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.


...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 114 項產品
Results per page
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 302-5838
製造零件編號XMLA010A2S11
HK$1,253.24
單位
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 - Zinc Alloy
RS庫存編號 399-1612
製造零件編號XMAV06L2135
HK$694.54
單位
Differential 1bar 6bar 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 - PC
RS庫存編號 609-6912
製造零件編號XMLA002A2S11
HK$1,122.04
單位
Differential 0.15bar 2.5bar 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 - Zinc Alloy
RS庫存編號 361-3384
製造零件編號XMLB010A2S12
HK$1,776.81
單位
Differential 0.7bar 10bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water G1/4 - M20 Cable Gland - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc - Zinc Alloy
RS庫存編號 199-399
製造零件編號XMPA12C2131
HK$363.30
單位
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water G1/4 - PG13.5 Cable Gland - 1.5 A - - Fibreglass
RS庫存編號 324-1018
製造零件編號XMLB010A2S11
HK$1,776.81
單位
Differential 0.7bar 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 - Zinc Alloy
RS庫存編號 399-1628
製造零件編號XMAV12L2135
HK$630.92
單位
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 - PC
RS庫存編號 361-3435
製造零件編號XMLA004A2S12
HK$1,122.04
單位
Differential 0.4bar 4bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water G1/4 - M20 Cable Gland - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc - Zinc Alloy
RS庫存編號 361-3441
製造零件編號XMLA010A2S12
HK$1,270.00
單位
Differential 0.6bar 10bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water G1/4 - M20 Cable Gland - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc - Zinc Alloy
RS庫存編號 609-6928
製造零件編號XMLA010A2C11
HK$1,226.48
單位
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 - Zinc Alloy
RS庫存編號 302-5822
製造零件編號XMLA004A2S11
HK$1,394.00
單位
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 - Zinc Alloy
RS庫存編號 324-0958
製造零件編號XMLA070D2S11
HK$1,248.90
單位
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 - Zinc Alloy
RS庫存編號 302-5844
製造零件編號XMLA020A2S11
HK$1,239.62
單位
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 - Zinc Alloy
RS庫存編號 814-8015
製造零件編號XMLB010A2S13
HK$1,903.07
單位
Differential 0.7bar 10bar <2 % - Air, Fresh Water, Oil, Sea Water NPT 1/4 - NPT 1/2 Cable Entry - 3 A 240 V ac, 250 V dc - Zinc Alloy
RS庫存編號 199-412
製造零件編號XMLA010B2S11
HK$1,930.36
單位
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 - Zinc Alloy
RS庫存編號 399-1634
製造零件編號XMAV25L2135
HK$891.12
單位
Differential 3.5bar 25bar 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 - PC
RS庫存編號 146-5273
製造零件編號XMLP016BC71F
HK$1,013.76
單位
Differential - 48bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid G1/4 0 → 10 V 3-Pin EN 175301-803-A Male Connector ≤2 ms <7 mA 24 V dc - FPM, Stainless Steel
RS庫存編號 146-5278
製造零件編號XMLP060BC71F
HK$984.19
單位
Differential - 120bar ±0.5 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid G1/4 0 → 10 V 3-Pin EN 175301-803-A Male Connector ≤2 ms <7 mA 24 V dc - FPM, Stainless Steel
RS庫存編號 135-3777
製造零件編號XMLRM01G0T75
HK$3,247.80
單位
- -1bar 0bar ±1 % Analogue Air, Fresh Water, Hydraulic Fluid, Refrigeration Fluid - 0 → 10 V 4 Pole M12 Connector ≤10 ms ≤50 mA 24 V dc - Polyacrylamide, Stainless Steel
RS庫存編號 361-3429
製造零件編號XMLA300D2S12
HK$1,248.90
單位
Differential 20bar 300bar 2 % Relay Hydraulic Fluid G1/4 - M20 Cable Gland - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc - Zinc Alloy