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.


...
Read more Read less

Filters

Viewing 1 - 20 of 1046 products
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 Stock No. 797-4955
BrandRS PRO
$258.54
Each
units
Gauge 0bar 400bar ±0.25 % Current Air, Gas, Hydraulic Fluid, Liquid, Water BSP 1/4 4 → 20 mA DIN 43650 Connector - 20 mA 9 → 32 V dc - Stainless Steel
RS Stock No. 317-443
Mfr. Part No.6753-0002
BrandHerga
$81.10
Each
units
- - 0.072psi ±2.5 % - Air - - Spade Terminal - - 250 V ac - Nylon
RS Stock No. 111-5921
Mfr. Part No.PX3AG1BH010BSAAX
BrandHoneywell
$87.57
Each
units
Sealed Gauge 0bar 10bar ±0.25 % Analogue Air, Brake Fluid, Hydraulic Fluid, Oil, Refrigeration Fluid G1/4 0.5 → 4.5 V Metri-Pack 150 <2 ms 3 mA 4.75 → 5.25 V dc - Brass
RS Stock No. 821-4027
Mfr. Part No.MLH150PSB06A
BrandHoneywell
$187.18
Each
units
Sealed Gauge 0psi 150psi ±0.25 % Amplified Fluid NPT 1/8 0.5 → 4.5 V Metri-Pack 150 <2 ms 8 mA 4.75 → 5.25 V dc - Plastic
RS Stock No. 772-9907
Mfr. Part No.XMPA12B2131
$84.14
Each
units
- - - - - - - - - - - - - -
RS Stock No. 173-2220
Mfr. Part No.SDP1000-L
BrandSensirion
$193.124
Each (In a Tray of 25)
units
Differential -20Pa 500Pa 0.2 %, 1.5 % Analogue Air, Non-Aggressive Gas - 0.25 → 4 V 3 Pin SMD Connector 40 ms 5.2 mA 4.75 → 5.25 V - PPS
RS Stock No. 535-1195
Mfr. Part No.526610CLBHTI
$263.09
Each
units
Differential -1000Pa 1000Pa ±1 % Analogue Air, Non-Conductive Gas - 4 → 20 mA Terminal Strip 1 s - 24 V dc - Stainless Steel
RS Stock No. 774-4085
Mfr. Part No.SDP1000-L
BrandSensirion
$125.16
Each
units
Differential -20Pa 500Pa 0.2 %, 1.5 % Analogue Air, Non-Aggressive Gas - 0.25 → 4 V 3 Pin SMD Connector 40 ms 5.2 mA 4.75 → 5.25 V - PPS
RS Stock No. 746-3499
Mfr. Part No.X5072-TB-A1-CA-H1-PA 250 bar SG
BrandDruck
$558.42
Each
units
Sealed Gauge - 250bar ±0.2 % Analogue Fluid G1/4 4 → 20 mA DIN 43650 Type A 10 ms 20 mA 7 → 28 V - Stainless Steel
RS Stock No. 123-7134
Mfr. Part No.SDP1108-R
BrandSensirion
$194.48
Each
units
Differential 0Pa 500Pa 2 % Analogue Air, Nitrogen Gas, Oxygen Gas 5.2 mm Tube 0.25 → 4 V - 10.1 ms 6 mA 5.25 V dc - -
RS Stock No. 788-4921
Mfr. Part No.2SMPP-02
BrandOmron
$6.045
Each (In a Pack of 2)
units
Gauge 0kPa 37kPa - Amplified Air - - PCB - 130 μA - - PPS
RS Stock No. 797-0962
Mfr. Part No.31ISB0250S01R000
$223.52
Each
units
Gauge 0bar 250bar 0.25 % Analogue Fluid, Gas G1/4 4 → 20 mA DIN 43650 Type C 1 ms 4.5 mA 8 → 24 V dc - Stainless Steel
RS Stock No. 177-4880
Mfr. Part No.2SMPP-02
BrandOmron
$5.06
Each (In a Tube of 112)
units
- - - - - - - - - - - - - -
RS Stock No. 398-7051
Mfr. Part No.0166411031043
BrandSuco
$49.75
Each
units
- 10bar 20bar - Relay Air, Heating Oil, Hydraulic Fluid, Turpentine G1/4 - Spade Terminal - - 42 V - Zinc Plated Steel
RS Stock No. 455-4652
Mfr. Part No.3100B0040G01B000
$267.07
Each
units
Gauge 0bar 40bar 0.25 % Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil G1/4 4 → 20 mA DIN 43650 Type A 1 ms - 8 → 30 V dc - -
RS Stock No. 774-4104
Mfr. Part No.SDP610-500Pa
BrandSensirion
$60.35
Each
units
Differential -500Pa 500Pa 3 % I2C Air, Non-Aggressive Gas - - 4 Pin SMD Connector 4.6 ms 6 mA 2.7 → 3.3 V dc - PBT
RS Stock No. 302-5838
Mfr. Part No.XMLA010A2S11
$368.87
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 - Zinc Alloy
RS Stock No. 111-5908
Mfr. Part No.PX3AN1BH010BSAAX
BrandHoneywell
$58.84
Each
units
Sealed Gauge 0bar 10bar ±0.25 % Analogue Lubricants, Oil, Refrigeration Fluid - 0 → 4.5 V Metri-Pack 150 <2 ms 3.5 mA 5 V dc - Brass
RS Stock No. 111-5919
Mfr. Part No.PX3AN2BS250PAAAX
BrandHoneywell
$86.03
Each
units
Absolute 0psi 250psi ±0.25 % Analogue Air, Brake Fluid, Hydraulic Fluid, Oil, Refrigeration Fluid NPT 1/8 0.5 → 4.5 V Metri-Pack 150 <2 ms 3 mA 4.75 → 5.25 V dc - Brass
RS Stock No. 235-5885
Mfr. Part No.24PCFFA6D
BrandHoneywell
$30.55
Each
units
Differential 0psi 100psi 0.2 % Unamplified Nitrogen Gas, Oxygen, Water - 156 → 294 mV Solder Tag 1 ms - 10 V dc - -
Related Products
Honeywell PX3 Series heavy duty pressure transducer is ...
Description:
Honeywell PX3 Series heavy duty pressure transducer is a range of highly configurable pressure sensors that use piezoresistive sensing technology with ASIC (Application Specific Integrated Circuit) signal conditioning in a brass housing. The PX3 Series is fully calibrated and compensated ...
Sensirion’s SDP1000/SDP2000 series of low range differential pressure ...
Description:
Sensirion’s SDP1000/SDP2000 series of low range differential pressure sensors for air and other non-aggressive gases provide fast and reliable measurement with excellent stability. The small and cost-effective design makes them an ideal match for price-sensitive solutions, e.g. in medical and ...
Amplified pressure gauge sensorSmall 6-pin DIL package requires ...
Description:
Amplified pressure gauge sensorSmall 6-pin DIL package requires minimal PCB spaceFully signal conditioned monolithic designSilicon piezo-resistive measurement technologyPort designed for O-ring interfaceExcellent media compatibilityAccuracy of 0.2%Media: Air, dry gasesOperating temp. -45°C → +125°C.
The UNIK 5000 series is a high performance ...
Description:
The UNIK 5000 series is a high performance configurable solution to pressure measurement.The pressure sensors use silicon technology and analogue circuitry which enables high performance for stability, low power and frequency response. Frequency response to 5 kHzHigh over pressure capability. ...