Length or angle measuring device and circuit structure thereof

A technology of angle measuring device and circuit structure, which is applied in the direction of measuring device, using electric device, using electromagnetic means, etc., can solve the problems of high power consumption of measuring device, susceptibility to electrical interference, and low measurement accuracy, so as to prolong mechanical life, The effect of reducing the inertial force and reducing the moment of inertia

Inactive Publication Date: 2012-01-25
唐臻宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantages of the above-mentioned prior art are: the entire measuring device consumes a lot of power, and is powered by an AC power supply, which is bulky and difficult to install. The length measuring device based on a circular capacitance grid sensor also has low measurement accuracy and is susceptible to electrical interference.

Method used

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  • Length or angle measuring device and circuit structure thereof
  • Length or angle measuring device and circuit structure thereof
  • Length or angle measuring device and circuit structure thereof

Examples

Experimental program
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Embodiment approach

[0036] Multiple voltage step-up or step-down chips are used in the power supply circuit to convert the voltage value output by the 3.6V lithium-ion battery into the voltage required for the work of various circuit parts such as 5V and 3.3V.

[0037] The displacement sensor is a circular grating sensor with two orthogonal sinusoidal signal output terminals and one zero signal output terminal. The zero signal output terminal is used to determine the initial position of the displacement to be measured, and is connected to the special zero of the reversible counter. Bit input port, the zero signal can clear the reversible counter.

[0038] The photosensitive element signal processing circuit includes two structurally symmetrical first amplifying circuits and a second amplifying circuit and two structurally symmetrical first comparators and a second comparator; the signal output terminal of the first amplifying circuit is compared with the first The signal input end of the device i...

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PUM

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Abstract

The invention discloses a length or angle measuring device and a circuit structure thereof, relates to a displacement measuring device, and aims to provide an integrated, portable and low-power-consumption length or angle measuring device and a circuit structure thereof. The technical key points are that: the device comprises a gear, a shell, a light source, a round indicator grating, a round scale grating, a photosensitive element and a printed circuit board; the light source, the round indicator grating, the round scale grating, the photosensitive element and the printed circuit board are positioned in the shell; one end of the gear is fixedly connected with a central part of the round scale grating, and the other end of the gear extends out of the shell; the light source is positioned on one side of the round scale grating and is positioned on the same side of the round scale grating as the gear; the round indicator grating is opposite to the light source and is separated from the light source by the round scale grating; the photosensitive element is positioned on the printed circuit board and is opposite to the round indicator grating; and the printed circuit board is oppositeto the round scale grating. The device can be used for measuring straight length or angle.

Description

technical field [0001] The invention relates to a displacement measuring device, in particular to an integrated and portable length or angle measuring device and its circuit structure. Background technique [0002] Most of the electronic length measuring devices in the prior art are rack and pinion type. The principle is to set a rack on the object to be measured, and the length measuring device has a pinion meshing with the rack. The pinion rolls on the rack, and the displacement measuring device calculates the length of the object to be measured by counting the number of cycles the pinion rolls. See domestic patent " altimeter ", application number is: 85109249. [0003] In addition to the length measuring device disclosed in the above patent documents, there is also a rack and pinion length measuring device based on a circular capacitive angular displacement sensor. The principle is: when the pinion rolls on the rack, it drives the angular displacement sensor of the cir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/02G01B7/30
Inventor 唐臻宇
Owner 唐臻宇
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