Application of conductor in measurement ruler, electronic measurement ruler and measurement method

An electronic measurement and elastic body technology, which is applied in the direction of measuring devices, electric devices, and electromagnetic means, can solve the problems that infrared sensors are easily damaged, cannot measure small-sized objects, and cannot measure the length and size of curved objects and irregular objects. Achieve the effect of simple structure and good application prospect

Pending Publication Date: 2018-06-12
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The advantage of the infrared range finder is that the measurement range is wide and the error is small, but the disadvantage of the infrared range finder is that it cannot measure small-sized objects, such as the length of a few centimeters; moreover, the infrared range finder can only measure straight lines and cannot measure curved objects Or the length and size of irregular objects; in addition, the infrared sensor of the infrared rangefinder is also easily damaged during the handling process

Method used

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  • Application of conductor in measurement ruler, electronic measurement ruler and measurement method
  • Application of conductor in measurement ruler, electronic measurement ruler and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a new type of electronic measuring ruler in this embodiment includes a controller 1 , a connector 2 and an elastic wire 3 . Such as figure 2 As shown, the controller 1 includes an impedance measurement unit 4 , a control unit 5 , a display terminal 6 , an operation terminal 7 and a power supply unit 8 .

[0032] Both ends A and B of the elastic wire 3 are connected to the connector 2, which can form an electrical circuit in the case of power supply. One end of the impedance measurement unit 4 is connected to the connector 2 , and the other end is connected to the control unit 5 . The display terminal 6 is a liquid crystal display terminal, connected with the control unit 5, and displays the current measurement value. The operation terminal 7 is connected with the control unit 5 and mainly includes a power key and a calibration key. The power supply unit 8 supplies power to the impedance measurement unit 4 , the display terminal 6 and the ...

Embodiment 2

[0051] In this embodiment, the structure and preparation method of the electronic measuring ruler are completely the same as those in Embodiment 1, respectively. The difference is: in the specific use method of the electronic measuring ruler, the comparison table obtained in step (1) is stored in the control unit; after the current impedance value is obtained in step (2), the control unit performs the comparison according to the comparison table. The current impedance value is analyzed, and the length to be measured is obtained and displayed on the liquid crystal display terminal.

Embodiment 3

[0053] In this embodiment, the structure of the electronic measuring ruler is basically the same as that in Embodiment 1, the difference is that the liquid metal particles are dispersed in the elastomer, and the method for preparing the elastic wire is: stirring and mixing the liquid metal and the molten elastomer uniform, and then solidify the elastomer in it to obtain elastic wires.

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Abstract

The invention relates to application of an elastic conductor in the technical field of measurement rulers, the property that the impedance changes in the deformation process of the elastic conductor is used, and the to-be-measured length value is obtained through detecting the elastic impedance. Besides, the invention provides an electronic measurement ruler which comprises the elastic conductor,a connector and a controller; the controller is formed by an impedance measurement unit, a control unit, a power supply unit, a display terminal and an operation terminal; two ends of the elastic conductor are connected with the connector, and an electric loop is formed under the power supply situation; under the action of the control unit, the impedance measurement unit measures the impedance ofthe elastic conductor and displays the impedance on the display terminal. The electronic measurement ruler is simple in structure, because the elastic conductor can perform of deformation such as multiple times of stretching, reversing and folding, length measurement of irregular objects can be realized, the electronic measurement ruler has the advantages that the range is large, the accuracy is high, the ruler is portable, intelligent and not easy to damage, and the electronic measurement ruler has a good application prospect in the electronic measurement ruler aspect.

Description

technical field [0001] The invention relates to the technical field of elastic conductors and measuring rulers, in particular to the application of elastic conductors in measuring rulers, electronic measuring rulers and measuring methods. Background technique [0002] A ruler is one of the necessary length measuring tools in modern society, especially in the decoration industry and construction industry, practitioners often use steel tapes for length measurement. As far as the steel tape is concerned, it has great limitations. First, the measuring length is limited. If the length increases, you need to use a leather tape. The leather tape is bulky, inconvenient to carry, and the accuracy is not high; secondly, the steel tape is used improperly. It is easy to be damaged, and the side is easy to be cut during the drawing process; again, ordinary rulers need manual reading, which inevitably causes human errors. [0003] There are also infrared rangefinders on the market today....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/02
CPCG01B7/02
Inventor 胡超刘宜伟孙丹丹李润伟
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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