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.


...
Read more Read less

Filters

Viewing 1 - 20 of 34 products
Results per page
Description Price Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Calibrated Process Connection Analogue Output Electrical Connection Response Time Maximum Current Supply Voltage Interface
RS Stock No. 136-5986
Mfr. Part No.836P-D2NMGB20PA-D4
£279.00
Each
Units
Gauge 0bar 13.78bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5995
Mfr. Part No.836P-D2NMAA30PA-D4
£302.00
Each
Units
Absolute, Gauge - - ±1 % Analogue, PNP Gas, Liquid, Steam - - 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5987
Mfr. Part No.836P-D2NFGA60PA-D4
£279.00
Each
Units
Gauge 0bar 4.13bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5996
Mfr. Part No.836P-D2GFGC80PA-D4
£279.00
Each
Units
Gauge 0bar 551.58bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5988
Mfr. Part No.836P-D2NMGB14PA-D4
£279.00
Each
Units
Gauge 0bar 9.99bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5991
Mfr. Part No.836P-D2NMGA20PA-D4
£279.00
Each
Units
Absolute, Gauge - - ±1 % Analogue, PNP Gas, Liquid, Steam - - 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5997
Mfr. Part No.836P-D2NFGB20PA-D4
£279.00
Each
Units
Gauge 0bar 13.78bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5973
Mfr. Part No.836P-D2SFGC58PA-D4
£279.00
Each
Units
Gauge 0bar 399.89bar ±1 % Analogue, PNP Gas, Liquid, Steam - UNF 7/16 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5989
Mfr. Part No.836P-D2NMAB20PA-D4
£302.00
Each
Units
Absolute 0bar 13.78bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5971
Mfr. Part No.836P-D2NFGC58PA-D4
£279.00
Each
Units
Gauge 0bar 400bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-6001
Mfr. Part No.836P-D2NMAA60PA-D4
£302.00
Each
Units
Absolute 0bar 4.13bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5983
Mfr. Part No.836P-D2NFGB14PA-D4
£279.00
Each
Units
Gauge 0bar 9.99bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5992
Mfr. Part No.836P-D2NFGA30PA-D4
£279.00
Each
Units
Absolute, Gauge - - ±1 % Analogue, PNP Gas, Liquid, Steam - - 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-6003
Mfr. Part No.836P-D2GMGC36PA-D4
£279.00
Each
Units
Gauge 0bar 248.21bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5974
Mfr. Part No.836P-D2NFGA14PA-D4
£279.00
Each
Units
Gauge 0bar 1bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5985
Mfr. Part No.836P-D2NMGC30PA-D4
£279.00
Each
Units
Absolute, Gauge - - ±1 % Analogue, PNP Gas, Liquid, Steam - - 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5994
Mfr. Part No.836P-D2GFGC10PA-D4
£279.00
Each
Units
Absolute, Gauge - - ±1 % Analogue, PNP Gas, Liquid, Steam - - 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5981
Mfr. Part No.836P-D2GFGB36PA-D4
£279.00
Each
Units
Gauge 0bar 25bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5990
Mfr. Part No.836P-D2NFGC10PA-D4
£279.00
Each
Units
Absolute, Gauge - - ±1 % Analogue, PNP Gas, Liquid, Steam - - 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link
RS Stock No. 136-5972
Mfr. Part No.836P-D2GFGC58PA-D4
£279.00
Each
Units
Gauge 0bar 399.89bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector - 450 mA 15 → 35 V dc IO-Link