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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กำลังดูสินค้า 1 - 20 รายการจาก 2005 รายการ / Viewing 1 - 20 of 2005 products
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รายละเอียดสินค้า / Description ราคา / 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 Series Supply Voltage
RS Stock No. 797-5037
Brand :RS PRO
THB6,471.89
Each
Units
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 Stock No. 797-5018
Brand :RS PRO
THB7,557.84
Each
Units
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 Stock No. 828-5741
Brand :RS PRO
THB5,756.29
Each
Units
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 Stock No. 828-5701
Brand :RS PRO
THB8,327.47
Each
Units
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 Stock No. 102-4145
Brand :RS PRO
THB19,086.63
Each
Units
Relative -1bar 1bar ±0.25 % Analogue Grey Water, Sewage, Viscous Fluid G3/4 4 → 20 mA M12 4-pin - - 28 mA - 12 → 28 V dc
RS Stock No. 518-4412
Brand :RS PRO
THB4,996.84
Each
Units
Relative 0bar 4bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS Stock No. 518-4434
Brand :RS PRO
THB4,996.84
Each
Units
Gauge 0bar 10bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS Stock No. 797-5015
Brand :RS PRO
THB7,955.37
Each
Units
Relative 0bar 25bar ±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 Stock No. 102-4125
Brand :RS PRO
THB10,580.22
Each
Units
Relative -1bar 9bar ±0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 43650 Type A - - - - 9 → 32 V dc
RS Stock No. 797-4955
Brand :RS PRO
THB7,955.37
Each
Units
Relative 0bar 400bar ±0.25 % Current Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 4 → 20 mA DIN 43650 Type A - - 20 mA - 9 → 32 V dc
RS Stock No. 518-4406
Brand :RS PRO
THB4,996.84
Each
Units
Gauge 0bar 1.6bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS Stock No. 123-5234
Brand :RS PRO
THB15,899.92
Each
Units
Relative -1bar 9bar ±0.25 % Analogue Air, Hydraulic Fluid, Liquid, Non-Aggressive Gas, Oil, Water G1/4 0 → 5 V, 4 → 20 mA Wireless - - - IWPT -
RS Stock No. 102-4126
Brand :RS PRO
THB5,987.89
Each
Units
Relative 0bar 10bar ±0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 43650 Type A - - - - 9 → 32 V dc
RS Stock No. 102-4124
Brand :RS PRO
THB11,662.84
Each
Units
Relative 0bar 6bar ±0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 43650 Type A - - - - 9 → 32 V dc
RS Stock No. 518-4428
Brand :RS PRO
THB4,996.84
Each
Units
Gauge 0bar 6bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS Stock No. 518-4462
Brand :RS PRO
THB5,211.09
Each
Units
Gauge 0bar 25bar ≤0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - ≤3 ms - - 10 → 30 V dc
RS Stock No. 797-4973
Brand :RS PRO
THB7,955.37
Each
Units
Relative 0bar 400bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 0 → 5 V DIN 43650 Type C - - - - 9 → 32 V dc
RS Stock No. 797-5033
Brand :RS PRO
THB7,955.37
Each
Units
Relative 0bar 40bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 0 → 5 V DIN 43650 Type C - - - - 9 → 32 V dc
RS Stock No. 797-5052
Brand :RS PRO
THB7,557.84
Each
Units
Relative 0bar 25bar ±0.25 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 0 → 100 mV DIN 43650 Type C - - - - 3 → 12 V dc
RS Stock No. 797-5046
Brand :RS PRO
THB7,570.22
Each
Units
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