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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Beskrivning Pris Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Calibrated Process Connection Analogue Output Electrical Connection Response Time Maximum Current Supply Voltage Interface
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Tillv. art.nrMPX5700AP
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Absolute 15kPa 700kPa ±2.5 % Analogue Air - - 4.7 V PCB Mount 1 ms - 4.75 → 5.25 V dc -
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87,503 kr
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Differential 0kPa 10kPa ±5 % Analogue Air, Fluid - - 4.7 V PCB Mount 1 ms - 4.75 → 5.25 V dc -
RS-artikelnummer 922-7308
Tillv. art.nrMPX2010DP
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Differential 0kPa 10kPa ±1 % - Air - - 24 → 26 mV PCB Mount 1 ms - 10 V dc -
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Tillv. art.nrMPXV4006DP
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87,927 kr
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Differential 0kPa 6kPa ±2.46 % Analogue Air, Fluid - - 4.8 V PCB Mount - - 4.75 → 5.25 V dc -
RS-artikelnummer 169-0724
Tillv. art.nrMPXV2202DPT1
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103,452 kr
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Absolute, Differential, Gauge 0kPa 200kPa ±1 % Voltage Air - - 38.5 → 41.5 mV PCB Mount 1 ms 6 mA 16 V dc -
RS-artikelnummer 169-0629
Tillv. art.nrMPX4250A
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90,19 kr
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Absolute 20kPa 250kPa ±1.5 % Analogue Air - - 4.9 V PCB Mount 1 ms - 4.85 → 5.35 V dc -
RS-artikelnummer 922-7327
Tillv. art.nrMPX4250AP
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141,762 kr
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Absolute 20kPa 250kPa ±1.5 % Analogue Air - - 4.9 V PCB Mount 1 ms - 4.85 → 5.35 V dc -
RS-artikelnummer 922-7318
Tillv. art.nrMPX2200AP
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112,277 kr
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Absolute 0kPa 200kPa ±1 % - Air - - 38.5 → 41.5 mV PCB Mount 1 ms - 10 V dc -
RS-artikelnummer 922-7399
Tillv. art.nrMPXV5004DP
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112,987 kr
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Differential 0kPa 3.92kPa ±1.5 % Analogue Air, Fluid - - 1 → 4.9 V PCB Mount - - 4.75 → 5.25 V dc -
RS-artikelnummer 719-1065
Tillv. art.nrMPX4250A
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88,92 kr
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Absolute 20kPa 250kPa ±1.5 % Analogue Air - - 4.9 V PCB Mount 1 ms - 4.85 → 5.35 V dc -
RS-artikelnummer 922-7377
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Absolute 15kPa 115kPa ±1.5 % Analogue Air - - 4.8 V PCB Mount 1 ms - 4.75 → 5.25 V dc -
RS-artikelnummer 922-7349
Tillv. art.nrMPX5050GP
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103,569 kr
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RS-artikelnummer 922-7409
Tillv. art.nrMPXV5010DP
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115,676 kr
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Differential 0kPa 10kPa ±5 % Analogue Air, Fluid - - 4.7 V PCB Mount 1 ms - 4.75 → 5.25 V dc -
RS-artikelnummer 752-2377
Tillv. art.nrMPXV2202DPT1
VarumärkeNXP
122,63 kr
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Absolute, Differential, Gauge 0kPa 200kPa ±1 % Voltage Air - - 38.5 → 41.5 mV PCB Mount 1 ms 6 mA 16 V dc -
RS-artikelnummer 922-7403
Tillv. art.nrMPXV5050GP
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116,635 kr
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RS-artikelnummer 922-7380
Tillv. art.nrMPXM2202AS
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50,405 kr
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Absolute 0kPa 200kPa ±1 % - Air - - 38.5 → 41.5 mV PCB Mount 1 ms - 10 V dc -
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Tillv. art.nrMPX2202A
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71,422 kr
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Tillv. art.nrMPVZ4006GW7U
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121,18 kr
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Gauge 0kPa 6kPa ±2.46 % Analogue Air - - 4.6 V PCB Mount - - 4.75 → 5.25 V dc -
RS-artikelnummer 922-7406
Tillv. art.nrMPXV5004GC7U
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114,606 kr
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Gauge 0kPa 3.92kPa ±1.5 % Analogue Air, Fluid - - 1 → 4.9 V PCB Mount - - 4.75 → 5.25 V dc -