Pressure Sensors

Pressure sensors are devices that sense the applied pressure of gases or liquids. The output of the measurement is then converted into an electrical signal which reflects the amount of pressure applied.


There are various different technologies used within pressure sensors. Depending on the requirements, this can influence their sensing accuracy and reliability. When the mechanical displacement within the sensor is turned into an electrical output signal there are 5 ways this can happen.


Resistive - These types of sensors use the change in electrical resistance of a strain gauge connected to the diaphragm.


Capacitive - Are highly sensitive and are able to measure low-pressure under 10 bar while still withstanding large overloads.


Piezoelectric - These sensors use substances like Quartz to generate a charge on the surface when pressure is applied. Piezoelectric pressure sensors are ideal for measuring fast changing pressures.


Optical - These use interferometry to measure pressure changes in optical fibre. They are not disturbed by EMI and can be used in noisy or medical environments.


MEMS - This stands for micro-electro-mechanical system and contains capacitive or piezo pressure sensing mechanisms on silicon at micron level resolution.


Types of Pressure Sensors


Within the sensors, there are various properties which can be used to classify them. This includes what pressure range they measure, their operating temperature range or the pressure type they measure.


Absolute Pressure Sensor - This type of sensor measures pressure relative to the perfect vacuum (zero reference point).


Gauge Pressure Sensors - These are often used to measure atmospheric pressure and are sometimes referred to as relative pressure sensors.


Sealed Gauge Pressure Sensor - Similar to a gauge pressure sensor except they measure pressure relative to a fixed pressure, not the current ambient atmospheric pressure which can vary.


Differential Pressure Sensors - These can be used to measure the difference between two different pressures (differential pressure) which can be connected to either side of the sensor. They are often used to measure pressure drops, fluid levels and flow rates.


Pressure Sensor Applications


Pressure sensors are used in many applications in a large range of industries. These include medical, aviation, automotive and marine.


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Description Price Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Process Connection Analogue Output Electrical Connection Communication Protocol Response Time Maximum Current Supply Voltage Interface
New
RS Stock No. 206-7021
Mfr. Part No.PP - 222 2EE
BrandVega
TWD6,912.00
Each
units
Relative -1bar 100bar 0.5 % Analogue Gas, Vapour - - - - - - 35 V -
New
RS Stock No. 206-7018
Mfr. Part No.PP - 222 28V
BrandVega
TWD6,998.00
Each
units
Relative -1bar 25bar 0.5 % Analogue Gas, Vapour G1/2 - - - - - 35 V -
New
RS Stock No. 206-7022
Mfr. Part No.PP - 222 3WZ
BrandVega
TWD6,912.00
Each
units
Relative -1bar 100bar 0.5 % Analogue Gas, Vapour - - - - - - 35 V -
RS Stock No. 313-5345
Mfr. Part No.14X1FA1GV1
BrandVega
TWD8,497.00
Each
units
Relative 0bar 10bar 0.3 % - Fluid, Gas, Vapour G1/2 4 → 20 mA DIN 43650 Connector - - - 12 → 36 V dc -
New
RS Stock No. 206-7044
Mfr. Part No.PP - 222 3A4
BrandVega
TWD14,467.00
Each
units
Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7032
Mfr. Part No.PP - 222 B5J
BrandVega
TWD11,505.00
Each
units
Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7040
Mfr. Part No.PP - 222 3XH
BrandVega
TWD8,929.00
Each
units
Relative -1bar 1000bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7019
Mfr. Part No.PP - 222 3JG
BrandVega
TWD6,998.00
Each
units
Relative -1bar 25bar 0.5 % Analogue Gas, Vapour G1/2 - - - - - 35 V -
New
RS Stock No. 206-7026
Mfr. Part No.PP - 222 2H2
BrandVega
TWD11,119.00
Each
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Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7036
Mfr. Part No.PP - 222 3AQ
BrandVega
TWD12,407.00
Each
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Relative -1bar 1000bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7023
Mfr. Part No.PP - 222 4D9
BrandVega
TWD6,912.00
Each
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Relative -1bar 100bar 0.5 % Analogue Gas, Vapour - - - - - - 35 V -
New
RS Stock No. 206-7020
Mfr. Part No.PP - 222 29B
BrandVega
TWD6,912.00
Each
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Relative -1bar 100bar 0.5 % Analogue Gas, Vapour - - - - - - 35 V -
RS Stock No. 313-5339
Mfr. Part No.14X1EA1GV1
BrandVega
TWD8,497.00
Each
units
Relative 0bar 6bar 0.3 % - Fluid, Gas, Vapour G1/2 4 → 20 mA DIN 43650 Connector - - - 12 → 36 V dc -
RS Stock No. 313-5317
Mfr. Part No.14X1AA1GV1
BrandVega
TWD8,497.00
Each
units
Relative 0bar 1bar 0.3 % - Fluid, Gas, Vapour G1/2 4 → 20 mA DIN 43650 Connector - - - 12 → 36 V dc -
New
RS Stock No. 206-7029
Mfr. Part No.PP - 222 4NP
BrandVega
TWD11,119.00
Each
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Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7028
Mfr. Part No.PP - 222 2GV
BrandVega
TWD9,831.00
Each
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Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
RS Stock No. 313-5351
Mfr. Part No.14X1HA1GV1
BrandVega
TWD8,656.00
Each
units
Relative 0bar 25bar 0.3 % - Fluid, Gas, Vapour G1/2 4 → 20 mA DIN 43650 Connector - - - 12 → 36 V dc -
New
RS Stock No. 206-7045
Mfr. Part No.PP - 222 BH2
BrandVega
TWD11,248.00
Each
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Relative -1bar 1000bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7035
Mfr. Part No.PP - 222 3RN
BrandVega
TWD11,119.00
Each
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Relative -1bar 1000bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link
New
RS Stock No. 206-7047
Mfr. Part No.PP - 222 65D
BrandVega
TWD13,437.00
Each
units
Relative -1bar 1000bar 0.3 % Analogue Gas, Vapour - - - - - - 35 V IO-Link