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Strain Measurement Product List

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Strain measurement in thermal shock testing

Observing the behavior of strain in thermal shock testing! The test materials used are FR-1 and FR-4.

We would like to introduce the "Strain Measurement of Thermal Shock Testing" conducted by our company. A sample with a strain gauge attached was set up in the thermal shock testing device, and the wiring of the strain gauge was connected to an external data logger to record the strain data in real-time during the test. The strain behavior during the thermal shock test was observed for two types of copper-clad laminates, and it was noted that significant strain occurred with changes in temperature. It was found that FR-1 exhibited greater strain compared to FR-4. [Test Conditions] ■ Temperature Cycle: -30°C to 120°C ■ Exposure Time at Each Temperature: 30 min ■ Test Materials - FR-1 Paper Phenolic (Double-sided board) - FR-4 Glass Epoxy (Double-sided board) ■ Strain Gauge: Foil strain gauge for printed circuit boards *For more details, please refer to the PDF document or feel free to contact us.

  • Substrate in the test chamber.PNG
  • Contract Analysis

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Measurement of moisture absorption distortion

We investigated the behavior of strain during moisture absorption and drying using a strain gauge!

We would like to introduce the results of our investigation into the behavior of strain during moisture absorption and drying using strain gauges. It was observed that the material expands when absorbing moisture and contracts back to its original state when drying, with the strain returning to the condition prior to moisture absorption. Regarding FR-1, it is presumed that it did not return to its original state due to changes in the chemical structure of the material caused by hydrolysis. 【Test Overview】 ■ 85℃ 50% ⇒ 85℃ 85% ⇒ 85℃ 50% ■ Test Materials ・FR-1 Paper Phenolic (single-sided board) ・FR-4 Glass Epoxy (single-sided board) ■ Strain Gauge ■ Foil Strain Gauge for Composite Materials *For more details, please download the PDF or feel free to contact us.

  • Contract measurement

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Strain measurement of power module package resin.

Measuring the strain behavior of the sealing resin under thermal cycling using a strain gauge!

We would like to present the results of strain measurements conducted by attaching strain gauges and thermometers to the surfaces of power modules, both in a mounted state on a circuit board and in an unmounted state. In the mounted module, it was observed that the temperature change was slightly slower, and correspondingly, the change in strain was also slow. This is believed to be due to the delayed transfer of heat to the module when it is mounted. 【Test Overview】 ■ Strain Gauge Used - Foil strain gauge for composite materials: compatible linear expansion coefficient 1x10^-6, base 15x5mm ■ Test Conditions - Hold at -40℃ for 3 hours → 15℃/min → Hold at 80℃ for 3 hours * 5 cycles * For more details, please download the PDF or feel free to contact us.

  • Other measurement, recording and measuring instruments

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Measurement of compressive permanent strain of resin and plastic materials

One of the important indicators of durability! The compression permanent strain that serves as an indicator of sagging.

We would like to introduce the "Compression Permanent Deformation Measurement" offered by Ronbic Co., Ltd. It is possible to place samples (rubber, elastomers) in an oven or constant temperature and humidity chamber while they are attached, allowing for compression permanent deformation measurements under temperature conditions suited to the usage environment. In addition to measuring compression permanent deformation, we can also observe morphological differences through morphological observation using TEM or SEM. 【Measurement Conditions】 ■ Applicable Standards: JIS K 6262 ■ Compression Ratios: 10%, 15%, 25% *Determined by IRHD ■ Test Specimens ・Large Test Specimen: Diameter 29.0±0.5mm, Thickness 12.5±0.5mm ・Small Test Specimen: Diameter 13.0±0.5mm, Thickness 6.3±0.5mm *For more details, please download the PDF or feel free to contact us.

  • Contract measurement

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Elastomer material compression permanent strain measurement

One of the important indicators of the durability of elastomer materials! The compression permanent strain, which serves as an indicator of deformation.

We would like to introduce the "Compression Permanent Deformation Measurement" offered by Ronbic Co., Ltd. It is possible to place samples (rubber, elastomers) in an oven or constant temperature and humidity chamber while they are attached, allowing for compression permanent deformation measurements under temperature conditions suited to the usage environment. In addition to measuring compression permanent deformation, we can also observe morphological differences through morphological observation using TEM and SEM. 【Measurement Conditions】 ■ Applicable Standards: JIS K 6262 ■ Compression Rates: 10%, 15%, 25% *Determined by IRHD ■ Test Specimens ・Large Test Specimen: Diameter 29.0±0.5mm, Thickness 12.5±0.5mm ・Small Test Specimen: Diameter 13.0±0.5mm, Thickness 6.3±0.5mm *For more details, please download the PDF or feel free to contact us.

  • Contract measurement

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