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UDV-1000 Ultrasonic Doppler Velocimeter
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| The UDV-1000 probe transmits a continuous ultrasonic wave into the flow. Part of the wave is backscattered by suspending particles traveling with the flow. The backscattered wave has a frequency shift comparing with the transmitted wave. This shift is the so-called Doppler shift, which is proportional to the flow velocity.
The backscattered signal is picked up by the probe. It is later amplified and demodulated, so that a Doppler signal is obtained. By estimating the spectrum of the Doppler signal, we are able to derive the Doppler frequency shift and the spectrum bandwidth, thus to obtain flow velocity and turbulence intensity information. The UDV-1000 employees an Intel 68332 microprocessor and a C32 DSP chip to accomplish real-time measurement of flow velocity. Click Here for more details. |
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| UDV-1000 instrument is a multifunctional intelligent flow meter. It can be mainly used to measure clean water flow velocity and muddy water flow velocity for hydraulic scientific research, hydraulic model testing and environmental monitoring. Specifications: 1. Velocity Measuring Range --- 0.04 ~ -6 m/s2. Accuracy --- +/-4mm/s, or +/-2% of reading, whichever is greater. 3. Measuring Items: (1) mean velocity, (2) velocity turbulence intensity, (3) maximum velocity, (4) minimum velocity, (5) velocity probability density distribution, (6) velocity accumulative probability curve. 4. Result Report --- Automatically printed by the micro-printer. 5. Power Requirements --- AC220/110V +/-10%, 25W. 6. Environment Temperature --- 0 ~ 40deg. 7. Package Dimension and Weight --- 45cm x33cm x18cm, 4kg. Instrument Contents: 1. Ultrasonic sensor.2. The main part of the instrument: (1) ultrasonic wave transmitter and receiver, (2) computer interface, (3) single-board microcomputer (Intel 8096), (4) micro-printer. 3. Regulated Power Supply. Unique Features: 1. The sensor is small and unique. The measuring cross-section is only 3mmx3mm! The main measured point is 5cm in front of the probe. The cross-section of the probe bar is stream lined, so that the flow disturbance is small.2. The instrument can be widely used to measure the clean and muddy water flow velocity. 3. The instrument is multifunctional. It can automatically print 6 important items. 4. The instrument is sensitive, accurate, stable and directional. 5. The instrument is portable. It is compact and light weight. 6. The instrument is easy to use. |
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