| 摘要 |
FIELD: physics; measurements. ^ SUBSTANCE: present invention pertains to measuring technology and can be used for measuring pressure of a medium. The device has a housing, detecting element, an index plate, pointer and a glass. In the tail end part of the housing, there is a stepped hole in form of two or more cylinders of different diameters, located on the same axis. In one opening, a guide bushing is fitted, along the axis of which there is an opening, through which the detecting element passes with little clearance. The detecting element is in form of a spiral multi-turn tube spring, coiled from a pipe, whose cross-section is close to plane-parallel. The detecting element can turn along its axis in the guide bushing. At the movable end of the detecting element, a pointer is fixed, with an indention on the side of the index plate, in which the movable end of detecting element is fixed. At the other side, there is a projection, which goes into the indention in the glass with clearance. The indention lies on the axis of rotation of the pointer, and serves as the limit stop of the pointer with the detecting element when external overloading is acting on the manometer. ^ EFFECT: simplification of the design, increased reliability and stability to loading and increased accuracy of measurement. ^ 3 cl, 3 dwg |
