Position sensing system

A sensing element and magnetic field sensing technology, which is applied in the direction of transmitting sensing components, converting sensor outputs, measuring devices, etc. using electric/magnetic devices. Effect

CN108700431AInactive Publication Date: 2018-10-23MTS传感器科技股份两合公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-10-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

Embodiments of the present disclosure include methods and apparatuses for identifying a location of a position encoding magnet (102, 202, 302, 602). Embodiments can include detecting, by a set of sensing elements (104, 204, 304, 604a-604g, 704a-704g) different field components (110, 112) of a magnetic field (108) of the position encoding magnet. The embodiments can also include generating, with data processing circuitry (608, 708), signals associated with the set of sensing elements. The generated signals can include the different field components. The embodiments can also include determiningwith the data processing circuitry a location of the position encoding magnet according to the generated signals, using a calculation to generate a multicomponent-based signal representative of the different field components (506).
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Description

technical field

[0001] Embodiments of the present disclosure relate to a position sensor system for determining the position of a position-encoding magnet. technical background

[0002] The following discussion is provided for general background information only, and is not intended to be used as an aid in determining the scope of the claimed subject matter.

[0003] A reed switch is an electrical switch operated by an applied magnetic field. It typically consists of a pair of contacts on a ferrous metal reed in an envelope, such as a hermetically sealed glass envelope. Contacts can be normally open, closing when a magnetic field is present, or closed, always opening when a magnetic field is applied.

[0004] A Hall effect sensor is a device that changes its output signal (eg output voltage) in response to a magnetic field. Hall effect sensors are commonly used for proximity switching, positioning and speed detection. Using the known magnetic field, the distance of the c...

Examples

Embodiment Construction

[0042] Embodiments of the present disclosure are described more fully hereinafter with reference to the accompanying drawings. Elements identified with the same or similar reference characters refer to the same or similar elements. Various embodiments of the present disclosure may, however, be embodied in many different forms and the invention should not be construed as limited to only the embodiments set forth herein.

[0043] In the following description specific details are given to provide a thorough understanding of the embodiments. However, it will be understood by those of ordinary skill in the art that these embodiments may be practiced without these specific details. For example, circuits, systems, networks, processes, frames, supports, connectors, motors, processors and other components may not be shown or may be shown in block diagram form in order not to obscure the embodiments with unnecessary detail.

[0044] The terminology used herein is for the purpose of de...