Atec Agilent-4284A_4285A - Manual (Page 7)

7
Comprehensive incoming inspection
Satisfying difficulties and requirements
of impedance measurements during
incoming inspection
Many types of measurements requiring a variety of measurement
conditions have to be carried out during incoming inspection.
However, as measurement instruments cannot perform all of the
measurements required, substitute measurements are made. On
the other hand, purchasing all the necessary equipment would
substantially increase capital costs.
By employing the precision LCR meter family, a wide frequency
range is covered (20 Hz to 1 MHz for 4284A and 75 kHz to
30 MHz for 4285A) and various test signal levels can be set
(20 Vrms/200 mArms for 4284A Option 4284A-001 and
2 Vrms/20 mArms for 4285A). In addition, the ALC function
allows measurements of constant-voltage and constant-current
signals, and the added capability of Option 4284A/4285A-001
enables up to ±40 V of dc bias to be applied to the DUT. As a
result of these features, a variety of measurement conditions can
be carried out.
Furthermore, the precision LCR meter family achieves high accuracy
measurements (basic |Z| measurement accuracy: 0.05% for
4284A and 0.1% for 4285A), permitting the characteristics of
inductors and capacitors to be evaluated with excellent reliability.
Also, built-in compensation functions reduce the influence of test
fixtures to a minimum, further raising the reliability.
Built-in functionalities
for efficient measurements
In order to save time and facilitate the efficiency of measurement
routines, the precision LCR meter family has the following features.
The memory card
1 allows the measurement conditions to be pre-
set for various components with different measurement needs.
The comparator function can be set to sort into a maximum of 10
BINs, enabling many components to be handled during inspection.
The Option 4284A/4285A-301 scanner interface solves the prob-
lem of having discrepancies in measurement values for different
channels of the switching matrix by allowing channel compensa-
tion for up to 128 channels.
1. Need Option 4284A/4285A-004