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 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 - Like 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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Omschrijving Prijs 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-stocknr. 518-4327
Fabrikantnummer401006/000-488-405-502-20-61/000
FabrikantJumo
198,39 €
Each
Aantal stuks
Absolute - 1bar 0.5 % - Hydraulic Fluid, Pneumatic Fluid - G1/4 4 → 20 mA DIN 43650 Type A - - - 15 → 30 V dc
RS-stocknr. 424-5803
Fabrikantnummer404366/000-456-405-573-20-61/000
FabrikantJumo
304,20 €
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Aantal stuks
Relative 0bar 2.5bar 0.5 % Analogue Fluid, Gas - G1/2 4 → 20 mA DIN 43650 Type A - - - 10 → 30 V dc
RS-stocknr. 745-1382
FabrikantnummerB58611K1100A003
FabrikantEPCOS
41,99 €
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Aantal stuks
Relative 0bar 0.1bar ±1 % - Fluid, Gas - - - PCB Mount - - - 10 V
RS-stocknr. 374-8812
Fabrikantnummer787267
FabrikantBurkert
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Differential 10bar 70bar - Relay Air, Hydraulic Fluid, Oil Emulsion, Water - G1/4 - Spade Terminal - - - -
RS-stocknr. 136-5081
Fabrikantnummer3200B0400S05BR00
FabrikantGems Sensors
130,65 €
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Relative 0bar 400bar - Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil - G1/4 4 → 20 mA 9.4 mm DIN Connector - 1 ms 2 (Sink & Source) mA 8 → 30 V dc
RS-stocknr. 176-7894
FabrikantnummerXMLP100PP730
171,85 €
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Aantal stuks
- 0psi 100psi ±0.5 (Measurement) %, 0.1 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - - 0 → 10 V 3 Pin Male Connector - ≤2 ms 7 mA 24 V dc
RS-stocknr. 836-9017
FabrikantnummerADP5161
FabrikantPanasonic
35,75 €
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Aantal stuks
Relative - - ±1.25 % Amplified Air - - 4.5 V PCB - - 10 mA 5 V dc
RS-stocknr. 835-3891
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Fabrikantifm electronic
101,30 €
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Relative 0bar 25bar ±0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - 1 ms - 8.5 → 36 V dc
RS-stocknr. 835-2848
FabrikantnummerXMLR010G1P25
298,00 €
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Aantal stuks
Differential 0bar 10bar ≤0.1 % Analogue, 1 x PNP Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid - G1/4 4 → 20 mA M12 Connector - ≤10 (Analogue) ms, ≤5 (Discrete) ms ≤50 mA 24 V dc
RS-stocknr. 286-709
Fabrikantnummer26PCDFA6D
FabrikantHoneywell
40,79 €
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Differential 0psi 30psi ±0.25 % Unamplified Nitrogen Gas, Oxygen - - 97 → 103 mV PCB - 1 ms - 10 V dc
RS-stocknr. 146-5286
FabrikantnummerXMLP400BD71F
125,00 €
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Differential - 1200bar ±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-stocknr. 797-5052
FabrikantRS PRO
166,48 €
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Relative 0bar 25bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 100 mV DIN 43650 Type C - - - 3 → 12 V dc
RS-stocknr. 162-2078
FabrikantnummerXMLP016BC21F
125,00 €
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Differential 0bar 16bar ±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-stocknr. 176-7922
FabrikantnummerXMLP3K0PP730
168,76 €
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Aantal stuks
- 0psi 3000psi ±0.5 (Measurement) %, 0.1 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - - 0 → 10 V 3 Pin Male Connector - ≤2 ms 7 mA 24 V dc
RS-stocknr. 169-7643
FabrikantnummerPBN1B332-R6
FabrikantHoneywell
1.331,43 €
1 Box of 25
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Relative 24.9mbar 124.5mbar - Relay Air - - - Tab - - 40 mA 30 V ac/dc
RS-stocknr. 200-6099
Fabrikantnummer325534009-50
FabrikantTE Connectivity
18,082 €
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Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 125-1316
FabrikantnummerPN2571
Fabrikantifm electronic
361,60 €
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Aantal stuks
Relative 0bar 250bar <±0.4 % Analogue + PNP-NO/NC Programmable Fluid - G1/4 0 → 10 V, 4 → 20 mA M12 Connector IO-LINK <1.5 (Minimum Switching Output) ms, <3 (Maximum Analogue Output) ms 250 mA 18 → 30 V dc
RS-stocknr. 125-1275
FabrikantnummerPN3092
Fabrikantifm electronic
343,70 €
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Aantal stuks
Relative 0bar 100bar ±0.5 % Analogue + PNP-NO/NC Programmable Fluid - G1/4 0 → 10 V, 4 → 20 mA M12 Connector IO-LINK <3 (Maximum Analogue Output) ms, <3 (Minimum Switching Output) ms 150 mA @ +60 °C, 200 mA @ +60 °C, 250 mA @ +40 °C 18 → 30 V dc
RS-stocknr. 746-3470
FabrikantnummerX5072-TB-A1-CA-H1-PA 10.0 bar G
FabrikantDruck
218,00 €
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Aantal stuks
Relative - 10bar ±0.2 % Analogue Fluid - G1/4 4 → 20 mA DIN 43650 Type A - 10 ms 20 mA 7 → 28 V
RS-stocknr. 175-4995
FabrikantRS PRO
148,42 €
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Aantal stuks
Relative 0bar 250bar ±0.25 % Analogue - - G1/4 4 → 20 mA M12 4-pin - - 20 mA 9 → 32 V dc