Air-ultrasonic depth sensor, 8 ads portable flowshark pulse manual – ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 User Manual
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2-8
ADS Portable FlowShark Pulse Manual
1
Ground Plate
2
Acoustic Coupling Layer
3
Temperature Sensor
4
Flow Velocity Sensor
5
Level (Depth)/Height Sensor (optional)
6
Electronics
7
Pressure Sensor (optional)
8
Pressure Measurement Duct (optional)
9
Cable Gland
Water-Ultrasonic Combination Sensor with additional pressure measurement cell for installation at pipe bottom
Air-Ultrasonic Depth Sensor
ADS offers an air-ultrasonic depth sensor for the Portable FlowShark Pulse that uses
horizontal sensor crystals to determine the distance (range) from the sensor to the
flow surface based on the time difference between transmitting and receiving a pulse
reflected off the flow surface (the transit-time method). The flow depth is calculated
by subtracting the range from the pipe height, while compensating for the sensor
offset.
The air-ultrasonic depth sensor is not effective for depth measurement when the
sensor becomes submerged or depths occur within 4 inches of the sensor crystal,
known as the deadband.