DEVICE FOR MEASURING SPATIAL VIBRATION Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: device for measuring spatial vibration has a vibration transducer, first 1 and second 2 subtraction units, adder 3. The device is characterized in that it is provided with four ohmmeters 4-7. The vibration transducer is made in the form of inertial member 8 resiliently coupled with housing 9 with the aid of four elastic strings orthogonal to one another each of which is made of electroconductive rubber enclosed in insulating U-shaped elastic sheath 22, e.g. of rubber of latex. The first ends of the strings are attached to opposite sides of inertial member 8 and are insulated from it. The other ends of the strings are attached to the housing opposite walls. The string ends are insulated from them passing through the walls and are connected to the inputs of ohmmeters. The outputs of four ohmmeters 4,5,6,7 are pair-wise connected to the inputs of first and second subtraction units the outputs of which are connected to the inputs of adder 3. EFFECT: enhanced accuracy due to enhanced sensitivity and enhanced reliability due to simplified construction. 2 dwg