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Angle sensing device

A technology of angle sensing and inclination angle, which can be used in measurement devices, electrical devices, and gauges for measuring angle/taper, etc., and can solve problems such as being unusable

Inactive Publication Date: 2020-05-05
ISENTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in applications where sensors are not allowed to be installed in the shaft, the above-mentioned magnetic sensing angle sensing technology cannot be used

Method used

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Experimental program
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Embodiment Construction

[0034] figure 1 It is a schematic cross-sectional view of an angle sensing device according to an embodiment of the invention. Please refer to figure 1 The angle sensing device 100 of this embodiment includes a first object 110, a second object 120, a magnetic field source 130, and a first magnetic sensor 140. The second object 120 is adapted to rotate relative to the first object 110 so that the tilt angle θ of the second object 120 relative to the first object 110 changes. In this embodiment, the first object 110 and the second object 120 are two substrates, which are, for example, a base and a top cover (such as a screen) of a notebook computer, or two relatively rotatable components of other devices.

[0035] The magnetic field source 130 is connected to the second object 120. The first magnetic sensor 140 is connected to the first object 110 and used for sensing the magnetic field generated by the magnetic field source 130. In this embodiment, the magnetic field source 130...

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Abstract

The invention provides an angle sensing device, including a first object, a second object, a magnetic field source, and a first magnetic sensor. The second object is adapted to be rotated with respectto the first object, so that an inclined angle of the second object with respect to the first object is changed. The magnetic field source is connected to the second object. The first magnetic sensoris connected to the first object, and configured to sense a magnetic field generated by the magnetic field source. When the second object is rotated with respect to the first object, the magnetic field sensed by the first magnetic sensor changes, so that an output signal of the first magnetic sensor corresponding to the magnetic field changes.

Description

Technical field [0001] The invention relates to a sensing device, in particular to an angle sensing device. Background technique [0002] Angle sensing technology has been widely used in consumer electronics, industrial automation, automotive and aerospace fields. Angle sensing can be divided into contact and non-contact angle sensing. The main advantage of non-contact angle sensing is that it will not produce wear, so it can still provide reliable performance under long-term use. [0003] Magnetic sensing type non-contact angle sensing is one of the main angle sensing technologies, and is widely used in various fields. It has significant effects on anti-environmental interference (such as anti-dust, anti-oil, anti-mechanical vibration, etc.). [0004] In the traditional magnetic sensing angle sensing technology, a magnetic sensor and a magnet or a magnetic encoder (magnetic encoder) are arranged in a rotating shaft. This method of monitoring the rotation angle is widely used in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30
CPCG01B7/30G01B3/56
Inventor 谢伟安袁辅德李彦琦
Owner ISENTEK INC