Hewlett Packard/Agilent 4275A High F LCR Analyzer

Overview

Problems concerning DC current biased inductance measurements
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DC current biased inductance measurements involve the following problems.
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• Measurement preparations and procedures are time-consuming
• An external bias circuit is required
• Setting and confirming current values are troublesome
• Automation of measurement procedures is difficult
• Safety problems
• Frequency range is insufficient
• Not enough bias current can be generated
• Measurement accuracy is not guaranteed

Solutions offered by the Agilent 4275A, E4980A, 4284A and 42841A

The E4980A or 4284A precision LCR meter (with Option E4980A-002/4284A-002 current bias interface)
>in combination with the 42841A bias current source ensures simple and safe DC current biased inductance measurements. The E4980A and 4284A allow for DC current biased inductance measurements with the following advantages.<br>

• Wide 20 Hz to 2 MHz (E4980A), 1 MHz (4284A) frequency range measurements
• DC current biased inductance measurements up to 40 A using two the 42841As,
• Basic accuracy of 1%
• List sweep function for bias sweep measurements of up to 10 points
• The bias current is easily set using the 4284A's front panel keys or by using an external controller via GPIB.
• The 42842A/B bias current test fixtures which protect the operator and instrument are provided.
• Built-in memory function and removable memory (USB memory for E4980A, memory card for 4284A) for storing instrument setups