200kHz Ultrasonic Gas Flow Sensor for Air Flow Meter

200kHz ultrasonic gas flow sensor for air flow meter
1. Application
The transducer is used for gas flow measurement. You still need to develop the control board to drive the transducer.
2. Structure
Wire connection: Red is anode, white is cathode
Electricity schematic diagram: No need extra inductance compatible with capacitance
Available caliber: 9.1mm
PZT launches polarization: Anode
3. Testing results of physical acoustics
Please see below sheet.
Testing conditions:
1) room temperature: 25± 5° C
2) reflector: Stainless steel(flat)
3) reflective distance: 30cm
4) pulse emitter:
Pulse emitter model: Agilent 33250A oscilloscope model: Agilent 54622A
Pulse emitter setting conditions: 200kHz, incentive single pulse, 10V range
3. Working conditions (GB9706.1-2007)
Working condition:
Temperature: -10° C~ +50° C
Relative humidity: 30%~75%
Atmospheric pressure: 700PA~ 2.5MPa
Storage and transportation conditions:
Temperature: -40° C~ +70° C
Relative humidity: 10%~100%, including condensation
Atmospheric pressure: 500PA~ 2.5MPa
Transducer reliability:
Case protection level IPX7 test: IEC60529: 2001
Free fall test: GB9706.1-2007
Electromagnet compatibility: GB9706.1-2007
Tension test of electrical cable: GB9706.1-2007
Surface temperature of sensor: IEC60601-2-37: 2001
Ballistic test in low and high temperature: Keep 30mins at 60° C, and 30mins at-10° C, alternative 20 times for a cycle
Water-proof level: IP68