145Khz Ultrasonic Transducer For Gas Flow Meter – TG0145KC
The transducer is used for ultrasonic mine air flow meter; use to measure all kinds of mine tunnel airflow.
|Center resonant frequency (kHz)||145KHZ±4%|
|Launch angle beam (-3dB full angle)||14±2°|
|Sensitive(0 dB=5 Vp-p; CW; distance: 5cm)||-34dB min|
|Minimum parallel impedance||700Ω±30%|
|Maximum working voltage (Pulse – 2% duty cycle)||500Vp-p|
|Operating temperature||-20 ~70℃|
|Storage temperature||-40 ~85℃|
The above tests were conducted in 25 ° environment.
voltage:5Vp-p; Continuous Wave; distance:5cm
Pointing Angle curve