145Khz Ultrasonic Transducer For Gas Flow Meter – TG0145KC

Application

The transducer is used for ultrasonic mine air flow meter; use to measure all kinds of mine tunnel airflow.

Technical parameters

Model TG0145KC
Center resonant frequency (kHz) 145KHZ±4%
Bandwidth 12kHz
Launch angle beam (-3dB full angle) 14±2°
Sensitive(0 dB=5 Vp-p; CW; distance: 5cm) -34dB min
Electrostatic capacitance 650PF±20%
Minimum parallel impedance 700Ω±30%
Maximum working voltage (Pulse – 2% duty cycle) 500Vp-p
Operating temperature -20 ~70℃
Storage temperature -40 ~85℃
Protection level IP65
Case Material ABS

The above tests were conducted in 25 ° environment.

Frequency-resistance

Frequency-phase angle

 Sensitivity test:

voltage:5Vp-p; Continuous Wave; distance:5cm

Pointing Angle curve