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. 324-0964
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA160D2S11
THB13,728.97
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. 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. 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. 302-5822
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA004A2S11
THB9,534.08
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. 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. 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. 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 - - - - -
RS Stock No. 835-2839
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLR010G1N25
THB11,686.67
Each
Units
Differential 0bar 10bar ≤0.1 % Analogue, 1 x NPN Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid G1/4 4 → 20 mA M12 Connector - ≤10 (Analogue) ms, ≤5 (Discrete) ms ≤50 mA 24 V dc -
RS Stock No. 609-6984
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLAM01V2S11
THB7,516.21
Each
Units
Differential -0.76bar -0.04bar 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. 609-6928
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA010A2C11
THB5,024.97
Each
Units
Differential 0.6bar 10bar 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. 124-2176
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPC06C2374
THB2,058.65
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 G1/2 - Screw Clamp - - - - -
RS Stock No. 361-3413
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA160D2S12
THB6,489.03
Each
Units
Differential 10bar 160bar 2 % Relay Hydraulic Fluid G1/4 - M20 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc -
RS Stock No. 124-2156
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLR100M1P25
THB12,702.08
Each
Units
Differential 5 (Falling) bar, 8 (Rising) bar 97 (Falling) bar, 100 (Rising) bar ≤0.2 (Repeat) %, ≤0.6 (Output) %, ≤1 (Overall) % Analogue, PNP-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid G1/4 4 → 20 mA M12 4-Pin Connector - ≤10 (Analogue) ms, ≤5 (Discrete) ms ≤50 mA 24 V dc -
RS Stock No. 609-7088
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPE12C2131
THB2,191.04
Each
Units
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water G1/4 - PG13.5 Cable Gland - - 1.5 A - -
RS Stock No. 124-2165
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPA06B2133NS1
THB1,476.86
Each
Units
Differential 1bar 6bar ±0.5 % 2 N/C - G1/4 - Screw Terminals - - - - -
RS Stock No. 772-9907
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPA12B2131
THB1,516.61
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 124-2119
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9012GAW4
THB11,283.25
Each
Units
Differential 1.5 (Decreasing) psi, 3.5 (Differential) psi 7.5 (Decreasing) psi, 15 (Differential) psi <4 (Repeat) % SPDT-NO/NC Air, Hydraulic Oil, Non-Corrosive Gas, Non-Corrosive Liquids 0.25 in NPTF - 0.5 in NPT - - 6 A 240 V ac, 250 V dc -
RS Stock No. 124-2171
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPA12B2142
THB1,943.28
Each
Units
Differential 0.3 (Falling) bar, 1.3 (Rising) bar 10.3 (Falling) bar, 12 (Rising) bar <3.5 (Repeat) % 2NC Air, Fresh Water, Sea Water G1/4 - Screw Clamp - - - - -
RS Stock No. 302-5838
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA010A2S11
THB6,600.06
Each
Units
Differential 0.6bar 10bar 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 -