Piezoelectric Pressure Transmitter High Frequency Pressure Transducer For

MOQ： 1Set
Price： Negotiable
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Payment Terms	Western Union,T/T,D/P,D/A,L/C
Supply Ability	100PCS/Month
Delivery Time	5-8 work days
Packaging Details	Carton
Electrical Connection	M12 Connector
Pressure Medium	gas or liquid
Process Connection	1/4 inch NPT
Signal Output	4-20mA 2 Wires
Medium	gas,liquid
Protection Level	IP65/ IP68
Measuring Range	0-1kPa-10MPa
Output Signal	4-20 mA
Power	9-32VDC
Supply	12.5 to 36Vdc
Brand Name	QINWEIYB
Model Number	QWYB-514
Certification	Explosion-proof certificate ，Safety certificate
Place of Origin	China

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Product Specification


Payment Terms	Western Union,T/T,D/P,D/A,L/C	Supply Ability	100PCS/Month
Delivery Time	5-8 work days	Packaging Details	Carton
Electrical Connection	M12 Connector	Pressure Medium	gas or liquid
Process Connection	1/4 inch NPT	Signal Output	4-20mA 2 Wires
Medium	gas,liquid	Protection Level	IP65/ IP68
Measuring Range	0-1kPa-10MPa	Output Signal	4-20 mA
Power	9-32VDC	Supply	12.5 to 36Vdc
Brand Name	QINWEIYB	Model Number	QWYB-514
Certification	Explosion-proof certificate ，Safety certificate	Place of Origin	China
High Light	Piezoelectric Pressure Transmitter ，Piezoelectric Pressure Transducer ，High Frequency Pressure Transducer

Piezoelectric Pressure Transmitter For Measuring Dynamic, High-Frequency And Transient Pressure

This is a special sensor used for measuring dynamic, high-frequency and transient pressure. Its working principle and application scenarios are fundamentally different from the mainstream technologies for static pressure measurement, such as piezoresistive and capacitive ones.

Main Features and Advantages

Extremely High Frequency Response and Ultra-Fast Dynamic Performance
- This is its core advantage. The piezoelectric element itself has extremely high stiffness, with a natural frequency reaching hundreds of kHz or even MHz. This enables it to precisely capture extremely rapid pressure transients, shock waves, and vibrations.
- The rise time is extremely short (down to the microsecond level).
High Sensitivity and High Resolution
- It can detect minute dynamic pressure changes.
Compact Size and Robust Structure
- The piezoelectric element itself can be made very compact and can withstand extremely high overloads (up to more than 10 times the range), making it suitable for use in harsh mechanical environments.
Wide Operating Temperature Range
- Especially natural quartz sensors, which can operate in extreme temperatures ranging from -200°C to +400°C.
No External Power Supply Required (for the sensor itself)
- The piezoelectric element is self-generating and does not require a power source. However, the subsequent charge amplifier does need power.

Typical application scenarios (for dynamic measurement only)

Engine and combustion research:
- Measurement of explosion pressure in the cylinder of an internal combustion engine - This is the most classic application. Monitor the combustion process and analyze detonation.
- Pressure pulsation in the combustion chamber of a turbine engine.
Explosion and shock wave physics:
- Measurement of explosion shock wave pressure, ballistic impact pressure, and weapon development.
Fluid dynamics research:
- Measurement of pressure pulsation, turbulence, and cavitation in high-speed fluids.
- Monitoring of water hammer effect.
Industrial process monitoring:
- Monitoring of pulsation pressure in compressors and pumps for fault diagnosis (such as detecting cavitation and valve hammering).
- Monitoring of pressure in the mold cavity of injection molding machines.
Acoustics and vibration:
- Can be used as the core of a high-performance microphone to measure sound pressure.
Aerospace:
- Wind tunnel testing, measurement of surface pressure pulsation on aircraft.

Comparison with Piezoresistive Pressure Transmitters (Static vs. Dynamic)

Characteristics	Piezoelectric Pressure Transmitter	Piezoresistive Pressure Transmitter
Measurement Principle	Piezoelectric Effect (Dynamic Charge Generation)	Piezoresistive Effect (Resistance Change)
Core Measurement Object	Dynamic Pressure, Pressure Change Rate	Absolute Pressure Value (Static + Dynamic)
Static Pressure Response	Cannot Measure (Output Attenuates to Zero)	Can Measure Precisely
Frequency Response	Extremely High (kHz ~ MHz)	High (Typically Up to kHz Level)
Output Signal Type	Charge (Requires Amplification) or Integrated Amplified Voltage	Bridge Voltage (mV/V) or Standard Current
Power Supply Required	Sensor Itself Does Not Require, Amplifier Does Require	Requires External Power Supply
Main Applications	Combustion, Explosion, Impact, Pulsation, Acoustics	General Industrial Process Control, Automotive, Medical
Cost	Usually Higher (Especially High-Performance Models)	From Low to High, Wide Range

Piezoelectric pressure transmitters are the "high-speed cameras" and "special scouts" in the field of dynamic pressure measurement. They are not designed for conventional, slowly varying industrial process control but rather serve as precision instruments for capturing transient, rapidly changing pressure phenomena.

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Xi 'an Qinwei Instrument Factory (General Partnership Enterprise)
No. 143, Sanqiao Street, Xi'an City, Shaanxi Province, China
https://www.radarlevelgauges.com/

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