CN86202377U

CN86202377U - Digital electronic calibrator for mechanical watch

Info

Publication number: CN86202377U
Application number: CN 86202377
Authority: CN
Inventors: 林松明
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-04-14
Filing date: 1986-04-14
Publication date: 1987-08-12

Abstract

The utility model relates to a digital electronic calibrator for mechanical watch, belonging to a device used for calibrating the accuracy of the running of a mechanical watch. The number value of the daily error of a tested watch can be digital displayed. Compared with the existing calibrators, the digital electronic calibrator for mechanical watch has the advantages of direct-viewing, convenient use and good accuracy. Due to adopting the full electronic circuit structure, the utility model has simple preparing process and convenient production.

Description

Digital electronic calibrator for mechanical watch

The utility model belongs to a kind of digital electronic chronographic recorder of the instrument, particularly a kind of mechanical watch of degree of accuracy when being used for proofreading and correct wrist-watch and walking.

The existing mechanical watch electronics chronographic recorder that generally uses is promptly made the table machine, be by behind the watch sound signal that picks up tested wrist-watch, get the sound track lines on the paper playing table, skew direction and the deflection program with the sound track lines is foundation again, the speed error when proofreading and correct wrist-watch and walking.Because the sound track lines are directly perceived and accurately reflect speed error numerical value, thereby have influence on the efficient and the accuracy of correction.Published article " adjustment of mechanical watch speed " on " radio " magazine nineteen eighty-three o. 11th that domestic People's Telecon Publishing House edits and publishes, introduced another kind of electronics chronographic recorder scheme, comprise microphone, amplifying circuit and signal transformation circuit, be connected on the frequency meter then, demonstrate watch sound cycle of tested wrist-watch by frequency meter, the speed error when the reference standard periodic quantity is proofreaied and correct wrist-watch and walked again.Owing to will come work by frequency meter, so use inconveniently, add that the watch sound cycle only reflects instantaneous numerical value, obtain day difference and also will convert, the accuracy of same effect correction by formula.

The purpose of this utility model provides a kind of easy to use, directly perceived, measured value that numeral shows day error amount mechanical watch calibration instrument accurately that adopts.

The utility model is achieved in that whole chronographic recorder is divided into the watch sound picking up signal, and signal amplifies, and signal shaping and inspection lack, counting and sequential decoding, and standard signal source, the signal rating unit, the diurnal inequality numeral shows, parts such as fast, accurate, slow ternary demonstration.Tested mechanical watch makes its vibration beat be converted to electric impulse signal by watch sound picking up signal part; Through the signal amplifying part branch feeble signal is amplified; Shaping circuit through signal shaping and the scarce part of inspection is the signal shaping after amplifying the stretched pulse of strong interference immunity, it is for when pulse is short of or removes wrist-watch that inspection short of electricity road is set, make counter return-to-zero ， And reset pulse shortcoming numerical value, avoid occurring wrong numerical value; Again through counting and sequential decoding part, with pulse count signal and be translated into clock signal and distribute export; Simultaneously by standard signal source outputting standard signal; These two kinds of signals are the input signal rating unit simultaneously, relatively the back output error signal; Error signal demonstrates day error numerical value through the diurnal inequality digital display portion; Demonstrate the state that is positioned through fast, accurate, slow ternary display part.

The utility model is compared with existing mechanical watch chronographic recorder, owing to do not finish the precision part of mechanical action, but adopt all electronic circuit structure, and so manufacturing process is simple, be easy to produce; And measured value is accurate rapidly, and calibration cycle is short.

Below in conjunction with accompanying drawing the utility model is described specifically.

Fig. 1 is the functional-block diagram of a kind of scheme of the utility model.

Fig. 2 is the circuit diagram of a kind of scheme of the utility model.

With reference to Fig. 1, it is to aim at skilled tester to be provided with that watch sound is monitored part, can tell the failure condition of wrist-watch roughly according to monitoring the sound that partly sends.

With reference to Fig. 2, frame of broken lines is divided into several sections to circuit diagram, and wherein 1 is the clamped-in style microphone; The 2nd, the signal amplifying part branch comprises preposition amplification and power amplification circuit; The 3rd, signal shaping and inspection lack part, wherein examine short of electricity route R7, C12, D3 and M14 and constitute; The 4th, counting and sequential decoding part, wherein K is a table selector switch frequently; The 5th, the standard signal source part; The 6th, the diurnal inequality digital display portion; The 7th, fast, accurate, slow ternary diode displaying part; The 8th, watch sound is monitored part, and wherein AN is the listening key; The 9th, the signal rating unit.

During test, tested wrist-watch is clamped on the clamped-in style microphone, choose the corresponding gear of K according to the corresponding frequencies of tested wrist-watch, obtain the branch of day error and the numerical value of second from the diurnal inequality digital display portion, be in control error state of living in, stir the speed of tested wrist-watch and adjust pin from light-emitting diodes, just finish one and proofreaied and correct circulation, when need monitoring, closed AN, just can from obtain monitoring watch sound.

Claims

1, mechanical watch digital electronic chronographic recorder, comprise watch sound picking up signal part, the signal amplifying part branch, it is characterized in that also comprising that signal shaping and inspection lack part, counting and sequential decoding part, standard signal source part, signal rating unit, hurry up, accurate, slow ternary display part, the diurnal inequality digital display portion.

2,, it is characterized in that having " watch sound " (signal) and monitor part by the described mechanical watch digital electronic of claim 1 chronographic recorder.

3,, it is characterized in that having table selector switch frequently by claim 1 or 2 described mechanical watch digital electronic chronographic recorders.

4,, it is characterized in that its fast, accurate, slow ternary display part employing diode displaying by the described mechanical watch digital electronic of claim 1 chronographic recorder.