how can a galvanometer be modified to make an analog multimeter?

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how can a galvanometer be modified to make an analog multimeter?

metrology

2007-11-14 08:05:59 · 2 answers · asked by GUNA S 1 in Science & Mathematics ➔ Engineering

2 answers

Most movements are designed to move to full scale when they receive 0.3V.

Add resistors in series to use as a volt meter.

Add small resistance in parallel to use as amp meter.

Add a battery and a zeroing potentiometer in series to use as resistance meter.

2007-11-14 08:48:23 · answer #1 · answered by Tim C 7 · 0⤊ 0⤋

An unbalanced bridge circuit would be a lot better for the ohms circuit. While the other ideas that Tim suggested will work, if you are wrong, you could destroy the coil in the meter. A simple alternative would be to just buy a small analog meter. They are easy to find, and fairly inexpensive. Radio Shack, or Lowe's are good places to find such meters.

2007-11-14 09:08:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋