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Digital ticker-timer

A kind of timing timer and characteristic technology, applied to instruments, metronomes, teaching models, etc., can solve the problems of large errors between paper tapes and objects, and achieve the effect of adjustable speed and accurate distance measurement

Inactive Publication Date: 2017-09-08
ZHEJIANG SCIENCSYS INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of existing dotting timers is that a moving object is required to drive the paper tape, and the relative sliding of the paper tape and the object produces a large error

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] A digital timing timer, such as figure 1 As shown, it includes a bottom plate 1 and a trolley 4, the bottom plate 1 is provided with two parallel sliding grooves, the bottom of the trolley 4 is provided with four wheels 41, front, rear, left, and right. The wheels 41 are adapted to the sliding grooves so that The trolley 4 can slide on the bottom plate 1 under the guidance of the chute.

[0029] The dotting timer also includes an L-shaped bracket 2. The upwardly extending section of the L-shaped bracket is provided with a strip hole 21, and a fastening device is arranged in the strip hole 21, and the fastening device is connected to the L-shaped bracket And one end of the bottom plate. The fastening device is a bolt, and one end of the bottom plate 1 is provided with a threaded hole adapted to the bolt 22, so that after the user selects the height of the bottom plate 1 according to needs (by selecting the upper and lower positions in the strip hole 21), Use bolts 22 to pa...

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PUM

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Abstract

The invention discloses a digital ticker-timer. The digital ticker-timer comprises a base plate, a trolley and an L-shaped support, wherein a magnetic collision plate is arranged on the front side of the trolley, and the front end of the base plate is correspondingly provided with a locking block; a retaining plate is arranged on the rear side of the trolley, a launching pad is correspondingly arranged on the rear side of the base plate, and a ranging sensor is arranged on the launching pad; a fastening device is arranged on the upward-extension section of the L-shaped support and connected with the L-shaped support and one end of the base plate. The digital ticker-timer is adjustable in speed and accurate in ranging.

Description

Technical field [0001] The invention belongs to the field of teaching experiment instruments, and particularly relates to a digital counting timer. Background technique [0002] Dotting timer means that the paper tape driven by the moving object passes through the dot timer. The dots placed on the paper tape record the movement time of the object. The dots on the paper tape also show the position of the moving object at different times. Study the interval between the points on the paper tape to analyze the movement of the object. [0003] The disadvantage of the existing dotting timer is that a moving object is required to drive the paper tape, and the relative sliding of the paper tape and the object causes a large error. Summary of the invention [0004] The invention provides a dotting timer with adjustable speed and accurate ranging. [0005] In order to achieve the above objective, the specific scheme of the present invention is as follows: [0006] A digital dotting timer inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04F5/02G09B23/06
CPCG04F5/02G09B23/06
Inventor 丁涛涛徐金张勇杨佳豪邹伟
Owner ZHEJIANG SCIENCSYS INFORMATION TECH