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. 455-5166
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDX01D4
Brand :Honeywell
THB3,312.31
Each
Units
Differential 0psi 1psi ±0.2 % Unamplified Gas - 17.37 → 18.18 mV PCB - 100 μs - 20 V dc -
RS Stock No. 779-4232
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PS61-40-4MGZ-B-SP
Brand :Gems Sensors
THB1,224.19
Each
Units
- 150psi 500psi - SPST-NC Hydraulic BSP 1/4 - Spade Terminal - - 100 VA 42 V dc -
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 -
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. 177-5948
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDX01D4
Brand :Honeywell
THB3,311.552
Each (In a Box of 25)
Units
Differential 0psi 1psi ±0.2 % Wheatstone Bridge Gas - 0 → 18 mV PCB - 100 μs - 20 V dc -
RS Stock No. 797-0965
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.31ISB0400S01R000
Brand :Gems Sensors
THB5,733.49
Each
Units
Relative 0bar 400bar 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. 788-4921
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2SMPP-02
Brand :Omron
THB124.745
Each: (In a Pack of 2)
Units
Relative 0bar 37kPa - Amplified Air - - PCB - - 130 μA - -
RS Stock No. 797-0940
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.31ISB0010G01R000
Brand :Gems Sensors
THB6,182.10
Each
Units
Relative 0bar 10bar 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. 374-8761
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.787260
Brand :Burkert
THB859.77
Each
Units
Differential 1bar 10bar - Relay Air, Hydraulic Fluid, Oil Emulsion, Water G1/8 - Spade Terminal - - 2 A 42 V -
RS Stock No. 609-7066
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLBM05A2S11
THB9,356.71
Each
Units
Differential -0.5bar 5bar 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. 124-2169
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPA06C2374N
THB2,060.75
Each
Units
Differential 1 (Rising)bar 6 (Rising)bar <3.5 (Repeat) % 3NC Air, Fresh Water, Sea Water G1/2 - Screw Clamp - - - - -
RS Stock No. 779-4254
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.211215-RS
Brand :Gems Sensors
THB2,430.91
Each
Units
- 65psi 300psi - SPDT Air, Hydraulic BSP 1/4 - Screw Terminals - - 5 A 125/250 V -
RS Stock No. 668-3014
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.401010/000-460-405-502-20-61/000
Brand :Jumo
THB7,360.47
Each
Units
Relative 0bar 16bar - Analogue Air G1/4 4 → 20 mA DIN 43650 Connector - 5 ms - 8 → 30 V dc -
RS Stock No. 398-7051
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0166411031043
Brand :Suco
THB1,008.72
Each
Units
- 10bar 20bar - Relay Air, Heating Oil, Hydraulic Fluid, Turpentine G1/4 - Spade Terminal - - - 42 V -
RS Stock No. 302-5844
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA020A2S11
THB6,210.04
Each
Units
Differential 1bar 20bar 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. 779-4266
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.209958-RS
Brand :Gems Sensors
THB2,430.91
Each
Units
- 1000psi 30000psi - SPDT Air, Hydraulic NPT 1/4 - Screw Terminals - - 5 A 125/250 V -
RS Stock No. 828-5741
Brand :RS PRO
THB5,153.82
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. 455-4573
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.22ISBGC2500ABUA001
Brand :Gems Sensors
THB8,983.83
Each
Units
Relative 0bar 250bar 0.25 % Analogue Fluid, Gas G1/4 4 → 20 mA DIN 43650 Type A - - - 7 → 35 V dc -
RS Stock No. 181-1384
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.142PC15A
Brand :Honeywell
THB14,899.92
Each
Units
Absolute 0psi 15psi ±0.4 % Amplified Gas - 1 → 6 V PCB - 1 ms 20 mA 7 → 16 V dc -
RS Stock No. 124-2167
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPA06C2131C
THB1,566.37
Each
Units
Differential 0.2 (Falling) bar, 1 (Rising) bar 4.8 (Falling) bar, 6 (Rising) bar <3.5 (Repeat) % 3NC Air, Fresh Water, Sea Water G1/4 - Screw Clamp - - - - -