Inductance Measurements - Keysight E4980A User Manual

Measurement Procedure and Examples

Inductance Measurements

Inductance Measurements
This section describes a practical example of measuring a magnetic-core
inductor.
The basic procedure flow to perform this measurement is the same as the Basic
Measurement Procedure described previously. A magnetic-core inductor is
measured under the following conditions.
Sample
(DUT)
Measurement
Conditions
Step 1. Turn the E4980A/AL ON.
Step 2. Set up the E4980A/AL measurement conditions by filling in the fields on the
MEAS DISPLAY page.
1. Move to the FUNC field using the cursor keys and select Ls-Rdc.
2. Move to the FREQ field using the cursor keys and input 100 kHz.
3. Move to the LEVEL field using the cursor keys and input 10 mA.
Step 3. Connect the test fixture to the E4980A/AL as shown in
16047E Direct Couple Test Fixture (general purpose) is used for this
measurement.
Step 4. Perform the correction. To compensate for the Keysight 16047E's residuals
and strays, an OPEN/SHORT correction is required.
1. Leave the 16047E in an OPEN condition as shown in
2. Press the [Meas Setup] key and the CORRECTION softkey.
3. Move to the OPEN field using the cursor keys and press the MEAS OPEN
4. Press the ON softkey to enable an OPEN correction.
5. Connect a shorting bar to the Keysight 16047E to set up the SHORT
6. Move to the SHORT field using the cursor keys and press the MEAS SHORT
7. Press the ON softkey to enable a SHORT correction.
214
Magnetic-core inductor
• Function: Ls-Rdc
• Test frequency: 100 kHz
• Test Signal Level: 10 mA (constant)
softkey.
Wait until the message "OPEN measurement in progress" disappears.
condition as shown in
softkey.
Wait until the message "SHORT measurement in progress" disappears.
Figure 7-19.
Keysight E4980A/AL Precision LCR Meter
Figure 7-18. The
Figure 7-18.