Measuring Resistance
Resistance is generally measured using a multimeter. ExpEYES provides a limited facility
to do this, using the SEN terminal. SEN is actually a voltage measurement terminal, with
a resistor connected to
internally. The internal
and the external resistor connected to SEN forms a series combination. By knowing the voltage across both
and the value of one resistance, we can calculate the other using Ohm’s law. The drawback of this method
is that the accuracy is poor when the external resistance differs widely from
.
A resonable range is from
to
.
Objective
Measure resistance using the SEN terminal.
Procedure
- Connect the resistor between SEN and any Ground terminal.
- Observe the value shown on the top right side of the GUI.
- Repeat with different resistors