20
■
4.7 Measurable samples
● Table 4-1 shows the sizes of measurable samples
Table 4-1 Measurable sample size and specifications of the provided B coils
Types of B coils
Measurable sample sizes
[mm]
Size of the bobbin
hole [mm]
Number
of Turns
Thickness
Width
Length
Thickness
direction
Width
direction
B Coil 01
1
≧
10
≧
36
≦
1.5
±0.1
12
±0.1
35
B Coil 02
1
≧
30
≧
36
≦
1.5
±0.1
32
±0.1
100
Coil wound by user
3
≧
35
≧
36
≦
-
-
-
● Table 4-2 shows the conditions of samples that make them unmeasurable, other than size.
Never measure
items with the following conditions
. Not only will it lead to incorrect measurement, but it may also cause a
failure or damage.
Table 4-2 Unmeasurable conditions of samples
Conditions of samples
Expected failures
Wet samples
Moisture will be attached to the yoke, causing it to rust.
Dirty samples
Dirt will be attached to the yoke, causing it to
deteriorate.
Samples with sharp
bumps
Pole faces of the yoke or the press block may get
damaged when the slider is descending.
Samples with hard
foreign objects attached
● Table 4-3 shows the conditions of samples that result in incorrect measurements.
Table 4-3 Conditions of samples that result in incorrect measurements
Conditions of samples
Expected failures
Samples with uneven
width
Magnetic flux density inside the sample will be
nonuniform.
Sample that deforms
Samples with uneven
thickness
Air-gaps are formed between the sample and the pole
faces of the yoke.
Samples with uneven
surface
Samples with foreign
objects attached
Содержание SY-956
Страница 1: ...Instruction Manual Mini Single Sheet Tester SY 956...
Страница 2: ...2014_2015 IWATSU TEST INSTRUMENTS CORPORATION All rights reserved...
Страница 37: ...27 Fig 4 19 1st Measurement Screen Fig 4 20 3rd Measurement Screen...
Страница 41: ...31 6 2 Outside appearance diagram Unit mm...
Страница 42: ...32 6 3 Outside appearance of the fixture Unit mm...
Страница 44: ...SY 956...