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 Price Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Calibrated Process Connection Analogue Output Electrical Connection Response Time Maximum Current Supply Voltage Interface
RS Stock No. 914-8390
Mfr. Part No.DP102EP
BrandPanasonic
kr 1 077,87
Each
Units
Gauge -0.1MPa 1MPa ±1 % Relay Non-Corrosive Gas - G1/8 100 mA Wire Lead 2.5 ms - 12 → 24 V dc -
RS Stock No. 914-8369
Mfr. Part No.DP101EP
BrandPanasonic
kr 1 077,87
Each
Units
Gauge -100kPa 100kPa ±1 % Relay Non-Corrosive Gas - G1/8 100 mA Wire Lead 2.5 ms - 12 → 24 V dc -
RS Stock No. 914-8378
Mfr. Part No.DP102
BrandPanasonic
kr 1 077,87
Each
Units
Gauge -0.1MPa 1MPa - PNP-NO/NC Non-Corrosive Gas - G1/8 - Wire Lead 5000 ms 100 mA 12 → 24 V dc -
RS Stock No. 914-8413
Mfr. Part No.DP112EPJ
BrandPanasonic
kr 1 240,57
Each
Units
Gauge -0.1MPa 1MPa ±1 % Relay Non-Corrosive Gas - G1/8 100 mA Wire Lead 2.5 ms - 12 → 24 V dc -
RS Stock No. 914-8322
Mfr. Part No.DP-101A-M-P
BrandPanasonic
kr 1 179,56
Each
Units
Gauge -100kPa 100kPa - PNP Non-Corrosive Gas - G1/8 1 5 V dc, 4 20 mA Wire Lead 5000 ms 100 mA 12 24 V dc -
RS Stock No. 914-8366
Mfr. Part No.DP101N
BrandPanasonic
kr 1 077,87
Each
Units
Gauge -0.1MPa 0.1MPa - NPN-NO/NC Non-Corrosive Gas - NPT 1/8 - Wire Lead 5000 ms 100 mA 12 24 V dc -
RS Stock No. 169-8085
Mfr. Part No.ADP42510
BrandPanasonic
kr 140,753
Each (In a Tube of 100)
Units
Gauge - - ±0.3 % Voltage Air, Fluid - - 100±40 mV PCB - 1.5 mA - -
RS Stock No. 914-8381
Mfr. Part No.DP102AEP
BrandPanasonic
kr 1 199,90
Each
Units
Gauge -0.1MPa 1MPa ±1 % Relay Non-Corrosive Gas - G1/8 0.6 → 5 V, 2.4 → 20 mA Wire Lead 2.5 ms - 12 → 24 V dc -
RS Stock No. 914-8417
Mfr. Part No.DP-001
BrandPanasonic
kr 935,51
Each
Units
Gauge -0.1MPa 0.1MPa - NPN-NO/NC Air, Non-Corrosive Gas - G1/8 - Wire Lead 250 ms 50 mA 12 → 24 V dc -
RS Stock No. 914-8334
Mfr. Part No.DP-102-M-P
BrandPanasonic
kr 1 057,54
Each
Units
Gauge -0.1MPa 1MPa - PNP Non-Corrosive Gas - G1/8 - Wire Lead 5000 ms 100 mA 12 → 24 V dc -
RS Stock No. 836-9035
Mfr. Part No.ADP51B61
BrandPanasonic
kr 170,59
Each
Units
Gauge - - ±2.5 % Amplified Air - - 4 V PCB - 10 mA - -
RS Stock No. 914-8372
Mfr. Part No.DP102A
BrandPanasonic
kr 1 199,90
Each
Units
Gauge -0.1MPa 1MPa - Analogue + PNP-NO/NC Programmable Non-Corrosive Gas - G1/8 0.6 → 5 V, 2.4 → 20 mA Wire Lead 5000 ms 100 mA 12 → 24 V dc -
RS Stock No. 836-8966
Mfr. Part No.ADP42510
BrandPanasonic
kr 154,83
Each
Units
Gauge - - ±0.3 % Voltage Air, Fluid - - 100±40 mV PCB - 1.5 mA - -
RS Stock No. 914-8331
Mfr. Part No.DP-102-FE-P
BrandPanasonic
kr 1 271,08
Each
Units
Gauge -0.1MPa 1MPa - PNP Non-Corrosive Gas - G1/8 - Wire Lead 5000 ms 100 mA 12 24 V dc -
RS Stock No. 836-9004
Mfr. Part No.ADP51A11
BrandPanasonic
kr 104,78
Each
Units
Gauge - - ±4 % Amplified Air - - 2.4 V PCB - 3 mA 5 V dc -
RS Stock No. 914-8423
Mfr. Part No.DP-002-P
BrandPanasonic
kr 935,51
Each
Units
Gauge 1MPa 0MPa - PNP Air, Non-Corrosive Gas - G1/8 - Wire Lead 250 ms 50 mA 12 → 24 V dc -
RS Stock No. 169-8087
Mfr. Part No.ADP51A11
BrandPanasonic
kr 95,225
Each (In a Tube of 100)
Units
Gauge - - ±4 % Amplified Air - - 2.4 V PCB - 3 mA 5 V dc -
RS Stock No. 914-8338
Mfr. Part No.DP-102A-M-P
BrandPanasonic
kr 1 199,90
Each
Units
Gauge -0.1MPa 1MPa - PNP Non-Corrosive Gas - G1/8 0.6 → 5 V, 2.4 → 20 mA Wire Lead 5000 ms 100 mA 12 → 24 V dc -
RS Stock No. 914-8401
Mfr. Part No.DP111EPJ
BrandPanasonic
kr 1 240,57
Each
Units
Gauge -100kPa 100kPa ±1 % Relay Non-Corrosive Gas - G1/8 100 mA Wire Lead 2.5 ms - 12 → 24 V dc -
RS Stock No. 169-8092
Mfr. Part No.ADP51B62
BrandPanasonic
kr 46,512
Each (In a Tube of 100)
Units
Gauge - - ±2.5 % Amplified Air - - 4 V PCB - 10 mA - -