Hioki MR8740-50, Инструкция по эксплуатации

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Converting Input Values (Scaling Function)
When using Model U8969 Strain Unit
When an inspection record of a strain gauge converter provides a calibration
factor
Example: To display data measured with the strain gauge converter having a calibration
factor of 0.001442 G/1 × 10
−6
strain* as values in terms of gravities (G)
(*: 10
−6
strain =
me
)
Scaling On (ENG)
Method Ratio
Units
G
Ratio 0.001442 [G] (Displayed as “1.4420 m”)
When an inspection record of a strain gauge converter provides the rated
capacity and rated output
Refer to “When using the [Rating] setting” in “3.2 Converting Input Values (Scaling
Function)”(p. 41).
When using a strain gauge that has a gauge factor of other than 2.0
Model U8969 Strain Unit measures outputs of the gauge supposing that the gauge factor stands at
2.0.
When a strain gauge that has a gauge factor of other than 2.0 is used, you need to convert its
gauge factor into a conversion ratio.
For example, if the gauge factor stands at 2.1, the conversion ratio will be 0.952 (≈ 2 / 2.1).
Example: To display data measured with a strain gauge (gauge factor: 2.1) as values in terms
of gravities (G)
Two scaling (conversion ratio) calculations are required: a gauge ratio and conversion ratio that
converts output into physical quantities. In this case, enter the product of the conversion ratios of
the gauge factor and the scaling conversion ratio as the conversion ratio.
Where the conversion ratio of the gauge factor is 0.952, and the conversion ratio to convert data
into physical quantities is 0.001442*.
Conversion ratio = 0.952 × 0.001442 = 0.0013728
Enter [0.0013728] as the conversion ratio.
*: To convert values measured with a strain gauge into physical quantities, calculate the conversion ratio
based on Young’s modulus or Poisson’s ratio of a measuring object. The conversion method varies
depending on the conditions the strain gauge is used in.
Refer to “Scaling method for strain gauges” (p. 223).