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Agilent AN 369-1
Optimizing Electronic Component
and Material Impedance
Measurements
Application Note
Taking Full Advantage of the Agilent 4284A Precision LCR Meter's Versatility
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Contents
3 Introduction
3 Agilent 4284A Precision LCR Meter
4 The Versatility of the 4284A
6 Evaluating the Level and Bias Dependency of High
Dielectric Constant Ceramic Capacitors
7 Automation of Multi-Frequency Evaluations of Film
Capacitors
9 Improving the Cored Coil Evaluation Method by Means of
Constant-Current Measurement
10 Evaluation of the Saturation Characteristics and Self
Resonant Frequencies of Magnetic Heads
11 Conclusion
2
Introduction includes buffer memory as standard, a handler
Impedance measurements are a basic means of interface, and a scanner interface. The ergonomic
evaluating materials and electronic components design of the front panel and the large easy-to-read
that support the technical innovations of electronic backlit Liquid Crystal Display make it possible to
instruments and equipment. Impedance character- take in measurement conditions and results at a
istics of the components used in circuits or of glance. All measurement conditions can easily be
materials vary with frequency, signal level, or the set up using the display cursor, the arrow keys,
signal combined DC-bias voltage. For an engineer and the softkeys. Furthermore, measurement
engaged in circuit design or component develop- setups can be recorded on a memory card to raise
ment, precise evaluation of impedance under the efficiency and to prevent mistakes. Thus, the effi-
actual operating conditions is the first step ciency of all stages of measurement, from measure-
towards obtaining high quality circuit design, and ment setup through data collection and analysis
for the development and manufacture of high-per- have been improved while costs have been lowered.
formance components.
Key Specifications
This application note describes the evaluation of
electronic components and materials that will give 4284A Precision LCR Meter
full play to the wide range of frequency, signal lev-
Test Frequency 20 Hz to 1 MHz
els, and DC bias settings. 8610 points
Agilent 4284A Precision LCR, Meter Number of Digits 6 digits
Sophisticated Measuring Functions that Meet the Measurement parameters |Z|,R,X: 0.01m to 99.9999M
Demands for High Quality |Y|,G,B: 0.01nS to 99.9999S
The 4284A precision LCR meter provides highly C: O.O1fF to 9.99999F
accurate and efficient impedance measurement L: 0.01nH to 99.9999kH
of electronic components and materials which D: 0.000001 to 9.99999
Q: 0.01 to 99999.9
enables it to give excellent cost/data performance.
With a wide 20 Hz to 1 MHz frequency range and Basic accuracy |Z|,C and L: 0.05%
a reliable basic accuracy of 0.05%, it answers the D:0.0005
measurement needs of testing high quality compo-
nents. Attach option 001 and you get a maximum Test Signal Level Range Voltage: 5mVrms to 2Vrms
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