Voltmeter and voltmeter pen special for protecting pressure plate
The invention relates to a voltmeter and a voltmeter pen special for protecting a pressure plate and belongs to the technical field of electric power detection devices. According to the technical scheme, a data collecting module (12), an analog-digital conversion module (13), a single-chip microcomputer (14), a function self-detection module (15), a data display module (16) and a voice broadcasting module (17) are arranged in the voltmeter (1). A voltmeter display screen (2), a horn (3), a self-detection button (4), a power switch (5), a voltmeter pen negative electrode jack (6) and a voltmeter pen positive electrode jack (7) are arranged on the outer surface of the voltmeter. According to the voltmeter and the voltmeter pen special for protecting the pressure plate, the defects that when an existing universal meter is used for measuring the voltage across the two ends of the pressure plate, a wrong gear may be used, a grounding point is not easily fixed, reading is not easily observed and functions cannot be detected to be normal or abnormal are overcome, error tripping factors are reduced, the automatic detection function of the voltmeter is added, the voltmeter voice broadcasting function is added, and due to the fact that the structure of the voltmeter pen is improved, the number of measuring personnel can be reduced. 1. A voltage meter and the probe for the protection of the pressure plate, characterized in that comprising a voltmeter (1), a voltmeter display screen (2), the horn (3), self-checking button (4), a power switch (5), the detectors of the cathode jack (6), pen the positive plug hole (7), needlescopic pen (8), the detectors the alligator clamps the type (9), the data acquisition module (12), an analog-to-digital conversion module (13), a single chip (14), the function of self-checking module (15), a data display module (16) and a voice broadcast module (17), the data acquisition module (12), an analog-to-digital conversion module (13), a single chip (14), the function of self-checking module (15), a data display module (16), a voice broadcast module (17) is arranged on the voltmeter (1) internal, data acquisition module (12), an analog-to-digital conversion module (13), a single chip (14) are connected in sequence, a single chip (14) are respectively and function of the output of the self-checking module (15), a data display module (16), a voice broadcast module (17) is connected with each other, a voltmeter display screen (2), the horn (3), self-checking button (4), a power switch (5), the detectors of the cathode jack (6), pen the positive plug hole (7) is arranged on the voltmeter (1) the outer surface of, a voltmeter display screen (2) with the data display module (16) is connected with each other, the horn (3) and a voice broadcast module (17) is connected with each other, self-checking button (4) and the function of self-checking module (15) is connected with each other, needlescopic pen (8) through the pen the positive plug hole (7) and a voltmeter (1) is connected with each other, the detectors the alligator clamps the type (9) through the pen the cathode jack (6) and a voltmeter (1) is connected with each other; the pen the alligator clamps the type (9) comprises the middle the carp clamps (10) and the alligator clip (11), the alligator clip (11) provided with a sawtooth structure.