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Devices, systems and methods for determining and compensating for offset errors arising in inductive sensors

A technology of inductive sensor and inductive coupling, which is used in converting sensor output, using electromagnetic/magnetic devices to transmit the direction of sensing components, instruments, etc.

Pending Publication Date: 2020-03-03
SEMICON COMPONENTS IND LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method suffers from drift and other problems over time during use, and often requires a skilled technician to periodically null the inductive sensor

Method used

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  • Devices, systems and methods for determining and compensating for offset errors arising in inductive sensors
  • Devices, systems and methods for determining and compensating for offset errors arising in inductive sensors
  • Devices, systems and methods for determining and compensating for offset errors arising in inductive sensors

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Experimental program
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Embodiment Construction

[0033] Various embodiments described herein relate to devices, systems, and methods for determining and compensating for offset errors induced in an inductive sensor due to direct coupling of field coil connection leads to one or more leads of a receive coil. Various embodiments described herein also relate to devices, systems, and methods for inductive sensors, whether using a two-phase or three-phase system, integrated with a single IC design configured to and Operates with and is switchable to operate with 2-phase and 3-phase inductive sensor designs. Various embodiments described herein also relate to devices, methods, and systems configured to compensate for amplitude mismatches that occur in receive coils due to non-ideal receive coil designs. Various embodiments described herein also relate to devices, methods, and systems configured to calibrate and compensate for orthogonality errors that occur in receive coils due to non-ideal receive coil alignments. Various embodi...

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PUM

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Abstract

Devices, systems and methods for determining and compensating for offset errors arising in inductive sensors. Devices, systems, and method for detecting, determining and compensating for offset errorarising in inductive position and torque sensors are described. In accordance with at least one embodiment, an offset coil can be configured for use within an inductive sensor and include a first trace and at least one second trace. The first trace and the at least one second trace may be drawn within a stator of an inductive sensor. The first trace and the at least one second trace may be drawn within the stator proximate to a pair of excitation coil connecting leads, drawn on a first plane within the stator, and on at least one plane substantially parallel to the first plane such that an excitation coil flowing through the pair of excitation coil connecting leads induces an offset coil signal in the first trace and at least second trace.

Description

technical field [0001] The techniques described herein generally relate to devices, systems, and methods for determining an angular or linear position of an object and / or a torque applied to an object. More specifically, the techniques described herein generally relate to electronic devices, systems, and methods that utilize electromagnetic principles, such as induction, to determine an object's angular or linear position and / or torque applied to an object. Background technique [0002] Position sensing devices (including inductive position sensors, inductive torque sensors, etc.) are widely used today. Various uses include, but are not limited to, automobiles and other vehicles, factory settings, personal items, and more. Inductive position sensors are commonly used to determine the position of objects such as brake pedals, gas pedals or others, hereinafter defined as "objects". Inductive torque sensors are commonly used today to measure torque applied to objects. Both i...

Claims

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Application Information

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IPC IPC(8): G01D5/14G01L3/00
CPCG01D5/14G01L3/00G01L25/003G01L3/105G01D5/208G01D5/206G01D5/2073
Inventor J·J·伯廷
Owner SEMICON COMPONENTS IND LLC