METHOD OF CHECK OF DEVICES FOR MEASUREMENT OF SPEED OF AIR FLOW AND FACILITY FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 2009 - IPC G01W1/18 G01D18/00 

FIELD: measuring technology.

SUBSTANCE: inventions refer to instrument engineering and can be used for calibration of instruments measuring mobility of air (anemometres and thermo-anemometres). The method is implemented by uniform motion of a calibrated anemometre in immobile air at a specified rate along a reference section of path. The facility consists of an aerodynamic pipe enclosing components of the facility and made in form of an assembled portable frame insulating the section of the measurement path from external thermo and aerodynamic influences. Also the following is inserted inside the pipe: the reference section of path of motion of calibrated gauge, a motion activator with a regulator of step motion speed change, a timer for recording time of motion of the calibrated instrument along the reference section of the path switched synchronously with the beginning of motion, a carriage with a roller mechanism whereon the calibrated anemometre is attached and a contact lever switching the timer on at the moment of carriage motion beginning, and a traction-drawing mechanism connecting the traction activator with the carriage. Further, the facility consists of a source of electric power with a mechanism facilitating stability of activator operation.

EFFECT: upgraded accuracy of measurement of air flow speed.

2 dwg