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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Description Price 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 Supply Voltage Interface
RS Stock No. 452-8883
Mfr. Part No.401001/000-459-405-502-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
Gauge 0bar 10bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA Wire Lead - ≤3 ms - 10 → 30 V dc -
RS Stock No. 463-5565
Mfr. Part No.401001/000-457-405-523-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
- 0bar 4bar 0.5 % - Hydraulic Fluid, Pneumatic Fluid G1/2 4 → 20 mA DIN 43650 Connector - - - 15 → 30 V dc -
RS Stock No. 463-5739
Mfr. Part No.401001/000-461-405-523-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
- 0bar 25bar 0.5 % - Hydraulic Fluid, Pneumatic Fluid G1/2 4 → 20 mA DIN 43650 Connector - - - 15 → 30 V dc -
RS Stock No. 668-3011
Mfr. Part No.401010/000-459-405-502-20-61/000
BrandJumo
MYR1,088.22
Each
units
Relative 0bar 10bar - Analogue Air G1/4 4 → 20 mA DIN 43650 Connector - 5 ms - 8 → 30 V dc -
RS Stock No. 186-012
Mfr. Part No.401050/000-455-405-593-68-601-36/000
BrandJumo
MYR1,531.65
Each
units
Differential 0bar 1.6bar - - Fluid, Gas G1/8 4 → 20 mA M12 Connector - - - 10 → 30 V dc -
RS Stock No. 463-5767
Mfr. Part No.404366/000-488-405-504-20-61/000
BrandJumo
MYR1,706.33
Each
units
Absolute 0bar 1bar 2 % Analogue Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 463-5717
Mfr. Part No.401001/000-459-405-523-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
- 0bar 10bar 0.5 % - Hydraulic Fluid, Pneumatic Fluid G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 410-6231
Mfr. Part No.404304/000-414-406-02-298
BrandJumo
MYR1,660.81
Each
units
Differential, Gauge 0bar 0.1bar - Analogue Non-Aggressive Gas 6 mm Tube 4 → 20 mA M12 Connector - - - 230 V ac -
RS Stock No. 613-7726
Mfr. Part No.404366/000-463-405-504-20-61/000
BrandJumo
MYR1,886.65
Each
units
Relative 0bar 60bar - - Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 430-9711
Mfr. Part No.401001/000-460-405-502-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
Relative 0bar 16bar - - - G1/4 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 424-5730
Mfr. Part No.404366/000-456-405-504-20-61/000
BrandJumo
MYR1,696.81
Each
units
Relative 0bar 2.5bar 0.2 % Analogue Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 668-3020
Mfr. Part No.401010/000-461-405-502-20-61/000
BrandJumo
MYR1,243.72
Each
units
Relative -1bar 24bar - Analogue Air G1/4 4 → 20 mA DIN 43650 Connector - 5 ms - 8 → 30 V dc -
RS Stock No. 435-9918
Mfr. Part No.401001/000-457-405-502-20-601-36/000
BrandJumo
MYR1,014.42
Each
units
- 0bar 4bar - - - G1/4 - M12 Connector - - - 10 → 30 V dc -
RS Stock No. 463-5420
Mfr. Part No.401001/000-482-405-523-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
- -1bar 5bar - - - G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 463-5723
Mfr. Part No.401001/000-460-405-523-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
- 0bar 16bar 0.5 % - Hydraulic Fluid, Pneumatic Fluid G1/2 4 → 20 mA DIN 43650 Connector - - - 15 → 30 V dc -
RS Stock No. 463-5616
Mfr. Part No.404366/000-467-405-504-20-61/000
BrandJumo
MYR1,672.87
Each
units
Relative 0bar 400bar 0.5 % Analogue Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 430-9828
Mfr. Part No.401001/000-457-405-502-20-601-61/000
BrandJumo
MYR1,014.42
Each
units
- 0bar 4bar - - - G1/4 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 518-4355
Mfr. Part No.401006/000-493-405-502-20-61/000
BrandJumo
MYR1,397.77
Each
units
Absolute 1bar 400bar 0.5 % - Hydraulic Fluid, Pneumatic Fluid G1/4 4 → 20 mA DIN 43650 Connector - - - 15 → 30 V dc -
RS Stock No. 463-5701
Mfr. Part No.401001/000-458-405-523-20-601-61/000
BrandJumo
MYR1,002.74
Each
units
- 0bar 6bar - - - G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 424-5752
Mfr. Part No.404366/000-460-405-504-20-61/000
BrandJumo
MYR1,913.65
Each
units
Relative 0bar 16bar 0.5 % Analogue Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -