Ultrasonic Anemometer 2D
| Model Number: | 4.3820.xx.xx |
|---|---|
| Manufacturer: | Adolf Thies GmbH & Co. KG |
The 2D Ultrasonic Anemometer detects the horizontal component of the wind speed and wind direction. With no moving parts the anemometer is free from wear and needs no maintenance or calibration
Overview
Overview
The 2D Ultrasonic Anemometer detects the horizontal component of the wind speed and wind direction. With no moving parts the anemometer is free from wear and maintenance and needs no calibration. The sensor arms are automatically heated if necessary ensuring continued operation in snow and during icing events. The electronics of the ultrasonic anemometer is based on the latest DSP (digital signal processor) technology.
Measuring principle
Ultrasonic anemometers measure wind speed by detecting the difference in time taken for an ultrasonic pulse to travel in each direction between pairs of transducers caused by movement of the air. This method allows accurate measurement even at low wind speeds as there is no mechanical inertia to overcome. The lack of mechanical inertia also allows measurements to be taken at high frequency allowing precise time dependent measurement. Sonic temperature is also available in the output data.
A number of sensor variants are available to cover a wide range of applications.
Specifications
| Wind Speed | |
|---|---|
| Measuring range | 0.01 – 75 m/s |
| Accuracy | ±2% of measured value for >5ms |
| Resolution | 0.01m/s |
| Wind Direction | |
| Measuring range | 0-360° |
| Resolution | 1° |
| Accuracy | ±1º |
| Acoustic Temperature | |
| Range | -50oC to + 70oC |
| Accuracy | ±0.5K to 35m/s |
| Resolution | 0.1K |
| General | |
| Data output serial | RS422 / RS485 |
| Data output analogue | 0-20mA, 0-10V or 4-20mA, 2-10V |
| Analogue inputs | Up to three possible |
| Operating voltage - Sensor | 8-78VDC or 12-55 V AC 1.5W typical |
| Heating (Model Dependent) | 24 V AC/DC; 80W |
| 48 V AC/DC: 280W | |
| Operating temperature | -50° to +80° C |
| Electrical connection | Multi-pin plug |
| Mounting | onto mast tube 1.5” Ø |
| Dimensions | Ø287mm x 424mm |
| Protection | IP67 |
| Weight | 2.5 Kg |
| Material of housing | Stainless steel |
Available Variants
The sensor is available in a number of variants covering heating and data output options. For full details please follow the link: Thies_Ultrasonic_Options
Downloads
Sales & Support
Contact Biral for more information
To find out more about this instrument or to discuss your application requirements please do not hesitate to contact Biral.
- email enquiries@biral.com (or use the Request More Information button below the product photograph)
- Telephone to 01275 847787 (from the UK) or +44 1275 847787 (International)
After Sales Support
Biral offers free advice and technical support for the lifetime of the instruments we sell. Once you have purchased the unit you can always contact us for help using the links on our Technical Support page.
