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. 399-1628
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMAV12L2135
THB3,827.31
Each
Units
Differential 1.3bar 12bar 3.5 % Relay Air, Fresh Water, Sea Water G1/4 - Screw Terminals - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc -
RS Stock No. 914-8347
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DP101
Brand :Panasonic
THB3,941.54
Each
Units
Relative - - - NPN-NO/NC Non-Corrosive Gas G1/8 - Wire Lead - 5000 ms 100 mA 12 → 24 V dc -
RS Stock No. 324-0958
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA070D2S11
THB11,749.11
Each
Units
Differential 50bar 70bar 2 % Relay Hydraulic Fluid G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc -
RS Stock No. 831-5707
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PX2AN2XX150PAAAX
Brand :Honeywell
THB2,691.76
Each
Units
Absolute 0psi 150psi ±0.25 % Analogue Air, Brake Fluid, Hydraulic Fluid, Oil, Refrigeration Fluid NPT 1/8 0.5 → 4.5 V Metri-Pack 150 - <2 ms 5 mA 4.75 → 5.25 V dc -
RS Stock No. 797-5018
Brand :RS PRO
THB6,856.43
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. 397-1129
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.6101-0003
Brand :Herga
THB1,189.74
Each
Units
Differential 0.25bar 1.35bar - Relay Fluid - - - - - 20 mA 250 V ac -
RS Stock No. 125-3729
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7MF1567-3DA00-1AA1
Brand :Siemens
THB9,819.91
Each
Units
Relative 0bar 100bar 0.25 % Analogue Aggressive Media, Gas, Liquid, Non-Aggressive Media, Vapour G1/2 4 → 20 mA DIN EN 175301 Connector, M16 - <5 ms 20 mA 7 → 33 V dc -
RS Stock No. 448-8117
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0184459031-SS
Brand :Suco
THB3,577.12
Each
Units
- 10bar 50bar - Relay Air, Heating Oil, Hydraulic Fluid, Turpentine G1/4 - DIN 46350 Connector - - 4 A 250 V -
RS Stock No. 125-3728
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7MF1565-3CD00-1AA1
Brand :Siemens
THB10,035.93
Each
Units
Relative 0bar 25bar 0.25 % Analogue Aggressive Media, Gas, Liquid, Non-Aggressive Media, Vapour G1/2 4 → 20 mA DIN EN 175301 Connector, M16 - <5 ms 20 mA 7 → 33 V dc -
RS Stock No. 797-0943
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.31ISB0016G01R000
Brand :Gems Sensors
THB5,598.38
Each
Units
Relative 0bar 16bar 0.25 % Analogue Fluid, Gas G1/4 4 → 20 mA DIN 43650 Type C - 1 ms 4.5 mA 8 → 24 V dc -
RS Stock No. 169-7680
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.26PCDFA2G
Brand :Honeywell
THB1,214.482
Each (In a Box of 25)
Units
Relative 0psi 30psi ±0.25 % Wheatstone Bridge Nitrogen Gas, Oxygen - 0 → 100 mV PCB - 1 ms - 2.5 → 16 V dc -
RS Stock No. 779-4260
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.210114-RS
Brand :Gems Sensors
THB2,430.91
Each
Units
- 2000psi 5000psi - SPDT Air, Hydraulic NPT 1/4 - Screw Terminals - - 5 A 125/250 V -
RS Stock No. 452-8883
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.401001/000-459-405-502-20-601-61/000
Brand :Jumo
THB6,104.09
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. 302-5822
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA004A2S11
THB11,216.56
Each
Units
Differential 0.4bar 4bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc -
RS Stock No. 795-4711
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3100R0010G01B000
Brand :Gems Sensors
THB4,636.92
Each
Units
Relative 0bar 10bar ±0.25 % Voltage Fluid, Gas G1/4 0 → 5 V DIN 43650 Type A - 1 ms 4.5 mA 7 → 30 V dc -
RS Stock No. 655-8189
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.26PCDF A2G
Brand :Honeywell
THB1,308.31
Each
Units
Relative 0psi 30psi ±0.1 % Wheatstone Bridge Nitrogen Gas, Oxygen, Water - 100 mV dc PCB - 1 ms - 10 V dc -
RS Stock No. 779-4204
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PS61-20-4MGZ-A-SP
Brand :Gems Sensors
THB1,224.19
Each
Units
- 40psi 150psi - SPST-NO Hydraulic BSP 1/4 - Spade Terminal - - 100 VA 42 V dc -
RS Stock No. 123-6135
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.251234
Brand :Gems Sensors
THB1,224.19
Each
Units
- 55bar 135bar ±3.3 bar SPST-NO Liquid BSP 1/4 - 1/4 x 1/32 Spade Terminal - - - - -
RS Stock No. 177-4880
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2SMPP-02
Brand :Omron
THB103.53
Each (In a Tube of 112)
Units
- - - - - - - - - - - - - -
RS Stock No. 779-4213
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PS61-30-4MGZ-A-SP
Brand :Gems Sensors
THB1,175.36
Each
Units
- 75psi 275psi - SPST-NO Hydraulic BSP 1/4 - Spade Terminal - - 100 VA 42 V dc -