APPLIED TECHNOLOGIES, INC.

General Sonic Anemometer Information...

A Style Probe Specifications
"A" Style

K Style Probe Specifications
"K" Style

Sx Style Probe Specifications
"Sx" Style

V Style Probe Specifications
"V" Style

Vx Style Probe Specifications
"Vx" Style

CATI Sonic Anemometer
CATI/2

ATI
SPAS

PDF brochure for the SATI available here

PDF brochure for the CATI available here

PDF brochure for the SPAS available here

The Applied Technologies, Inc. Sonic Anemometer/Thermometer is a microcomputer based wind sensor capable of measuring wind velocity in one, two, or three axes with reliable accuracy.

The instrument is designed to measure wind velocity components by transmitting and receiving sonic signals along fixed orthogonal directions. The microcomputer electronics then processes this information and calculates the wind speed in three axes. Since there are no moving parts to come into dynamic equilibrium with the air flow, the Sonic Anemometer/Thermometer responds rapidly to wind velocity fluctuations. It responds linearly to wind velocity and is free from contamination from other velocity components as well as pressure, temperature, and relative humidity. The calibration of the sensor is established by it's design parameters and, therefore, can be used as an absolute instrument.

The probe array was designed to minimize flow distortion created by the supporting base, and to permit a very wide unobstructed coverage of the vertical component. The array may be oriented in any direction, but ideally, the vertical axis is mounted upwind of the two horizontal axes.

The transducers are piezoelectric crystals and completely sealed for rugged outdoor operation. The electronics are all contained within the probe bar. This allows it to be operated as a tower mounted instrument, capable of withstanding hostile environmental conditions. The transducer operation and sonic functions, as well as all computation and transmission of data, are under microprocessor control.

Data from the sonic anemometer/thermometer are digital in nature. The output is RS-232C compatible in a UART asynchronous format. It represents the data in ASCII decimal numbers, and may be connected directly to a computer, transmitted to any digital recording device, or the format is such that it can also be read directly on a terminal. The temperature information is the sonic temperature of the measured winds and is calculated from the vertical sonic measurements.

Features:

  • Single component wind velocity
  • Fast response temperature
  • Extreme accuracy
  • Microprocessor based
  • Solid-state digital operation
  • No moving parts
  • Unattended operation
  • Ease of mounting
  • Rugged construction
  • Low power
  • DC powered

Functions:

  • Ability to do remote commands through the serial port
  • Perform internal calibration to maintain accuracy
  • User programmable data rates and averaging, from 1 min to 200 Hz
  • Select data averaging or median filter
  • Select from several output formats
  • Select from several baud rates
  • Synchronize sonic operation to external trigger
  • Ability to output a trigger pulse for other instruments
  • Select the output "speed of sound" and/or "temperature
  • Enter RH value for more accurate temperature output
  • User adjustments to temperature calculations
  • Change horizontal velocity to wind speed and direction, while retaining vertical and temperature
  • Select data quality algorithm (to remove spikes)
  • User adjustments to data quality calculations
  • Ability to provide data quality status word in output format
  • Turn flow distortion correction "on" or "off"
  • User adjustments to flow distortion calculations
Technical Description for the SATI available HERE

Contact: sales@apptech.com with any questions.