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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Description Price Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Process Connection Analogue Output Electrical Connection Response Time Maximum Current Supply Voltage Interface Housing Material
RS庫存編號 124-1476
製造零件編號46879279
BrandWIKA
TWD3,710.00
單位
- -1bar 9bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C < 4 ms - 8 → 30 V dc - Stainless Steel
全新
RS庫存編號 190-9709
製造零件編號9021310
BrandWIKA
TWD20,935.00
單位
- 0bar 2.5bar ±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 - Stainless Steel
全新
RS庫存編號 190-9714
製造零件編號9021248
BrandWIKA
TWD20,935.00
單位
- 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 - Stainless Steel
RS庫存編號 124-1477
製造零件編號46879433
BrandWIKA
TWD21,148.00
單位
- 0psi 4.26psi 0.25 % Analogue Liquid - 4 → 20 mA FEP Cable (5 metres) - - 10 → 30 V dc - Stainless Steel
RS庫存編號 124-1472
製造零件編號46879359
BrandWIKA
TWD10,285.00
單位
- 0bar 6bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A < 2 ms - 10 → 30 V dc - Stainless Steel
全新
RS庫存編號 190-9719
製造零件編號9023550
BrandWIKA
TWD20,935.00
單位
- 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 - Stainless Steel
RS庫存編號 879-5059
製造零件編號52375455
BrandWIKA
TWD16,174.00
單位
Absolute, Relative 0psi 5000psi 0.25 % Current Synthetic Oil - 4 → 20 mA - 3 ms 25 mA 8 → 36 V dc - Stainless Steel
RS庫存編號 124-1486
製造零件編號46882608
BrandWIKA
TWD6,019.00
單位
- 0bar 6bar 0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A < 3 ms - 8 → 35 V dc - Stainless Steel
全新
RS庫存編號 190-9715
製造零件編號9023518
BrandWIKA
TWD20,935.00
單位
- 0bar 25bar ±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 - Stainless Steel
RS庫存編號 879-5163
製造零件編號50426397
BrandWIKA
TWD6,684.00
單位
Relative 0psi 15psi ≤±1 (0.5 Non-Linearity) % Analogue Oil - 4 → 20 mA - <4 ms 25 mA 8 → 30 V dc - 316L Stainless Steel
全新
RS庫存編號 190-9710
製造零件編號9021213
BrandWIKA
TWD20,935.00
單位
- 0bar 4bar ±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 - Stainless Steel
RS庫存編號 124-1478
製造零件編號46879280
BrandWIKA
TWD4,867.00
單位
- 0bar 400bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C < 4 ms - 8 → 30 V dc - Stainless Steel
全新
RS庫存編號 190-9720
製造零件編號9023569
BrandWIKA
TWD20,935.00
單位
- 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 - Stainless Steel
全新
RS庫存編號 190-9717
製造零件編號9023534
BrandWIKA
TWD20,935.00
單位
- 0bar 60bar ±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 - Stainless Steel
RS庫存編號 879-5181
製造零件編號50426516
BrandWIKA
TWD6,684.00
單位
- 0psi 3000psi ≤±1 (0.5 Non-Linearity) % Analogue Oil - 4 → 20 mA - <4 ms 25 mA 8 → 30 V dc - 316L Stainless Steel
全新
RS庫存編號 190-9701
製造零件編號9083537
BrandWIKA
TWD20,935.00
單位
- 0bar 0.1bar ±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 - Stainless Steel
RS庫存編號 124-1475
製造零件編號46879424
BrandWIKA
TWD5,042.00
單位
- 0bar 10bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A < 4 ms - 8 → 30 V dc - Stainless Steel
RS庫存編號 124-1485
製造零件編號14076933
BrandWIKA
TWD6,019.00
單位
- 0bar 10bar 0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A < 3 ms - 8 → 35 V dc - Stainless Steel
RS庫存編號 124-1463
製造零件編號46879222
BrandWIKA
TWD3,710.00
單位
- 0bar 10bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C < 4 ms - 8 → 30 V dc - Stainless Steel
RS庫存編號 124-1470
製造零件編號46879227
BrandWIKA
TWD4,867.00
單位
- 0bar 250bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 C < 4 ms - 8 → 30 V dc - Stainless Steel