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 Process Connection Analogue Output Electrical Connection Communication Protocol Response Time Maximum Current Series Supply Voltage
RS-stocknr. 797-4983
FabrikantRS PRO
€ 141,25
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Aantal stuks
Relative 0bar 1bar ±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. 797-5011
FabrikantRS PRO
€ 138,30
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Aantal stuks
Relative 0bar 6bar ±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. 797-5046
FabrikantRS PRO
€ 141,25
Each
Aantal stuks
Relative 0bar 6bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 0 → 5 V DIN 43650 Type C - - - - 9 → 32 V dc
RS-stocknr. 797-5037
FabrikantRS PRO
€ 141,25
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Aantal stuks
Relative 0bar 10bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 0 → 5 V DIN 43650 Type C - - - - 9 → 32 V dc
RS-stocknr. 828-5726
FabrikantRS PRO
€ 190,51
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Relative 0bar 0.25bar <±0.25 % Voltage Oil, Water G1/4 0.5 → 4.5 V DIN 43650 Type A - - 6 mA - 9 → 32 V dc
RS-stocknr. 797-5027
FabrikantRS PRO
€ 141,25
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Relative 0bar 40bar ±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. 828-5701
FabrikantRS PRO
€ 230,04
Each
Aantal stuks
Relative 0bar 50mbar <±0.25 % Voltage Oil, Water G1/4 0.5 → 4.5 V DIN 43650 Type A - - 6 mA - 9 → 32 V dc
RS-stocknr. 828-5729
FabrikantRS PRO
€ 183,18
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Relative 0bar 500mbar <±0.25 % Current Oil, Water G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA - 9 → 32 V dc
RS-stocknr. 828-5824
FabrikantRS PRO
€ 209,23
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Absolute 0bar 2bar <±0.25 % Current Sewage, Viscous Fluid, Water G3/4 4 → 20 mA M12 Connector - - 28 mA - 9 → 32 V dc
RS-stocknr. 828-5717
FabrikantRS PRO
€ 230,04
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Aantal stuks
Relative 0bar 0.25bar <±0.25 % Current Oil, Water G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA - 9 → 32 V dc
RS-stocknr. 797-5018
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€ 141,25
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Relative 0bar 10bar ±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. 828-5707
FabrikantRS PRO
€ 285,20
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Relative 0bar 50mbar <±0.25 % Current Oil, Water G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA - 9 → 32 V dc
RS-stocknr. 797-5009
FabrikantRS PRO
€ 173,14
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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. 518-4412
FabrikantRS PRO
€ 221,44
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Relative 0bar 4bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS-stocknr. 518-4428
FabrikantRS PRO
€ 125,36
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Gauge 0bar 6bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS-stocknr. 828-5741
FabrikantRS PRO
€ 137,56
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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. 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. 518-4490
FabrikantRS PRO
€ 221,44
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Gauge 0bar 2.5bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS-stocknr. 828-5732
FabrikantRS PRO
€ 183,18
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Relative 0bar 0.75bar <±0.25 % Current Oil, Water G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA - 9 → 32 V dc
RS-stocknr. 518-4462
FabrikantRS PRO
€ 125,36
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Gauge 0bar 25bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc