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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Omschrijving Prijs Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Calibrated Process Connection Analogue Output Electrical Connection Communication Protocol Response Time Maximum Current Supply Voltage
RS-stocknr. 736-1504
FabrikantnummerPBS-RB400SG2SS0BMA0Z
FabrikantSick
268,00 €
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Relative 0bar 400bar ±1 % Analogue + PNP NO/NC Programmable Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 736-1484
FabrikantnummerPBS-RB010SG1SSNBMA0Z
FabrikantSick
268,00 €
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Aantal stuks
Relative 0bar 10bar ±1 % Analogue + PNP NO/NC Programmable Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 739-6780
FabrikantnummerPBT-RB100SG1SSNAMA0Z
FabrikantSick
116,00 €
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Relative 0bar 100bar ±0.5 % Analogue Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 4 ms 25 mA 8 → 30 V dc
Nieuw
RS-stocknr. 201-7894
FabrikantnummerPAC50-AGC
FabrikantSick
136,30 €
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Gauge -1bar 0bar ± 1.5 % Transistor Gas - - - - - - - 17 → 30 V
RS-stocknr. 736-1462
FabrikantnummerPBS-RB010SG1SSNAMA0Z
FabrikantSick
237,00 €
Each
Aantal stuks
Relative 0bar 10bar ±1 % 2 x PNP NO/NC Programmable Fluid, Gas - G1/4 - M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 736-1490
FabrikantnummerPBS-RB010SG2SS0BMA0Z
FabrikantSick
268,00 €
Each
Aantal stuks
Relative 0bar 10bar ±1 % Analogue + PNP NO/NC Programmable Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 739-6771
FabrikantnummerPBT-RB025SG1SSNAMA0Z
FabrikantSick
116,00 €
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Aantal stuks
Relative 0bar 25bar ±0.5 % Analogue Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 4 ms 25 mA 8 → 30 V dc
RS-stocknr. 739-6774
FabrikantnummerPBT-RB1X0SG1SSNAMA0Z
FabrikantSick
116,00 €
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Relative 0bar 1bar ±0.5 % Analogue Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 4 ms 25 mA 8 → 30 V dc
RS-stocknr. 736-1488
FabrikantnummerPBS-RB100SG1SSNBMA0Z
FabrikantSick
268,00 €
Each
Aantal stuks
Relative 0bar 100bar ±1 % Analogue + PNP NO/NC Programmable Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 736-1481
FabrikantnummerPBS-RB400SG2SS0AMA0Z
FabrikantSick
237,00 €
Each
Aantal stuks
Relative 0bar 400bar ±1 % 2 x PNP NO/NC Programmable Fluid, Gas - G1/4 - M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 739-6787
FabrikantnummerPBT-RB400SG1SSNAMA0Z
FabrikantSick
116,00 €
Each
Aantal stuks
Relative 0bar 400bar ±0.5 % Analogue Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 4 ms 25 mA 8 → 30 V dc
RS-stocknr. 736-1478
FabrikantnummerPBS-RB010SG2SS0AMA0Z
FabrikantSick
237,00 €
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Aantal stuks
Relative 0bar 10bar ±1 % 2 x PNP NO/NC Programmable Fluid, Gas - G1/4 - M12 Connector - 3 ms 250 mA 15 → 35 V dc
RS-stocknr. 739-6783
FabrikantnummerPBT-RB250SG1SSNAMA0Z
FabrikantSick
116,00 €
Each
Aantal stuks
Relative 0bar 250bar ±0.5 % Analogue Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 4 ms 25 mA 8 → 30 V dc
RS-stocknr. 739-6777
FabrikantnummerPBT-RB010SG1SSNAMA0Z
FabrikantSick
116,00 €
Each
Aantal stuks
Relative 0bar 10bar ±0.5 % Analogue Fluid, Gas - G1/4 4 → 20 mA M12 Connector - 4 ms 25 mA 8 → 30 V dc
RS-stocknr. 736-1475
FabrikantnummerPBS-RB400SG1SSNAMA0Z
FabrikantSick
237,00 €
Each
Aantal stuks
Relative 0bar 400bar ±1 % 2 x PNP NO/NC Programmable Fluid, Gas - G1/4 - M12 Connector - 3 ms 250 mA 15 → 35 V dc