Multi-frequency electric spark timer

Abstract

The invention discloses a multi-frequency electric spark timer. The multi-frequency electric spark timer comprises a timer frame. The timer frame is covered with an upper cover and integrated in a buckling mode through a connecting piece and a fixing strip. A power source is installed in the timer frame. A bottom plate is arranged on the bottom of the timer frame. The power source is electrically connected with the connecting piece and a switch. A reel is installed on the timer and provided with a paper tape, the paper tape passes through a timing needle head of the timer, and the timing frequency is printed on the paper tape through the timing needle head. The multi-frequency electric spark timer has the advantages of being simple in structure, reasonable in design, low in manufacturing cost, capable of generating high-voltage pulses so as to adapt to paper tapes of different moving speeds and facilitate observation by students, capable of being used in environment from 0 DEG C to 40 DEG C, wider in application range and higher in accuracy and precision of output data.

Description

technical field [0001] The invention relates to a timer, in particular to a multi-frequency electric spark timer. Background technique [0002] Under the existing technology, what is used in the laboratory to do the electric spark experiment is the electromagnetic dotting timer, but the pulse generated by the electromagnetic dotting timer is not as high as that of the electric spark, and the traditional electromagnetic dotting timer cannot adapt to different The speed of the paper tape is not easy to observe and record, so the error generated is relatively large, and the accuracy and precision of the data are low, which cannot make the students understand more deeply and thoroughly. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a multi-frequency electric spark timer. [0004] In order to achieve the above object, the technical solution taken by the present invention to solve the technical problems is: [0005] The ...

AI Technical Summary

Problems solved by technology

[0002] Under the existing technology, what is used in the laboratory to do the electric spark experiment is the electromagnetic dotting timer, but the pulse generated by the electromagnetic dotting timer is not as high as that of the electric spark, and the traditional electromagnetic dotting timer cannot adapt to different The speed of the paper tape is not easy to observe and record, so the error generated is relatively large, and the accuracy and precision of the data are low, which cannot make students understand more deeply and thoroughly

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