- #1
ahmadkza86
- 1
- 0
Can someone help me to design the multirange ohm meter using permenant magnetic moving coil movement...
ahmadkza86 said:Can someone help me to design the multirange ohm meter using permenant magnetic moving coil movement...
Integral said:One version is called a D'Arsonval movement.
The resistor in series (current mode) or parallel (voltage) determines the range. Figure the value of resistor to give you a range, then a switch to change ranges. Pretty basic stuff.
A Multirange Ohm Meter is a scientific instrument used to measure the electrical resistance of a material. It is designed to have multiple ranges of resistance values that it can measure, allowing for more precise and accurate readings.
A Multirange Ohm Meter works by sending a small electrical current through the material being measured and then measuring the resulting voltage drop. The resistance of the material is then calculated using Ohm's law (resistance = voltage/current).
The ranges of a Multirange Ohm Meter vary, but typically range from milliohms (mΩ) to megaohms (MΩ). This allows for a wide range of resistance values to be measured, from very low resistance materials like wires to very high resistance materials like insulators.
A Multirange Ohm Meter typically consists of a power source, a current source, a voltage measurement circuit, a resistance measurement circuit, and a display. It may also have additional features such as auto-ranging and a hold function.
To use a Multirange Ohm Meter, first ensure that the power source is connected and turned on. Then, select the appropriate range for the material being measured. Next, connect the leads of the meter to the material and read the resistance value on the display. It is important to follow proper safety precautions when using a Multirange Ohm Meter.