hot-wire anemometer


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hot-wire anemometer

n.
An anemometer consisting of an exposed wire through which electric current is passed and whose temperature is measured. The amount of power necessary to keep the wire at constant temperature given loss of heat via convection with the moving fluid serves as a measure of the fluid's velocity. Also called thermal anemometer.
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The velocity profiles of the blowing jets were measured by a hot-wire anemometer. Also, in order to clarify the effects of the control on the vortices related with the cavity tone, the Coherent Output Power (COP) was computed by the simultaneous measurement of the velocity fluctuations in the cavity flow and sound pressure.
Using one-dimensional hot-wire anemometer, it is feasible to measure drag coefficient of model from position equal to 1.75 times the truck model length with a suitable accuracy.
Apparatus model Probe TSI-9555-P Hot-wire anemometer YOKOGAWA-MV100 PT 100 sensor humidity sensor Area Rae IAQ TVOC sensor (PGM-5210) CO2 sensor METREL Poly Hot-wire anemometer (MI-6401) Dry-bulb sensor Global sensor Apparatus model Operative range TSI-9555-P 0.1-30 m/s (20-5906 fpm) YOKOGAWA-MV100 0-100[degrees]C (32-212[degrees]F) 0-100% RH Area Rae IAQ 0-500 (ppm) (PGM-5210) 0-2000 (ppm) METREL Poly 0.1-9.99 m/s (20-1967 fpm) (MI-6401) -20-60[degrees]C (-4-140[degrees]F) -10-120[degrees]C (14-248[degrees]F) Apparatus model Accuracy TSI-9555-P 0.02 m/s (3.9 fpm) YOKOGAWA-MV100 0.2[degrees]C (0.36[degrees]F) 2% RE Area Rae IAQ 0.1 ppm (PGM-5210) 10 ppm METREL Poly 0.05 m/s (9.8 fpm) (MI-6401) 0.5[degrees]C (0.9[degrees]F) 1.0[degrees]C (1.8[degrees]F) Table 3.
Hot-wire anemometer DO 9847K is used for experimental test of computed data.
Tanaka (1970 & 1974) [5,6] carried out experiments on dual jets which is issued from two parallel slot nozzles using constant temperature hot-wire anemometer. Murai et al (1976) [7] conducted experiments on twin plane incompressible jets issuing at an angle from the nozzle exit plane.
Air flow rate was measured using a hot-wire anemometer. All values were transferred to the PLC and from there to the human machine interface (HMI) WinCC.
The hot-wire anemometer employs a probe tipped with an electrically heated sensor typically composed of two platinum resistance temperature detectors (RTDs) or two beaded thermistors.
For wind tunnel models of depressed roads or street canyons, hot-wire anemometer velocity and turbulence, pressure distribution, and receptor point concentration measurements were made.
Some examples of these include pressure and flow devices that use the thermal properties of thin-film materials, much like a microminiature version of a hot-wire anemometer.
Primary Data Acquisition Equipment - Purpose and Accuracy Equipment Purpose Accuracy * Thermocouples, Type Temperature [+ or -] 0.9 [degrees]F T measurements (0.5 [degrees]C) or 4% Flow Hood Measure supply [+ or -] 3% air volumetric airflow Power Quality Measure power [+ or -] 2.5% Analyzer drawn by server simulators Hot-Wire Anemometer Air velocity [+ or -] 3% over measurements [+ or -] 3 ft/min ([+ or -] 0.015 m/s) * Based on the equipment reading The data acquisition for this project was broken into two categories: