Imagine the meter itself in a hypothetical inexpensive moving-coil multimeter, that has a full scale deflection of about half a milliamp. To take a reading at full scale the meter must then draw 0 ...

Certainly most analog multimeters will use this type of movement. They can be made very sensitive — 50 µA or less for full scale deflection (FSD) of the needle. This is a fairly crucial point: No ...

Rescaling Ifyou adapt a meter and the scale on the faceplate is not what you need,you have a few choices. The Dymo-type tape labellers produce a veryacceptable text quality and you can relabel the ...

Whereas a typical scale would then simply show the resulting number on an LCD display, [Mirko] decided to use a moving coil meter driven by the Arduino’s analog output. That meter was originally ...

Inside, analog and digital multimeters use ammeters to measure a circuit ’ s electric current in amperes. Analog units (Fig. 1) , for instance, commonly rely on an electro-dynamometer to measure ...