SU1483499A1 - Devic for contactless collection of information from rotating object - Google Patents

Abstract

The invention relates to measuring equipment with inductive coupling and can be used in near telemetry systems for measuring parameters of rotating objects with the transfer of information in a contactless manner. The aim of the invention is to improve the accuracy and improve the specific mass = overall indicators. The device contains the stator 1, the rotor 2, with the windings 3, the bar 4 with sensors 5 mounted on it with the help of holders 6. The ends 7 of the rotor windings are brought out through the holes 9 and connected to the electronic unit mounted on the rotor. The ends of the sensor conductors are connected to connectors mounted on the stator. Due to the separation of the windings of adjacent channels, their mutual influence is reduced, which increases the accuracy and contributes to a reduction in the length of the device. 1 il.

Description

and improving the specific mass-mass nitrodiodes, etc. If applied, personal indicators.

The drawing shows the proposed device.

The device contains a stator 1, a rotor 2 with windings 3, a strip 4 with sensors 5 mounted on it with the help of holders 6. Additionally, ends 7 and 8 of the windings conductors and sensors and holes 9 for example, microthrottles are shown, according to the law of electromagnetic induction, during the action of current pulses in the windings in the sensors will be induced EMF and at the ends 8 of the TC voltage pulses. The latter can be read and processed using an electronic unit mounted on a fixed part. Ends 8 sensors nitodiodes, etc. If applied,

For example, microthrottles, then, in accordance with the law of electromagnetic induction, during the action of current pulses in the windings in the sensors, EMF will be induced and the voltage pulses are applied to the terminals 8 at TC. The latter can be read and processed using an electronic unit mounted on a fixed part. Ends 8 Dates

water ends. The ends of the windings of the joints can be connected, for example, with

with the electronic unit mounted on the rotor, and the ends of the sensor conductors - with connectors mounted on the stator.

The device works as follows.

Let the axis of rotation of the object under study be aligned with the axis of the device and the rotor 2 rotates. If current pulses are applied to windings 3, an alternating magnetic field will be induced in the nearby space, to which sensors 5 mounted on holders 6 mounted on strip 4 are sensitive. All rotor windings are autonomous and are not galvanically interconnected Information on any winding is read using only one sensor, i.e. the one closest to it. The distance between the winding and the sensor located above it should be 1 ... 2 mm. The distance between any sensor and the windings of adjacent channels should be 5 ... 10 times greater. The sensors are sensitive to the magnetic field of the windings at a distance of 1 ... 2 mm and are practically insensitive at a distance of 5 ... 10 times greater. They are also sensitive to a field parallel to the axis of the device, and not sensitive to a field perpendicular to the axis. From this, it follows that the influence of channels on each other can be eliminated using the geometrical arrangement of the windings and sensors in space.

connector (not shown mounted on the stator 1. From the connector information is fed to the electronic unit mounted on the stationary part.

The diameters of the rotor and stator in the device can be any. The number of channels can also be any. Due to the design described in the specific device, the specific

length 2 mm / channel. This is an order of magnitude better than in known devices. The proposed device can be used for bench testing of aviation, automobile, etc.

motors, electric motors and any other machines.

Claims (1)

Invention Formula A device for contactless information retrieval from a rotating object, containing a stator with magnetic field sensors installed along it along the axis of rotation and a rotor with ring windings located opposite the magnetic field sensors of the corresponding channel with the same gaps, characterized in that, in order to increase the accuracy of transmission and improve the specific weight and size parameters, the ring windings are made of two types that differ in diameter of the winding of different diameters alternate along the axis of rotation, and the distance between the sensor and the windings of adjacent channels are 5-10 times larger than the gap between the windings and sensors of one channel.