MPTW800 high frequency dynamic pressure sensor

The MPTW800 series is an ultra-rugged, piezoresistive dynamic pressure sensor precision-engineered to capture fast-transient pressure fluctuations within volatile aerodynamic and thermodynamic testing environments. Utilizing advanced micromachined MEMS silicon cores shielded by an oil-filled media isolation capsule, this transducer delivers an extraordinary natural frequency response up to 400 kHz and maintains rigorous accuracy across an extended thermal profile from -55°C to +150°C. Developed specifically to fulfill strict B2B aerospace requirements, the MPTW800 series serves as a premium, seamless drop-in replacement for industry-standard Kulite pressure sensors in flight testing and wind tunnel research.

 

Key Features

• 400 kHz High-Frequency Bandwidth: Engineered with an unamplified, front-design pressure core that completely eliminates internal dead-volume resonance, allowing researchers to accurately monitor shockwaves, turbulent boundary layer interactions, and rapid acoustic transients in real time.

• Rugged Silicon-on-Silicon MEMS Construction: Features a fully active four-arm Wheatstone bridge dielectrically isolated sensor element welded to a stainless steel capsule body, ensuring minimal power consumption, zero outgassing, and outstanding long-term structural repeatability.

• Continuous 70 MPa Heavy-Duty Rating: Built inside a premium 316L or 17-4PH stainless steel housing capable of managing dynamic pressure cycles up to 70 MPa (10,152 PSI), guaranteeing ultimate explosion-proof containment and structural safety during severe testing profiles.

• Frictionless Kulite Cross-Reference Integration: Matches the precise mechanical threads, mounting interfaces, and millivolt/digitally-compensated signal outputs of heritage Kulite transducers, drastically lowering engineering redesign overhead and accelerating procurement cycles.

 

 

Performance Parameters
Main Performance Indicators
Specification	Description
Range	Absolute Pressure: Selectable between 0~70MPa
	Sealed Gauge Pressure: Selectable between 0~70MPa
Units	MPa/ bar/kPa/hPa/ psi/mmHg
	“Custom units available upon request
Accuracy (Integrated Non-linearity,Hysteresis, Repeatability)	A1:0.2%FS’BFSL
	A2:0.1%FS’BFSL
	“Custom accuracy available upon request
Overload Pressure²	2xFS
Burst Pressure³	3xFS
Working Principle	Four-arm Wheatstone bridge silicon-based MEMS chip
Chip Resonant Frequency	>400KHz

 

Mechanical Performance
Specifications	Description
Pressure connection	See selection table, customizable
Vibration Impact on Sensor Accuracy	<1ppmFS/g
Impact connection	Maximum 20g at 10-2500Hz; Impact time not exceeding 20ms
Housing Material	Standard 316L/17-4PH stainless steel (“Other materials available upon request)
Measuring Medium	All fluids compatible with 316L/17-4PH stainless steel
Weight	≤15g;     weight of cable and electrical connectors is additional and depends on selection
Electrical performance
Power Supply/Output	See selection table, customizable
Circuit Bandwidth	10Khz
Actual Frequency Response	Depends on system installation
Power-up Time	D    <200ms
Zero and Full-Scale Output Range	D    See temperature performance
	“Custom requirements available upon request
Insulation Resistance	≥100MO@500VDC
Dielectric Strength	Leakage current≤ 5mA@50VACRMS
Maximum Operating Current	D  <25mA
Output Impedance	D  <1500
Long-term Stability	Typical value ±0.1%FS
Electrical Connection	See selection table, customizable
Temperature Performance4
Specifications	Description
Temperature Compensation Range	Selectable within the range of -55℃ to 150℃
Storage Temperature Range	-55℃-150℃