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Piezoresistive Pressure Sensor

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  • Pressure Range: ≤1bar, ≤35bar, >35bar
  • Power Supply: ≤ 2.0mA DC / ≤ 10V DC
  • Diameter: Φ19mm
  • Height: 15mm
  • Non-Linearity (Typ.): ±0.15%FS
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Piezoresistive Pressure Sensor Introduction

Piezoresistive pressure sensor is a silicon oil-diffused type pressure sensing element. It is fully stainless steel constructed with ranging from 0.2 bar to 1000 bar. With long-term stability, constant voltage, and current supply, the pressure sensor is suitable for fluid pressure measurements, such as for air, water, gas, or oil.

Piezoresistive strain gauges are among the most common types of pressure sensors. They use the change in electrical resistance of a material when stretched to measure the pressure.


Piezoresistive Pressure Sensor Feature


  •  With constant current and constant voltage excitation options

  •  Imported highly reliable pressure die

  •  Wide temperature compensation

  •  Normalized output available

  •  Compensation board filled with glue for protection against moisture

  •  Φ19mm standard OEM

  •  All 316L material

  •  High performance, all solid, high reliability

  • 18 months warranty period


Piezoresistive Pressure Sensor Specification 


Pressure range-100kPa~0~10kPa…100MPa
Pressure referenceGauge pressure | Absolute pressure | Sealed gauge pressure
Excitation1.5mA recommended for constant current
10V recommended for constant voltage
Input impedanceConstant current: 2kΩ~5kΩ
Constant voltage: 3kΩ~18kΩ
Electrical connectionGold-plated KOVAR pin or silicon soft wire
Compensation temp.Constant current: ≤70kPa 0ºC~60ºC; other ranges -10ºC~70ºC
Constant voltage: -20ºC~85ºC
Operating temp.-40ºC~125ºC
Storage temp.-40ºC~125ºC
Insulation resistance≥200MΩ/250VDC 
Response time≤1ms (up to 90%FS)
Measured mediumAll the liquids and gases compatible with 316L.
Mechanical vibration20g (20~5000HZ)
Shock100g (10ms)
Service life10×106 (cycles)
Structural performance parameters

Diaphragm material316L
Housing material316L
Oil fillingSilicon oil
Sealing ringNBR or fluorine rubber

 

Basic parameters

ItemConditionMinNominalMaxUnit
Nonlinearity
-0.3±0.20.3%FS
Hysteresis
-0.05±0.030.05%FS
Repeatability
-0.05±0.030.05%FS
Zero output
-2±12mV
Full scale span output1.5mA, 10kPa
1.5mA, other ranges
10V, 10kPa
10V, other ranges
30
60
60
98

90

100

150

102
mV
Zero temp. coefficient10kPa
other ranges
-2
-1.5
±1.5
±0.75
2
1.5
%FS
Span temp. coefficient
-1.5±0.751.5%FS
Thermal hysteresis
-0.075±0.050.075%FS
Long term stability
-0.3±0.20.3%FS/Year


-Manuals

Piezoresistive Pressure Sensor

-Data sheet


Piezoresistive Pressure Sensor Application

  •  Process control systems

  •  Pressure calibration instruments

  •  Refrigeration equipment and HVAC control

  •  Hydraulic systems and valves

  •  Level measurement

  •  Biomedical instruments

  •  Ships and navigation

  •  Aircraft and avionics systems

  •  Weaponry

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