2MHz Piezoelectric Ultrasonic Transducer Depth Measurement for ADCP
Product Description
2MHz Piezoelectric Ultrasonic Transducer Depth Measurement for ADCP
1. Introduction
An Acoustic Doppler Current Profiler (ADCP) measures ocean currents using the principle of “Doppler shift.” If you have heard a train whistle in the distance, you are familiar with Doppler effect. As the train gets closer, the whistle pitch gets higher. As the train moves away, the whistle pitch gets lower. The change in pitch is proportional to the speed of the train.
An acoustic Doppler current profiler (ADCP) is a hydroacoustic current meter similar to a sonar, used to measure water current velocities over a depth range using the Doppler effect of sound waves scattered back from particles within the water column.
2.Technical parameters：
Items | Technical Parameters | Image | |
Name | ADCP ultrasonic transducer |
| |
Model | PHW-2M-01T | ||
Frequency | 2MHz±5% | ||
Detection Distance | 0.03 ～ 2m | ||
Minimum Parallel lmpedance | 3.5Ω±20％ | ||
5600pF±20％ @1KHz | |||
Sensitivity | Emitting voltage:24Vpp，Distance:0.3m，Echo Amplitude：4.5V | ||
-40～+80℃ | |||
≤3Kilos or 0.3MPa | |||
| (Beamwidth) Half-power Beam Width@-3dB:2°±0.5， Sharp Angle:5°±1 | ||
Housing Material | composite material | ||
Usage | |||
See the product structure drawing | |||
Protection Level | IP68 | ||
Weight | 11.5g±5％（Length：1m） | ||
Wiring Instructions | Red+，White-，Black: shielded wire； （temperature sensor is optional） | ||
Admittance Curve | Product Structure Diagram | ||
| |||
Block diagram of ultrasonic transducer :
Schematic Diagram of Temperature Sensor: