Iwatsu SY-956, Instruction Manual

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2
Chapter 1 Introduction
This instruction manual explains only about those functions of the B-H Analyzer that are added by operation
and use of a Mini Single Sheet Tester SY-956. Descriptions of the functions that overlap with the standard
functions equipped with the B-H Analyzer are omitted. Please refer to the B-
H Analyzer’s instruction manual.
■
1.1 Summary
● In combination with the B-H Analyzer, this instrument allows users to measure core loss of a single sheet
sample.
* Not compatible with B-H Analyzers SY-8232, SY-8217, and SY-8258.
■
1.2 Features
● The following are the features of this instrument.
(1) This instrument employs vertical single-yoke type, magnetizing current (MC) method-based single sheet
testing (similar to IEC 60404-3).
(2) FINEMET
®
with a small core loss and magnetostriction is used for the measuring yoke.
(3) Highly accurate measurement of single sheet core loss has been achieved by providing the
Yoke
Compensation.
*1
function, which cancels
the measurement yoke’s magnetic properties, such as core
loss.
*1 : A joint patent application with Professor Toshihisa Shimizu of Tokyo Metropolitan University has
been submitted for this function. This function may not work under the measuring conditions in which
a core loss of a yoke is small.
(4) Measurement frequency is a
sine wave between 10 [Hz] to 20 [kHz], which is one of the widest
frequency ranges in the world for a Single Sheet Tester (SST).
(5) Capable of measuring a single sheet sample that is far smaller than what was possible before. Measurable
size is width 35 mm or less, length 36 mm or more, and thickness 3 mm or less (1 mm or less when a
provided B coil is in use).
(6) A semi-automatic slider, which presses the sample at a constant pressure, is provided, in order to improve
measurement reproducibility .