BENCH FOR TESTING VIBRATIONS OF VEHICLES Russian patent published in 1995 - IPC

FIELD: testing equipment. SUBSTANCE: bench has controlled DC power source, unit of controlled delay made up of a low frequency filter provided with a unit of capacitors of variable capacity, source of random signals made up of an autotransformer, transformer, rectifier , and smoothing capacitor connected in series, converter of random signals made up of an element for extracting of random signal, and three transistor amplifiers connected in series. The capacitor of variable capacity is set at output of the second amplifier. The actuating members of the bench consist of pulsator with electrically controlled hydraulic valve of proportional type with two control windings, two converters of suspension vibrations consisting of multivibrator , correlating amplifier, capacitor, inductive coil, detector, output resistor connected in series, filter for extracting average level of vibrations, unit for extracting RMS of vibrations, and DC meters. The coil is made to provide entering a rod, which is secured to a vehicle, inside the coil. EFFECT: improved design. 5 dwg