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Chen Dequan – One of the best experts on this subject based on the ideXlab platform.

  • Automatic Recognition System for Numeric Characters on Time-sharing Ammeter Dial Plate
    Computer Engineering, 2005
    Co-Authors: Chen Dequan

    Abstract:

    Research on automatic recognition for numeric characters on time-sharing Ammeter dial plate, which is the key problem for Ammeter error analysis system is presented. The difficulties preventing the correct recognition come from: decline of fixing, half character recognition and decimal calculation. An automatic recognition system for numeric characters on time-sharing Ammeter dial plate is constructed. This system uses binary transform, projecting algorithm, open algorithm, close algorithm, edge detection and Hough transform as pretreatment and puts forward two algorithms on whole character recognition and half character recognition. The experiments show that this system is robust.

Pytel Jim – One of the best experts on this subject based on the ideXlab platform.

  • AC Ammeters: B&K Precision 2831E (Part 2 of 2)
    Columbia Gorge Community College, 2017
    Co-Authors: Pytel Jim

    Abstract:

    This lecture, published by Columbia Gorge Community College, demonstrates the use of the AC Ammeter function of the B&K Precision 2831E digital multimeter. In the presentation, the Ammeter function is used to "verify the anticipated current draw of a simple single phase AC circuit." The recording runs 3:29 minutes in length and part one is available to view separately

  • AC Ammeters: B&K Precision 2831E (Part 1 of 2)
    Columbia Gorge Community College, 2017
    Co-Authors: Pytel Jim

    Abstract:

    This lecture, published by Columbia Gorge Community College, demonstrates the use of the AC Ammeter function of the B&K Precision 2831E digital multimeter. In the presentation, the Ammeter function is used to "verify the anticipated current draw of a simple single phase AC circuit." The recording runs 3:43 minutes in length and part two is available to view separately

C.e. Smith – One of the best experts on this subject based on the ideXlab platform.

  • A DC current limited Ammeter protection circuit
    IEEE Transactions on Education, 1992
    Co-Authors: C.e. Smith

    Abstract:

    Ammeters are always connected in series in the branch where a current is measured. Unfortunately, parallel connection can destroy a meter if connected by mistake, as often happens in introductory electric circuits instructional laboratories. To protect an Ammeter from excessive currents caused by parallel connection, an op-amp/Zener diode circuit has been designed to effectively operate as a current-limited Ammeter. >