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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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 Supply Voltage Interface
RS Stock No. 124-1474
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879245
Brand :WIKA
THB4,882.08
Each
Units
- 0bar 400bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 x 1 - < 4 ms - 8 → 30 V dc -
RS Stock No. 124-1463
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879222
Brand :WIKA
THB5,008.44
Each
Units
- 0bar 10bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C - < 4 ms - 8 → 30 V dc -
RS Stock No. 725-5945
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.12719316
Brand :WIKA
THB5,227.64
Each
Units
Relative 0bar 40bar 0.5 % Current Hydraulic Fluid G1/4 4 → 20 mA - - - - 8 → 30 V dc -
RS Stock No. 124-1478
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879280
Brand :WIKA
THB5,108.61
Each
Units
- 0bar 400bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C - < 4 ms - 8 → 30 V dc -
RS Stock No. 190-9719
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9023550
Brand :WIKA
THB16,762.96
Each
Units
- 0bar 160bar ±0.5 % Current Adhesive, Contaminated Media, Crystallising, Particle-Laden, Paste-Like, Viscous G1/2 4 → 20 mA Angular connector DIN 175301-803 A - - 20 mA 10 → 30 V dc -
RS Stock No. 124-1473
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879278
Brand :WIKA
THB4,252.85
Each
Units
- 0bar 160bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C - < 4 ms - 8 → 30 V dc -
RS Stock No. 205-1270
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46967534
Brand :WIKA
THB4,001.89
Each
Units
Absolute 0bar 40bar 1 % PNP Air, Fluids, Gases - - - - - - 10 → 32 V IO-Link
RS Stock No. 124-1465
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879223
Brand :WIKA
THB4,252.85
Each
Units
- 0bar 16bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C - < 4 ms - 8 → 30 V dc -
RS Stock No. 124-1477
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879433
Brand :WIKA
THB10,713.01
Each
Units
- 0psi 4.26psi 0.25 % Analogue Liquid - 4 → 20 mA FEP Cable (5 metres) - - - 10 → 30 V dc -
RS Stock No. 205-1272
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46967539
Brand :WIKA
THB4,130.60
Each
Units
Absolute 0bar 250bar 1 % PNP Air, Fluids, Gases - - - - - - 10 → 32 V IO-Link
RS Stock No. 879-5481
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.8341155
Brand :WIKA
THB17,795.45
Each
Units
Relative 0psi 160psi ≤0.25 (BFSL) %, ≤0.5 (Limit Point Calibration) % Analogue Oil NPT 1/2 4 → 20 mA - - ≤1 ms - 10 → 30 V dc -
RS Stock No. 879-5059
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.52375455
Brand :WIKA
THB16,181.51
Each
Units
Absolute, Relative 0psi 5000psi 0.25 % Current Synthetic Oil NPT 1/2 4 → 20 mA - - 3 ms 25 mA 8 → 36 V dc -
RS Stock No. 124-1479
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879281
Brand :WIKA
THB4,882.08
Each
Units
- 0bar 250bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 x 1 - < 4 ms - 8 → 30 V dc -
RS Stock No. 190-9704
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9021272
Brand :WIKA
THB16,762.96
Each
Units
- 0bar 0.4bar ±0.5 % Current Adhesive, Contaminated Media, Crystallising, Particle-Laden, Paste-Like, Viscous - 4 → 20 mA Angular connector DIN 175301-803 A - - 20 mA 10 → 30 V dc -
RS Stock No. 190-9720
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9023569
Brand :WIKA
THB16,762.96
Each
Units
- 0bar 250bar ±0.5 % Current Adhesive, Contaminated Media, Crystallising, Particle-Laden, Paste-Like, Viscous G1/2 4 → 20 mA Angular connector DIN 175301-803 A - - 20 mA 10 → 30 V dc -
RS Stock No. 190-9702
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9083545
Brand :WIKA
THB16,762.96
Each
Units
- 0bar 0.16bar ±0.5 % Current Adhesive, Contaminated Media, Crystallising, Particle-Laden, Paste-Like, Viscous - 4 → 20 mA Angular connector DIN 175301-803 A - - 20 mA 10 → 30 V dc -
RS Stock No. 124-1472
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879359
Brand :WIKA
THB9,342.10
Each
Units
- 0bar 6bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A - < 2 ms - 10 → 30 V dc -
RS Stock No. 190-9705
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9021280
Brand :WIKA
THB16,762.96
Each
Units
- 0bar 0.6bar ±0.5 % Current Adhesive, Contaminated Media, Crystallising, Particle-Laden, Paste-Like, Viscous - 4 → 20 mA Angular connector DIN 175301-803 A - - 20 mA 10 → 30 V dc -
RS Stock No. 124-1486
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46882608
Brand :WIKA
THB6,893.04
Each
Units
- 0bar 6bar 0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A - < 3 ms - 8 → 35 V dc -
RS Stock No. 190-9714
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9021248
Brand :WIKA
THB20,055.29
Each
Units
- 0bar 16bar ±0.5 % Current Adhesive, Contaminated Media, Crystallising, Particle-Laden, Paste-Like, Viscous G1/2 4 → 20 mA Angular connector DIN 175301-803 A - - 20 mA 10 → 30 V dc -