ULTRASOUND THERMAL ANEMOMETER WITH AN ARRANGEMENT OF AUTOMATIC RESTORATION OF PRECISE CHARACTERISTICS OF MEASUREMENTS Russian patent published in 2008 - IPC G01W1/02 

FIELD: invention refers to meteorological instruments and may be used for measuring of wind speed and air temperature with the ultrasound method.

SUBSTANCE: arrangement has a pair of oriented toward to each other ultrasound radiators and receiving sets, a connected with them device for measuring time intervals switched to the main computing device. Additionally the arrangement has an electronic sensor of air temperature, a comparison device, an additional computing device, a wind-proof box-container and a sensor of the signal of its closing. Moreover in the moment of the beginning of measurements the measuring tract of the ultrasound thermal anemometer and the electronic sensor of air temperature are placed in the wind-proof box-container. The output of the main computing device of the ultrasound thermal anemometer is connected with the first input of the comparison device. The sensor of signal closing the box-container is switched to the second input of the comparison device. The output of the comparison device is switched to the first input of the additional computing device. To the second input of the additional computing device is switched to the device for measuring time intervals and to the third input - the electronic sensor of air temperature inside the box-container. The output of the additional computing device is switched to the second input of the main computing device.

EFFECT: increase of accuracy of measuring results.

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