FORCE TRANSMITTER OF TENSOMETRIC BALANCE Russian patent published in 1998 - IPC

FIELD: measurement technology. SUBSTANCE: given force transmitter is designed for use in high-accuracy tensometric balance. It incorporates elastic parallelogram member with two power arms joined by small elastic power beams with thinning of end sections that form restoring hinges. Small elastic measurement beam made from silicon monocrystal with resistance strain gauges and end flanges is placed inside parallelogram member in symmetry with reference to restoring hinges of small power beams. One of flanges is made fast to first power arm and the other one is coupled to second power arm via force-transmitting unit. Power arms have internal cantilever protrusions spaced apart over height. Force- transmitting unit is manufactured as one unit together with parallelogram member in the form of platform and two vertical band tie-rods 80-120 μm thick joining platform to cantilever protrusion on second power arm with formation of parallelogram suspension. Measurement beam is anchored with one end flange on cantilever protrusion of first power arm and with other one - on platform of force-transmitting unit. EFFECT: increased measurement accuracy, improved adaptability to manufacture and decreased production cost. 1 cl, 4 dwg