SU932228A1 - Device for measuring object rotation angle - Google Patents

Description

one

The invention relates to measurement technology and can be used; It is designed to measure the angles of rotation of flexible spatial elements, for example, the twist angles of wires and cables of power lines, communications, a contact network of electrified railways, screw structures, etc.

Devices for measuring the angle of rotation are known, which contain a circular resistance and a contact moving through it in the form of a drop of an electrically conducting fluid, such as mercury 1.

The known device measures angles from 0 to 180. When the structure oscillates, the device will register for dynamic movements of kappa mercury. The quality of the mercury contact closure with time deteriorates as a result of dynamic effects during operation and transportation of the device.

2

Closest to the proposed technical essence is a device for measuring the angle of rotation of an object, comprising a housing designed for mounting on the object to be measured, which is housed in the housing and which occupies a stable position in space of the tambourine and pneumatics. a transducer for body rotation relative to the tandem .2,

However, the device makes it possible to measure the angle of rotation only within one revolution of the body and has a low accuracy when the body oscillates.

The purpose of the invention is to expand the range of measurable angles and increase the measurement accuracy.

Claims (2)

The goal is achieved by the fact that in a device for measuring the angle of rotation of an object, comprising a housing designed to be fixed on the object to be measured, placed in a housing and occupying a stable position in space, an element and a housing rotation converter relative to this element, the housing is filled with liquid, the element is in the form of a float, and the converter is placed inside the float and made durable, multi-turn, its frame is crossed with the body, and electrocontact with the float. FIG. 1 shows a schematic diagram of a device for measuring the angle of rotation; in fig. 2 is a diagram of the device installation on the measured object. Device for measuring the angle. The gate includes a housing I filled with a liquid, a float 2 with ribs 5 and a guide k, electrical resistance 5 bus 6, a cylindrical frame 8 moving along the electrocontact guide 7, a pin 9 using a clamp 10 a rigidly fastening frame 8 with the housing 1, and at the same time, the shaft on which the float 2 is fixed, the locking screw 11 screwed into the housing 1, the clamp 12, the fastening housing 1 on the measurement object, for example, wire 13 and the recorder 1 connected to electrical resistance 5 and bus 6 by a wire (not shown ), passing through the pin 9. Float K 2 has a cylindrical shape and is fixed on pin 9 below the axis of symmetry, which, due to the lifting force, provides it with a stable position in space. Electrical resistance 5 and tire 6 are wound on a cylindrical frame 8 with constant pitch. The guide k is located parallel to the axis of the frame 8, which ensures the movement of the electrical contact 7 along the generator of the frame. Electrical 5, bus 6, frame .8 and electric contact 7 form a multi-turn rheostat transducer. A locking screw 11 fixes the benches 2 relative to the housing 1 in the pauses between measurements. The device works as follows. 9 84 When twisting the wire 13 one-; temporarily, the housing 1 and the frame 8 rotate with it, and the float 2 retains its position. Being in contact with the electrical resistance 5 and the bus 6, the electrical contact 7 moves along the guide C, the resistance of the measuring circuit changes, which is recorded by the recorder. Torsional vibrations of the wire 13 are not recorded by the recorder 14, since the ribs 3 prevent quick turns of the float 2 relative to the housing 1. Placing the electrical resistance along a helical line allows the range of measured angles to be expanded, and the float allows detecting the rotation angle relative to the base position and does not allow recorder torsional vibrations of the wire. Claims An apparatus for measuring an angle of rotation of an object, comprising a housing to be mounted on the object to be measured. in the housing and occupying a stable position in space the element and the transducer of rotation of the housing relative to this element, characterized in that, in order to expand / apazon measured angles and improve measurement accuracy, the housing is filled with liquid, the element is designed as a float, and the transducer is placed inside the float and is made of multi-turn rheostat, its frame is bonded to the housing, and the electrical contact is fixed to the float. Sources of information, rintye taken into account during the examination 1. USSR author's certificate number 11119, cl. G 01 JB 7/30, 1927, 2. USSR author's certificate number 462069, cl. G 01 B 13/18, 1973 (npoTOTtvi)