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 1141 - 1160 of 1467 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 Communication Protocol Response Time Maximum Current Supply Voltage
RS Stock No. 146-5275
Mfr. Part No.XMLP025BC71F
£94.05
Each
Units
Differential - 25bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - G1/4 0 → 10 V 3-Pin EN 175301-803-A Male Connector - ≤2 ms <7 mA 24 V dc
New
RS Stock No. 206-7034
Mfr. Part No.PP - 222 AG6
BrandVega
£289.00
Each
Units
Relative -1bar 1000bar 0.3 % Analogue Gas, Vapour - - - - - - - 35 V
RS Stock No. 176-7889
Mfr. Part No.XMLP100BD11F
£97.00
Each
Units
- 0bar 100bar 0.1 %, ±0.5 (Measurement) % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - - 0.5 → 4.5 V 4 Pin M12 Male Connector - ≤2 ms 7 mA 5 V dc
New
RS Stock No. 205-1268
Mfr. Part No.46967528
BrandWIKA
£95.00
Each
Units
Absolute 0bar 6bar 1 % PNP Air, Fluids, Gases - - - - - - - 10 → 32 V
RS Stock No. 162-2090
Mfr. Part No.XMLP600BC21F
£99.00
Each
Units
Differential 0bar 600bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - - 4 → 20 mA 3-Pin Male Connector - 2 ms 20 mA 12 → 24 V dc
RS Stock No. 176-7911
Mfr. Part No.XMLP250BD11F
£87.00
Each
Units
- 0bar 250bar 0.1 %, ±0.5 (Measurement) % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - - 0.5 → 4.5 V 4 Pin M12 Male Connector - ≤2 ms 7 mA 5 V dc
New
RS Stock No. 206-7028
Mfr. Part No.PP - 222 2GV
BrandVega
£229.00
Each
Units
Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - - 35 V
New
RS Stock No. 202-3531
Mfr. Part No.MIPAF1XX500PSAAX
BrandHoneywell
£33.24
Each
Units
Sealed Gauge 174psi 500psi ±0.15 % Analogue Liquid Level - UNF 7/16 - - - - - 5 V dc
RS Stock No. 136-5993
Mfr. Part No.836P-D2NFGC20PA-D4
£293.00
Each
Units
Relative 0bar 137.89bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS Stock No. 162-2087
Mfr. Part No.XMLP250BC21F
£95.00
Each
Units
Differential 0bar 250bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - - 4 → 20 mA 3-Pin Male Connector - 2 ms 20 mA 12 → 24 V dc
RS Stock No. 136-5990
Mfr. Part No.836P-D2NFGC10PA-D4
£293.00
Each
Units
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS Stock No. 177-8863
Mfr. Part No.XMLP2D5GD21F
£96.00
Each
Units
- 0bar 2.5bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil - - 4 → 20 mA 4 Pin Male Connector M12 - <=2 ms 23 mA 12 → 24 V dc
RS Stock No. 146-5287
Mfr. Part No.XMLP600BD71F
£99.75
Each
Units
Differential - 1500bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - G1/4 0 → 10 V 4-Pin M12 Male Connector - ≤2 ms <7 mA 24 V dc
RS Stock No. 136-5087
Mfr. Part No.3200B0250S05ER00
£96.00
Each
Units
Relative 0bar 250bar - Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil - G1/4 4 → 20 mA 4-Pin M12 x 1 Connector - 1 ms 2 (Sink & Source) mA 8 → 30 V dc
RS Stock No. 136-5028
Mfr. Part No.3100R0700S01B000
£96.50
Each
Units
Relative 0bar 700bar 0.25 % Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil - G1/4 0 → 5 V 9.4 mm DIN Connector - 1 ms 2 (Sink & Source) mA 8 → 30 V dc
New
RS Stock No. 197-6889
Mfr. Part No.MPRSS0001PG00001C
BrandHoneywell
£4.303
Each (On a Reel of 160)
Units
Gauge 0bar 1bar ±0.25 %FSS BFSL Transistor Gas, Liquid - - - - - - - 3.6 V
RS Stock No. 136-6001
Mfr. Part No.836P-D2NMAA60PA-D4
£317.00
Each
Units
Absolute 0bar 4.13bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
New
RS Stock No. 206-7043
Mfr. Part No.PP - 222 2BM
BrandVega
£337.00
Each
Units
Relative -1bar 60bar 0.3 % Analogue Gas, Vapour - - - - - - - 35 V
RS Stock No. 135-3732
Mfr. Part No.XMLA020A2S13
£124.45
Each
Units
- 0bar 20bar 2 % 1CO Air, Fresh Water, Hydraulic Oil, Sea Water - - - 1/2 in 14 NPT - - 100 mA @ 250 V dc, 3 A @ 120 V ac 240 V ac, 250 V dc
RS Stock No. 179-9886
Mfr. Part No.XMLB300D2S12
£191.00
Each
Units
- 22bar 300bar <2 % - Hydraulic Oil - - - Screw Clamp Terminal - - 3 A 500 V