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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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. 455-4747
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3100B2200S2TB000
Brand :Gems Sensors
THB4,417.75
Each
Units
Gauge 0bar 2200bar 0.25 % Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil M12 4 → 20 mA DIN 43650 Type C - 1 ms - 8 → 30 V dc -
RS Stock No. 177-5947
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDX01G2
Brand :Honeywell
THB2,064.48
Each (In a Box of 25)
Units
Relative 0psi 1psi ±0.2 % Wheatstone Bridge Gas - 0 → 18 mV PCB - 100 μs - 20 V dc -
RS Stock No. 455-5122
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDX01G2
Brand :Honeywell
THB2,596.32
Each
Units
Gauge 0psi 1psi ±0.2 % Unamplified Gas - 17.37 → 18.18 mV PCB - 100 μs - 20 V dc -
RS Stock No. 455-4624
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3100B0010G01B000
Brand :Gems Sensors
THB5,547.19
Each
Units
Gauge 0bar 10bar 0.25 % Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil G1/4 4 → 20 mA DIN 43650 Type C - 1 ms - 10 → 30 V dc -
RS Stock No. 795-4737
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3100B0010G05G000
Brand :Gems Sensors
THB5,293.54
Each
Units
Gauge 0bar 10bar ±0.25 % Current Fluid, Gas G1/4 4 → 20 mA DIN 43650 Type A - 1 ms 20 mA 8 → 30 V dc -
RS Stock No. 111-5919
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PX3AN2BS250PAAAX
Brand :Honeywell
THB1,946.56
Each
Units
Absolute 0psi 250psi ±0.25 % Analogue Air, Brake Fluid, Hydraulic Fluid, Oil, Refrigeration Fluid NPT 1/8 0.5 → 4.5 V Metri-Pack 150 - <2 ms 3 mA 4.75 → 5.25 V dc -
RS Stock No. 102-4140
Brand :RS PRO
THB20,902.29
Each
Units
Relative 0bar 10bar ±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. 774-4101
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDP610-025Pa
Brand :Sensirion
THB1,148.22
Each
Units
Differential -25Pa 25Pa 3 % I2C Air, Non-Aggressive Gas - - 4 Pin SMD Connector - 4.6 ms 6 mA 2.7 → 3.3 V dc -
RS Stock No. 818-4623
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.D6F-PH0505AD3
Brand :Omron
THB1,076.69
Each
Units
Differential -50Pa 50Pa ±3 % I2C Air - - PCB - 33 ms 6 mA 2.3 → 3.6 V dc -
RS Stock No. 922-7302
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPX2010GP
Brand :NXP
THB367.996
Each (In a Tray of 20)
Units
Relative 0bar 10kPa ±1 % - Air - 24 → 26 mV PCB Mount - 1 ms - 10 V dc -
RS Stock No. 719-1030
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPX2010GP
Brand :NXP
THB485.98
Each
Units
Relative 0bar 10kPa ±1 % - Air - 24 → 26 mV PCB Mount - 1 ms - 10 V dc -
RS Stock No. 324-0964
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA160D2S11
THB5,996.88
Each
Units
Differential 10bar 160bar 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. 719-1080
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPX5010DP
Brand :NXP
THB510.67
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 922-7324
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPX5010DP
Brand :NXP
THB386.703
Each (In a Tray of 20)
Units
Differential 0bar 10kPa ±5 % Analogue Air, Fluid - 4.7 V PCB Mount - 1 ms - 4.75 → 5.25 V dc -
RS Stock No. 123-7142
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDP611
Brand :Sensirion
THB1,132.69
Each
Units
Differential -500Pa 500Pa 3 % I2C Air, Nitrogen Gas, Oxygen Gas 5.2 mm Tube - - - 4.6 ms <6 mA 3.6 V -
RS Stock No. 173-2216
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDP611
Brand :Sensirion
THB798.035
Each (In a Tray of 80)
Units
Differential -500Pa 500Pa 3 % I2C Air, Nitrogen Gas, Oxygen Gas 5.2 mm Tube - - - 4.6 ms <6 mA 3.6 V -
RS Stock No. 124-1474
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879245
Brand :WIKA
THB4,534.03
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. 797-5037
Brand :RS PRO
THB7,210.22
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. 399-1628
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMAV12L2135
THB3,663.37
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
THB3,688.54
Each
Units
Relative - - - NPN-NO/NC Non-Corrosive Gas G1/8 - Wire Lead - 5000 ms 100 mA 12 → 24 V dc -
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