This anemometer measures wind speed and direction based on the difference in arrival time of ultrasonic waves generated by wind movement.
Designed by STRATOVISION in Japan
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What is it? This is an anemometer that measures wind speed and direction based on the difference in arrival time of ultrasonic waves generated by the movement of the wind. Unlike traditional mechanic…
Read More…This is an anemometer that measures wind speed and direction based on the difference in arrival time of ultrasonic waves generated by the movement of the wind. Unlike traditional mechanical anemometers (such as windmill types), it measures the wind contactlessly, allowing it to quickly respond to and accurately measure wind speeds ranging from light breezes to strong gusts.
Traditional ultrasonic anemometers are generally expensive and large devices used mainly for meteorological observations and industrial measurements. However, this anemometer, named ULSA, is characterized by its very compact, palm-sized design.
There is also a model that can be directly stacked with the M5Stack. (-> ULSA M5B)
I am a Japanese maker who is independently developing a paraglider-style payload recovery system for weather observation balloons.
Initially, the ultrasonic anemometer ULSA was developed to measure the airspeed of payload in the severe upper-atmosphere conditions (however, please note that the ULSA being sold is only compatible with ground-level measurements).
By purchasing the anemometer, you will be providing funding for my balloon development project. I would be grateful for your support of my endeavors through the ultrasonic anemometer ULSA.
| Mechanical Spec. | |
|---|---|
| Dimensions | 75mm (D) x 56mm (H) |
| Mass | 85g |
| Ingress protection | None (non-waterproof) |
| Temperature range | 0~60℃ (No Condensation) |
| Housing Material | HP Multi-Jet Fusion PA12 |
| Mounting hole | 1/4-20UNC |
| Measurement Spec. | |
|---|---|
| Supported Units | metric |
| Output Rate | 1 / 2 / 5 / 10 Hz |
| Measurement Items | Wind Speed / Wind Direction / Airspeed (Nose) / Virtual Temperature / Sound Speed |
| Wind velocity resolution | 0.01m/s |
| Wind speed Precision | 5% rdg. |
| Wind speed Range | 0~20m/s |
| Wind direction resolution | 1° |
| Wind Direction Measurement Precision | ±1°@12m/s |
| Wind Direction Range | 0~359° |
| Electrical Spec. | |
|---|---|
| Supply voltage | DC5 V ± 5% (microUSB or JST ZH Series Connector) |
| Power consumption | 385mW |
| Signal Output | USB Serial (CH340E) or UART (3.3V) |
| Bitrate | 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps |
Ultrasonic Anemometers do not generate inertia or friction like traditional mechanical anemometer, allowing for a fast response and a high sensitive measurement.
Conventional thermal anemometers and pitot tube speedometers have sharp directivity, making flexible installation and operation challenging. However, an ultrasonic anemometer can correctly capture wind speed and direction from any 360° horizontal direction.
ULSA is individually calibrated before shipment to check that it meets the specifications. For wind speed calibration, a high-quality Japanese-made hot-wire anemometer with pressure calibration and a Japanese-made wind tunnel for anemometer calibration are used.
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