145Khz high temperature ultrasonic flowmeter transducer in mine
Product Description
Item |
Parameters |
Central Frequency（kHz） |
145KHZ±4% |
Bandwidth |
12kHz |
Comprehensive Sensitivity 0 dB=5 Vp-p；Continuous wave, distance: 5cm |
-34dB min |
Beam Angle（-3dB full-open） |
14±2° |
Static capacitance |
650PF±20% |
Parallel resistance (Minimum) |
700Ω±30% |
Working Voltage (Maximize) Pluse Wave(duty cycle 2%) |
＜500V |
working Temperature |
-20～70℃ |
IP Level |
IP65 |
Case Material |
ABS |
Image:
Frequency- Total resistance Frequency - phase curve
The sensitivity test:
Launch voltage: 5Vp-p；CW；Distance: 5cm
Pointing Angle curve