FIELD: testing.
SUBSTANCE: invention can be used for acoustic tests of a heating and ventilation installation of a vehicle. Essence of the invention consists in the fact that the measuring microphone is installed in the measuring point simulating the zone of the right organ of the driver's hearing, which relative coordinates are pre-determined in the cabin of the vehicle being the carrier of the tested module of the heating and ventilation plant, value of the voltage generated by the power supply source is set taking into account the value of the voltage drop in the communication line of the power supply source with the electric fan of the heating and ventilation unit, wherein voltage supplied to electric fan terminals is controlled by digital voltmeter built in power supply.
EFFECT: increasing the reliability of acoustic tests of vehicle heating and ventilation systems.
1 cl, 3 dwg
