Measuring arrangement and measuring process for fluid pressure cylinders

• Main Author: TARASINSKI NICOLAI
• Format: Patent
• Language: English
• Published: 02.04.2013
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; PHYSICS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TARIFF METERING APPARATUS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; TRAILERS; TRANSPORTING; WEAPONS

A measuring arrangement for measuring the movement of a piston within a housing of a fluid cylinder includes a voltage generating arrangement for generating a reference voltage which is coupled to two locations of the cylinder which are spaced from each other in the direction of movement of the piston within the housing, these two locations being separately coupled to a piston movement evaluation arrangement which is also separately coupled to one or more further locations of the cylinder to which the two locations are electrically coupled so as to receive varying measurement voltage(s) as the two locations move relative to the further location(s). The evaluation arrangement uses the measurement voltage(s) to determine the piston movement.