86-755-89345688
Floor 14, Block A, Bldg. 7, Baoneng Tech Park, No. 1, Qingxiang Road, Longhua New Dist., Shenzhen, Guangdong, China (Mainland)
200Khz ultrasonic transducer for gas flow meter
1.IP68 defend class
2.Pulse width:8.2us
3.low price
4.manufacturer's offer
200Khz ultrasonic transducer for gas 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
No | item | parameter | Testing range | |
1 | Centre fre | -6dB | 201kHz | Transducer test |
2 | Wide band | -6dB | 33.2% | Transducer test |
3 | Pulse width | -20dBaverage | 8.2us | Transducer test |
4 | sensitivity | average | -38.3dB | Transducer test |
deviation | ≤0.5 dB | |||
5 | capacitance | average | 570Pf | Transducer test |
deviation | ≤ 20Pf | |||
6 | crosstalk | ≤-52dB | Transducer test | |
7 | Dielectric strength | AC 4000V, above1mA cut off, keep 1 min, then pass | Transducer test | |
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
4.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
1 | Case protection level IPX7 test | IEC60529:2001 |
2 | Free fall test | GB9706.1-2007 |
3 | Electromagnet compatibility | GB9706.1-2007 |
4 | Tension test of electrical cable | GB9706.1-2007 |
5 | Surface temperature of sensor | IEC60601-2-37:2001 |
6 | Ballistic test in low and high temperature | Keep 30mins at 60°C, and 30mins at-10°C, alternative 20 times for a cycle |
7 | Water-proof level | IP68 |
Impedance analysis graph:
testing data of Impedance analysis testing:
