| 摘要 |
FIELD: hydraulic and pneumatic drives. ^ SUBSTANCE: invention relates to hydraulic and pneumatic drives and devices for checking positioning of working member in hydraulic or pneumatic drives. Proposed cylinder contains housing 1 of cylinder with inlet and outlet channels 2 and 3, piston 4 with hollow rod 5. Measuring unit is installed inside hollow rod 5 and it contains optical unit 6 with radiation source 7, radiation receiver 8 and signal transmitter 9. Measuring unit has housing 10 coupled with rod 5 provided with at least one insert 11 inside forming inner surface with projections 12 arranged in succession inside which optical unit 6 coupled with cylinder housing 1 is arranged. ^ EFFECT: improved accuracy of measurements, facilitated manufacture and operation, enlarged technological capabilities. ^ 21 cl, 4 dwg |
