81000

YOUNG Ultrasonic 3D Anemometers

YOUNG Ultrasonic 3D Anemometers

Description

The YOUNG 81000 Ultrasonic 3D Anemometer is a 3D wind sensor with no moving parts to provide a complete picture of the wind.

Features

  • 3D wind sensor with no moving parts
  • Provides a complete picture of the wind
  • Constructed with three opposing pairs of ultrasonic transducers
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$2,750.00
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Details

The RM Young 81000 Ultrasonic 3D Anemometer is a 3D wind sensor with no moving parts. While other 2-D anemometers ignore the vertical wind component, the 81000 provides a complete picture of the wind. Constructed with three opposing pairs of ultrasonic transducers, it provides accurate and reliable wind measurements.

The sensor features robust construction with 3 opposing pairs of ultrasonic transducers supported by stainless steel members. This arrangement provides rigidity to the anemometer while offering a measure of protection to the transducers. The transducers are arranged so that measurements are made through a common volume, thereby improving the validity of the measurement. A fast, 160 Hz sampling rate ensures superior measurement resolution.

The RM Young 81000 Ultrasonic 3D Anemometer features (4) voltage output channels. Serial RS-232 and RS-485 outputs are available as well. For applications requiring synchronized analog measurements, Model 81000V includes four voltage input channels instead of voltage outputs. Wind, sonic temperature, and voltage input data are transmitted serially. For each model, a variety of preset or custom output format options may be selected by the user. The 81000 installs on standard 1" (IPS) pipe. Wiring connections are housed in a convenient weatherproof junction box.
Image Part # Product Description Price Stock Order
YOUNG Ultrasonic 3D Anemometers 81000 Ultrasonic 3D anemometer, voltage & serial outputs
$2750.00
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YOUNG Ultrasonic 3D Anemometers 81000V Ultrasonic 3D anemometer, voltage inputs, serial outputs only
$2796.00
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YOUNG Ultrasonic 3D Anemometers 81000RE Ultrasonic 3D anemometer with extended mast, voltage & serial outputs
$3484.00
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YOUNG Ultrasonic 3D Anemometers 81000VRE Ultrasonic 3D anemometer with extended mast, voltage inputs, serial outputs only
$3492.00
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Image Part # Product Description Price Stock Order
YOUNG 18824 Power supply, 24 VDC, 500 mA
$48.00
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YOUNG 26759 Sensor to PC communications cable, 6 ft.
$26.00
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YOUNG Sensor Cables 18660 Sensor cable, 8 conductor shielded, 22 AWG, per ft.
$1.80
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NexSens A82 Direct-Connect PC Cables A82 RS-232 direct connect PC cable, 100'
$295.00
Usually ships in 3-5 days
NexSens A10 12VDC Power Adapter A10 12VDC to 110VAC power adapter
$39.00
Usually ships in 3-5 days

Questions & Answers

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How much more accurate is the 3D than the regular Ultrasonic Anemometer?
At a wind speed of 0 to 30 m/s, the basic RM Young Ultrasonic Anemometer has an accuracy of +/- 2% or 0.1 m/s while the RM Young Ultrasonic 3D Anemometer has an accuracy of +/- 1% +/- 0.05 m/s.

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The  RM Young 81000 Ultrasonic Anemometer is a high-quality 3-axis wind sensor with no moving parts.  It is perfectly suited for applications requiring fast response, high resolution and three dimensional wind measurements. With no moving parts, the sensor is less susceptible to damage from field deployment and is a good choice over the long term. The “81000 uses ultrasonic sound waves to measure wind velocity,” said Andy Oliver, product manager at the RM Young Company. The sensor measures wind speed based on the time of flight of sonic pulses between pairs of transducers .  The 81000 also measures the speed of sound, an intriguing parameter of its own. “The speed of sound varies depending on the temperature of the air through which the sound moves,” said Oliver.

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