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 374-8761
Référence fabricant787260
MarqueBurkert
25,13 €
Each
Unité
Differential 1bar 10bar - Relay Air, Hydraulic Fluid, Oil Emulsion, Water - G1/8 - Spade Terminal - - 2 A 42 V
N° de stock RS 177-5945
Référence fabricantSCX100DN
MarqueHoneywell
121,467 €
Each (In a Box of 25)
Unité
Differential 0psi 100psi ±1 % Wheatstone Bridge Pneumatic Fluid - - 0 → 100 mV Solder Tag - 100 μs - 20 V dc
N° de stock RS 455-5100
Référence fabricantSCX100DN
MarqueHoneywell
137,05 €
Each
Unité
Differential 0psi 100psi ±0.1 % Unamplified Pneumatic Fluid - - 99 → 101 mV Solder Tag - 100 ms - 20 V dc
N° de stock RS 181-1362
Référence fabricant24PCCFA2G
MarqueHoneywell
32,46 €
Each
Unité
Relative 0psi 15psi 0.2 % Wheatstone Bridge Nitrogen Gas, Oxygen, Water - - 0 → 225 mV Solder Tag - 1 ms - 2.5 → 12 V dc
N° de stock RS 535-1218
Référence fabricant5266100LBACTI
MarqueGems Sensors
198,30 €
Each
Unité
Differential -100Pa 100Pa ±1 % Analogue Air, Non-Conductive Gas - - 0 → 10 V Terminal Strip - 1 s - 24 V ac/dc
N° de stock RS 719-1080
Référence fabricantMPX5010DP
MarqueNXP
8,51 €
Each
Unité
- - - - - - - - - - - - - -
N° de stock RS 374-8799
Référence fabricant787265
MarqueBurkert
28,79 €
Each
Unité
Differential 1bar 10bar - Relay Air, Hydraulic Fluid, Oil Emulsion, Water - G1/4 - Spade Terminal - - - -
N° de stock RS 922-7324
Référence fabricantMPX5010DP
MarqueNXP
11,437 €
Each (In a Tray of 20)
Unité
Differential 0bar 10kPa ±5 % Analogue Air, Fluid - - 4.7 V PCB Mount - 1 ms - 4.75 → 5.25 V dc
N° de stock RS 828-5782
MarqueRS PRO
271,14 €
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Unité
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 455-4589
Référence fabricant5000BGM7000GG000A001
MarqueGems Sensors
589,80 €
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Unité
Relative 25mbar 70mbar 0.2 % Analogue Sea Water - G1/4 4 → 20 mA DIN 43650 Type A - 5 ms - 9 → 35 V dc
N° de stock RS 123-6659
Référence fabricantX5072-TB-A1-CA-H1-PA 16.0 bar G
MarqueDruck
293,04 €
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Gauge - 16bar ±0.2 % Analogue Fluid RSCAL G1/4 4 → 20 mA DIN 43650 Type A - 10 ms 20 mA 7 → 28 V
N° de stock RS 169-8093
Référence fabricantADP51B61
MarquePanasonic
11,06 €
Each (In a Tube of 100)
Unité
Relative - - ±2.5 % Amplified Air - - 4 V PCB - - 10 mA -
N° de stock RS 836-9035
Référence fabricantADP51B61
MarquePanasonic
17,11 €
Each
Unité
Relative - - ±2.5 % Amplified Air - - 4 V PCB - - 10 mA -
N° de stock RS 173-2215
Référence fabricantSDP610-125PA
MarqueSensirion
22,843 €
Each (In a Tray of 80)
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Differential -125Pa 125Pa 3 % I2C Air, Nitrogen Gas, Oxygen Gas - 5.2 mm Tube - - - 4.6 ms <6 mA 3.6 V
N° de stock RS 123-7141
Référence fabricantSDP610-125Pa
MarqueSensirion
32,44 €
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Differential -125Pa 125Pa 3 % I2C Air, Nitrogen Gas, Oxygen Gas - 5.2 mm Tube - - - 4.6 ms <6 mA 3.6 V
N° de stock RS 746-3477
Référence fabricantX5072-TB-A1-CA-H1-PA 16.0 bar G
MarqueDruck
214,00 €
Each
Unité
Relative - 16bar ±0.2 % Analogue Fluid - G1/4 4 → 20 mA DIN 43650 Type A - 10 ms 20 mA 7 → 28 V
N° de stock RS 797-5005
MarqueRS PRO
161,63 €
Each
Unité
Relative 0bar 100bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water - BSP 1/4 0 → 5 V DIN 43650 Connector - - - 9 → 32 V dc
N° de stock RS 922-7392
Référence fabricantMPXV4006DP
MarqueNXP
12,225 €
Each (In a Tray of 25)
Unité
Differential 0bar 6kPa ±2.46 % Analogue Air, Fluid - - 4.8 V PCB Mount - - - 4.75 → 5.25 V dc
N° de stock RS 836-9032
Référence fabricantADP51B62
MarquePanasonic
14,93 €
Each
Unité
Relative - - ±2.5 % Amplified Air - - 4 V PCB - - 10 mA -
N° de stock RS 169-8092
Référence fabricantADP51B62
MarquePanasonic
9,64 €
Each (In a Tube of 100)
Unité
Relative - - ±2.5 % Amplified Air - - 4 V PCB - - 10 mA -