Manual
Table Of Contents
- toc
- General Safety Summary
- Compliance Information
- Preface
- Getting Started
- System Configuration
- Options
- Standard Accessories
- Optional Accessories
- Probe Covers
- Travel Case
- Connecting the Amplifier to an Oscilloscope
- Power on the Amplifier
- Connecting a Current Probe to the Amplifier
- Operating the Current Probe Slide
- Degaussing and Autobalancing the Current Probe
- DC Measurements
- AC Measurements
- Control Summary
- Reference Notes
- Specifications
- Glossary
Application Notes
Inductance Measurements
You can us e the TCPA300 and TCPA400 to measure inductance of coils. Two
different methods can be used: one for low-impeda nce pulse sources and another
for high-impedance pulse sources of known value.
Low-Impedance Pulse
Sources
This figure shows a constant-voltage pulse generator of extremely low output
impedance connected to an inductor that has low resistance. (See Figure 20.)
1. Connect the inductor across the output terminals of the pulse generator.
2. Maintain a constant voltage across the inductor.
3. Clamp the
current probe over one of the source leads.
Figure 20: Measuring inductance with a low-impedance source
NOT
E. Iftheprobeimpedanceisasignificant part of the total circuit inductance,
measurement accuracy will be affected. Refer to the probe specifications for
probe insertion impedance.
TCPA300/400 Amplifiers and TCP300/400 Series Current Probes User Manual 35