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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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. 518-4428
FabrikantRS PRO
€ 120,54
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Aantal stuks
Gauge 0bar 6bar ≤0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - ≤3 ms - 10 → 30 V dc
RS-stocknr. 797-4973
FabrikantRS PRO
€ 166,48
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Relative 0bar 400bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 5 V DIN 43650 Type C - - - 9 → 32 V dc
RS-stocknr. 828-5833
FabrikantRS PRO
€ 209,23
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Aantal stuks
Absolute 0bar 5bar <±0.25 % Current Water - G3/4 4 → 20 mA M12 Connector - - 28 mA 9 → 32 V dc
RS-stocknr. 797-5030
FabrikantRS PRO
€ 166,48
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Relative 0bar 25bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 5 V DIN 43650 Type C - - - 9 → 32 V dc
RS-stocknr. 828-5741
FabrikantRS PRO
€ 137,56
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Aantal stuks
Relative 0bar 16bar <±0.25 % Current Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 4 → 20 mA DIN 43650 Type C - - 20 mA 9 → 32 V dc
RS-stocknr. 797-5009
FabrikantRS PRO
€ 166,48
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Relative 0bar 6bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 100 mV DIN 43650 Type C - - - 3 → 12 V dc
RS-stocknr. 828-5811
FabrikantRS PRO
€ 206,83
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Relative -1bar 1bar <±0.25 % Current Sewage, Viscous Fluid, Water - G3/4 4 → 20 mA M12 Connector - - 28 mA 9 → 32 V dc
RS-stocknr. 123-5241
FabrikantRS PRO
€ 372,09
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Relative 0bar 250bar ±0.25 % Analogue Air, Hydraulic Fluid, Liquid, Non-Aggressive Gas, Oil, Water - G1/4 0 → 5 V, 4 → 20 mA Wireless - - - -
RS-stocknr. 123-5243
FabrikantRS PRO
€ 669,05
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Relative 0bar 50mbar ±0.25 % Analogue Air, Hydraulic Fluid, Liquid, Non-Aggressive Gas, Oil, Water - G1/4 0 → 5 V, 4 → 20 mA Wireless - - - -
RS-stocknr. 518-4478
FabrikantRS PRO
€ 120,54
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Gauge 0bar 40bar ≤0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - ≤3 ms - 10 → 30 V dc
RS-stocknr. 797-5005
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€ 166,48
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Relative 0bar 100bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 5 V DIN 43650 Type C - - - 9 → 32 V dc
RS-stocknr. 828-5795
FabrikantRS PRO
€ 206,83
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Relative 0bar 10bar <±0.25 % Voltage Sewage, Viscous Fluid, Water - G3/4 0 → 10 V M12 Connector - - 6 mA 14 → 32 V dc
RS-stocknr. 102-4145
FabrikantRS PRO
€ 403,17
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Relative -1bar 1bar ±0.25 % Analogue Grey Water, Sewage, Viscous Fluid - G3/4 4 → 20 mA M12 4-pin - - 28 mA 12 → 28 V dc
RS-stocknr. 102-4125
FabrikantRS PRO
€ 276,68
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Relative -1bar 9bar ±0.25 % Analogue Gas, Liquid - G1/4 4 → 20 mA DIN 43650 Type A - - - 9 → 32 V dc
RS-stocknr. 521-5342
FabrikantRS PRO
€ 120,54
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Gauge 0bar 60bar ≤0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - ≤3 ms - 10 → 30 V dc
RS-stocknr. 797-4964
FabrikantRS PRO
€ 166,48
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Relative 0bar 16bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 100 mV DIN 43650 Type C - - - 3 → 12 V dc
RS-stocknr. 518-4456
FabrikantRS PRO
€ 117,29
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Aantal stuks
Relative 0bar 16bar ≤0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - ≤3 ms - 10 → 30 V dc
RS-stocknr. 102-4140
FabrikantRS PRO
€ 403,17
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Aantal stuks
Relative 0bar 10bar ±0.25 % Analogue Grey Water, Sewage, Viscous Fluid - G3/4 4 → 20 mA M12 4-pin - - 28 mA 12 → 28 V dc
RS-stocknr. 797-5033
FabrikantRS PRO
€ 166,48
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Relative 0bar 40bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 5 V DIN 43650 Type C - - - 9 → 32 V dc
RS-stocknr. 518-4434
FabrikantRS PRO
€ 120,54
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Aantal stuks
Gauge 0bar 10bar ≤0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - ≤3 ms - 10 → 30 V dc