Sensor device and electric power steering apparatus using same
US-2016339948-A1 · Nov 24, 2016 · US
Encoder and encoding method for slip ring
US9523591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9523591-B2 |
| Application number | US-201414577355-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2014 |
| Priority date | Dec 26, 2013 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
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Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, when the encoding belt rotates with the slip ring; and at least one signal combiner connected to the at least one pair of the first sensors, and configured to combine the first sense signal and the first redundant sense signal to obtain a combined sense signal as a first encoded signal. With embodiments of the present invention, a redundant signal is provided by using a redundant sensor, and it is possible to avoid interference of foreign substance, improve stability of encoded signals and ensure normal operation of equipment.
First claim
Opening claim text (preview).
What is claimed is: 1. An encoder for slip ring, comprising: an encoding belt that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, whe…
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Physics · mapped topic
- G01D5/24461Primary
Physics · mapped topic
- G01D5/3473Primary
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9523591B2 cover?
- Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal respectively based…
- Who is the assignee on this patent?
- Nuctech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01D5/24461. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).