonding type) Mechanical type (Bourdon-tube, bellows, etc.)
Principle
  • Direct conversion from pressure to an electrical signal, providing a non-contact switching output.
  • Pressure is changed to displacement, which in turn operates (ON / OFF) a mechanical switch to provide a contact type switching output.
Advantage
  • High accuracy
  • High reliability and long life because of no mechanical parts
  • Quick response
  • Inexpensive
  • No power supply needed
Disadvantage
  • Expensive than mechanical type
  • Short lifetime
  • Poor response

Return to top

Related Products

Download

  • pressure_e.pdfDownload

Return to top

Return to top

CONTACT US
BY EMAIL
Please click your area to select country or region



BY PHONE

FAQ


Requests to customers (Automation Control Components & Industrial Device) [Excluding specific product]
Requests to customers (Automation Control Components & Industrial Device) [For specific product]
Requests to customers (FA Sensors & Components [Excluding motors])
Requests to customers (Dedicated to industrial motors)