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| Brand | Gill |
|---|---|
| Origin | United Kingdom |
| Instrument Type | Ultrasonic Anemometer |
| Resolution | 0.01 m/s |
| Measurement Sampling Frequencies | 1, 2, 4, 8, 10, 16, 20 Hz (32 Hz optional) |
| Accuracy | < ±0.5% @ 20°C (Speed of Sound), < ±1° RMS (Wind Direction), < 1% RMS (Wind Speed @ ≤30° incidence) |
| Operating Temperature | -40°C to +70°C |
| Relative Humidity Range | 5%–100% RH |
| Ingress Protection | IP65 |
| Wind Speed Range | 0–45 m/s |
| Wind Direction Range | 0–359° |
| Ultrasonic Temperature Range | Not applicable (HS-50 model lacks integrated PRT) |
| Output Interfaces | RS422 full-duplex, 8 data bits, 1 stop bit, no parity |
| Baud Rate | 2400–115200 bps |
| Output Format | UVW vector components + Speed of Sound |
| Power Supply | 9–30 V DC (<150 mA @ 24 V DC or 300 mA @ 12 V DC) |
| Dimensions | 1305 mm × 344 mm × 120 mm |
| Weight | 2.5 kg |
| Housing Material | Stainless steel |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-560 Spherical 3D Ultrasonic Anemometer |
| Instrument Type | Ultrasonic Anemometer |
| Wind Speed Range | 0–50 m/s, Resolution: 0.01 m/s, Accuracy: ±0.1 m/s (0–10 m/s), ±1% of reading (11–30 m/s), ±2% of reading (31–50 m/s) |
| Wind Direction (u/v) | 0–359°, (w): ±60°, Resolution: 1°, Accuracy: ±1° |
| Temperature Range | −20 to +72 °C, Resolution: 0.01 °C, Accuracy: ±2.0 °C |
| 3D Accelerometer Range | ±2 g (u/v/w), Tilt (Pitch/Roll): ±90° |
| Measurement Path Length | 60 mm |
| Dimensions | 10.2 cm × 10.2 cm × 24.9 cm |
| Weight | 225 g |
| Power Supply | 5–32 VDC @ 500 mW |
| Output Interfaces | RS-232, RS-422, 3.3-V UART |
| Data Output Frequencies | 1, 2, 5, 10, 20, 25, 50, 100 Hz |
| Ultrasonic Transducer Frequency | 60 kHz |
| Housing Material | Aerospace-grade aluminum |
| IP Rating | NEMA-4X equivalent (sensor head) |
| DL422 data logger | IP67 |
| Brand | GILL |
|---|---|
| Origin | United Kingdom |
| Model | WindMaster HS |
| Instrument Type | Ultrasonic Anemometer |
| Resolution | 0.01 m/s |
| Measurement Range | 0–45 m/s |
| Accuracy | <1.5% RMS @ 12 m/s |
| Operating Temperature | −40 °C to +70 °C |
| Relative Humidity | 5–100% RH |
| IP Rating | IP65 |
| Output Frequency | Up to 32 Hz |
| Ultrasonic Temperature Range | −40 °C to +70 °C |
| Wind Direction Accuracy | 2° @ 12 m/s (standard), 0.5° @ 12 m/s (customizable) |
| Sonic Temperature Resolution | 0.01 °C |
| Sound Speed Accuracy | < ±0.5% @ 20 °C |
| Sampling Frequency | 20 Hz or 32 Hz (user-selectable) |
| Analog I/O | 4-channel 14-bit ADC (input/output configurable) |
| Digital Interface | RS-232/422/485, ASCII or binary protocol, baud rate 2400–57600 |
| Power Supply | 9–30 VDC, 55 mA @ 12 VDC |
| Dimensions | 956 × 347 × 120 mm |
| Weight | 2.96 kg |
| Brand | METER |
|---|---|
| Origin | USA |
| Model | ATMOS 22 |
| Resolution | 0.01 m/s |
| Wind Speed Range | 0–30 m/s |
| Wind Gust Range | 0–30 m/s |
| Wind Direction Range | 0–359° |
| Wind Direction Accuracy | ±5° |
| Tilt Range | 0–180° |
| Tilt Accuracy | ±1° |
| Dimensions | 10 cm (diameter) × 16 cm (height) |
| Cable Length | Standard 5 m (customizable) |
| Operating Temperature | −40 to +50 °C |
| Power Supply | 3.6–15.0 VDC |
| Typical Measurement Current | 0.125 mA |
| Standby Current | 0.125 mA |
| Measurement Interval | 110 ms (typical) |
| Startup Time (SDI-12 Ready) | 10 s (typical) |
| Compliance | ISO 9001:2015, ISO/IEC 17050:2010 (CE) |
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