Digital pressure measuring device for hydraulic or pneumatic pressure fluids (mediums)

摘要

The digital pressure measuring device is connected with a pressure connection 6 on the housing 1 on a pressure chamber (not represented), in which the respective hydraulic or pneumatic pressure fluid is located. Arranged on both sides of an axis 3 of rotation rotatably mounted in the housing 1 are two Bourdon springs 4 and 5 which are sealed in a pressure-tight fashion at the ends and into which the pressure fluid is introduced. Sleeve-shaped roller supports 9 with deflecting rollers 10 are plugged onto the projecting limbs 7, 8 of the two Bourdon springs 4, 5. A flexible traction cable 11 is guided over said deflecting rollers and wraps around the axis 3 of rotation. The pressure fluid introduced into the Bourdon springs 4, 5 swivels the free limbs 7, 8 in such a way that a torque is exerted via the traction cable 11 on the axis 3 of rotation. The coding disc mounted on the axis 3 of rotation rotates between light emitters and light-emitting diodes, which are arranged on printed circuit boards and are alternately uncovered and covered up again as measuring sensors of digital measured values as the coding disc rotates. <IMAGE>