Water/Wastewater
Non-Contact LaserFlow Velocity Sensor
Sep 16 2012
Laser Doppler velocity profiling is a first in non-contacting flow measurement technology for open channels. Teledyne Isco’s (USA) LaserFlow Velocity Sensor utilises technology that sees below the surface. Velocity measurements are achieved by penetrating the surface for multipoint subsurface velocity readings. A non-contacting ultrasonic transmitter measures the liquid head height to determine the wetted area. Multiplying the wetted area by the average velocity yields the flow rate. Flow during surcharge conditions can be measured with an optional, integrally-mounted continuous-wave Doppler area velocity sensor.
Digital Edition
AET 28.2 April/May 2024
May 2024
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