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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Description Prix 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
N° de stock RS 828-5782
MarqueRS PRO
271,14 €
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Relative 0bar 0.1bar <±0.25 % Voltage Sewage, Viscous Fluid, Water - G3/4 0 → 10 V M12 Connector - - 6 mA 14 → 32 V dc
N° de stock RS 797-5005
MarqueRS PRO
161,63 €
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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
N° de stock RS 797-5018
MarqueRS PRO
161,63 €
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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
N° de stock RS 828-5707
MarqueRS PRO
214,68 €
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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
N° de stock RS 828-5757
MarqueRS PRO
271,14 €
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Relative 0bar 500mbar <±0.25 % Current Sewage, Viscous Fluid, Water - G3/4 4 → 20 mA M12 Connector - - 28 mA 9 → 32 V dc
N° de stock RS 828-5710
MarqueRS PRO
177,84 €
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Relative 0bar 0.1bar <±0.25 % Current Oil, Water - G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA 9 → 32 V dc
N° de stock RS 828-5726
MarqueRS PRO
177,84 €
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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
N° de stock RS 102-4130
MarqueRS PRO
250,67 €
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Relative 0bar 40bar ±0.25 % Analogue Gas, Liquid - G1/4 4 → 20 mA DIN 43650 Type A - - - 9 → 32 V dc
N° de stock RS 828-5713
MarqueRS PRO
177,84 €
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Relative 0bar 0.1bar <±0.25 % Voltage Oil, Water - G1/4 0.5 → 4.5 V DIN 43650 Type A - - 6 mA 9 → 32 V dc
N° de stock RS 123-5233
MarqueRS PRO
361,25 €
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Relative 0bar 6bar ±0.25 % Analogue Air, Hydraulic Fluid, Liquid, Non-Aggressive Gas, Oil, Water - G1/4 0 → 5 V, 4 → 20 mA Battery - - - -
N° de stock RS 797-4961
MarqueRS PRO
161,63 €
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Relative -1bar 24bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - G1/4 0 → 5 V DIN 43650 Type C - - - 9 → 32 V dc
N° de stock RS 828-5824
MarqueRS PRO
203,14 €
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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
N° de stock RS 828-5754
MarqueRS PRO
271,14 €
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Relative 0bar 0.1bar <±0.25 % Current Sewage, Viscous Fluid, Water - G3/4 4 → 20 mA M12 Connector - - 28 mA 9 → 32 V dc
N° de stock RS 828-5833
MarqueRS PRO
203,14 €
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Absolute 0bar 5bar <±0.25 % Current Water - G3/4 4 → 20 mA M12 Connector - - 28 mA 9 → 32 V dc
N° de stock RS 102-4153
MarqueRS PRO
429,88 €
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Relative 0bar 50mbar ±0.25 % Analogue Oil - G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA 9 → 32 V dc
N° de stock RS 102-4134
MarqueRS PRO
514,33 €
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Relative 0bar 0.1bar ±0.25 % Analogue Grey Water, Sewage, Viscous Fluid - G3/4 4 → 20 mA M12 4-pin - - 28 mA 12 → 28 V dc
N° de stock RS 123-5244
MarqueRS PRO
523,82 €
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Relative 0bar 0.1bar ±0.25 % Analogue Air, Hydraulic Fluid, Liquid, Non-Aggressive Gas, Oil, Water - G1/4 0 → 5 V, 4 → 20 mA Battery - - - -
N° de stock RS 828-5820
MarqueRS PRO
203,14 €
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Absolute 0bar 1bar <±0.25 % Current Sewage, Viscous Fluid, Water - G3/4 4 → 20 mA M12 Connector - - 28 mA 9 → 32 V dc
N° de stock RS 828-5701
MarqueRS PRO
177,84 €
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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
N° de stock RS 828-5690
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239,76 €
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Absolute 0bar 500mbar ±0.5 % Current Oil, Water - G1/4 4 → 20 mA DIN 43650 Type A - - 28 mA 9 → 32 V dc