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Sensor, sensor assembling method and sensing system

A sensing system and sensor technology, applied in the field of sensors, can solve problems such as adverse effects of electronic devices and power supply, and achieve the effect of improving sensitivity

Inactive Publication Date: 2017-08-29
MEDIATEK INC
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  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a sensor, a method of assembling a sensor, and a sensing system to solve the problem that conventional position sensors are adversely affected by their electronic devices and power sources

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  • Sensor, sensor assembling method and sensing system
  • Sensor, sensor assembling method and sensing system
  • Sensor, sensor assembling method and sensing system

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Embodiment Construction

[0020] Traditional position sensors are adversely affected by their electronics and power supply. For example, AC charging of the internal battery may induce eddy currents in the sensor coil of the position sensor, reducing the sensitivity of the sensor due to increased noise in the sensor coil. An additional challenge with position sensors is making them small enough to be suitable for a variety of applications, such as virtual reality or medical monitoring. Magnetic induction position sensors usually use coils and separate electronic devices to process the signals in the coils, and the coils usually occupy a large volume to increase their sensitivity. Previous solutions were imprecise or bulky, making them unsuitable for many applications. Minimizing the volume occupied by the position sensor can make the position sensor easier to integrate into an application or to be used by a user. For example, in applications such as wearable devices, medical devices, virtual reality s...

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Abstract

The invention provides a sensor, a sensor assembling method and a sensing system. The sensor includes a ferromagnetic shield, at least one sensor coil disposed around an exterior of the ferromagnetic shield, and an electronics module within the ferromagnetic shield. The electronics module is configured to determine the position and / or orientation of the sensor based at least in part on a measurement of a signal induced in the at least one sensor coil. According to the s sensor, the sensor assembling method and the sensing system, providing a ferromagnetic shield around the electronics module may shield the at least one coil from magnetic fields produced by the electronics, which can improve sensitivity.

Description

technical field [0001] The present invention relates to sensors, and more particularly to inductive position sensors. Background technique [0002] Location tracking systems are becoming increasingly popular in many applications such as virtual reality, wearables, medical devices, and IoT-connected devices. Current applications typically use a global positioning system (GPS) or light-based sensors to determine a device's location. These applications can use the information provided by a position-tracking system, for example to move a user through an immersive virtual environment, inform a monitoring system of a patient's movements, or provide feedback on a series of motion exercises. Contents of the invention [0003] In view of this, the present invention provides a sensor, a method of assembling the sensor and a sensing system to solve the problem that the traditional position sensor is adversely affected by its electronic devices and power supply. [0004] According t...

Claims

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Application Information

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IPC IPC(8): G01B7/02
CPCG01B7/02G01D5/2086G01B7/003G01D5/2013
Inventor 弗拉迪米尔·亚历山大·穆拉托夫许大山
Owner MEDIATEK INC
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