| Model: | TL0020G |
|---|---|
| Brand: | Hurricane |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Other Electrical & Electronic |
| Label: | air flow sensor , flow meter sensor , flow sensor |
| Price: |
US $15
/ pc
|
| Min. Order: | 50 pc |
| Last Online:21 Jun, 2013 |
200Khz ultrasonic air flow meter sensor
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 |
