DEVICE FOR MEASURING WHEEL'S TRACTION COEFFICIENT WITH AIRFIELD PAVING Russian patent published in 2007 - IPC G01N19/02 

FIELD: measuring technique.

SUBSTANCE: device has registration unit and force transducer. Registration unit has processor, first and second aerials, radio modem, keyboard, GPS receiver and display. First aerial is connected with first input/output of processor through radio modem. Second input of processor is connected with keyboard. Second aerial is connected with third input of processor through GPS detector. Second output of processor is connected with display. Third output of processor is provided for connection with personal computer. Registration unit additionally has thermal printer, interface first converter and memory unit. Device also has measuring wheel and electromechanical force measuring unit. The latter has amplifier, two temperature detectors, micro-controller and interface second converter. Registration unit has memory unit connected with fourth input and output of processor, which processor has fifth output connected with thermal printer. Measuring wheel of device is mechanically connected with electro-mechanical force measuring unit. Measuring wheels traction force influences on force detector connected with first input of micro-controller through amplifier. Second and third inputs of micro-controller are connected with first and second temperature detectors. Output of micro-controller is connected with output of electromechanical force measuring unit through interface second converter. Output force measuring unit is connected with input of registration unit through cable. Input of registration unit is connected with fifth input of processor through interface first converter.

EFFECT: improved precision of measurement.

4 dwg