Potential difference meter experimental apparatus
A potentiometer and experimental data technology, applied in the direction of educational equipment, instruments, teaching models, etc., can solve the problems that the teacher's experimental mastery cannot have a good understanding, errors are easy to occur, and deviations occur
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[0012] figure 1 The schematic circuit diagram of the potentiometer experiment in the present invention is shown, and this part is consistent with the potentiometer in the prior art. In the present invention, an electronic digital caliper 2 is additionally installed between the sliding contact N and the scale 1.
[0013] The present invention is characterized in that it also includes data collection, transmission and reception modules. Students move the sliding contact N, when the current in the galvanometer G is 0, press the "record" button on the circuit board embedded with the single-chip microcomputer, the single-chip microcomputer automatically reads the reading of the electronic digital caliper, obtains the length of the resistance wire, and The data is transmitted to a display connected to it, and a "send" button and a bluetooth transmitter module are also arranged on the circuit board embedded with a single-chip microcomputer, by pressing the "send" button, the bluetoot...
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