Metal fatigue identification device （in the process of patent application） | Maeda Corporation handles precision machine in Yamato City, Kanagawa Prefecture.

1.Summary

This device can capture quantitative subtle changes in electric conductivity and magnetic permeability in high sensitivity, and by a magnetic sensor system that differs from the traditional overflow style sensor system.

2.Characteristics

1. The sensor can measure parts of flat sizes with around 30mmφdiameter.
2. To measure the fatigue damage value, non-fatigue parts need to be compared; however, in some facilities or institutions, and depending on some devices, there are parts which have almost no stress effect. In this case, it is possible to estimate the fatigue damage value of metal fatigue damaged parts by measuring the comparison value of those parts.
3. This device advances metal fatigue, and can measure regularly the parts, which have an anxiety of breaking. It also estimates the progress value of metal fatigue by the change tendency of its numerical value.
4. This device is not used for measuring the length or depth of cracks. The purpose of this device is to inspect and manage metal fatigue before destruction occurs by evaluating the measured value tendency, and by monitoring the fatigue parts.
5. This device can also capture the change of numerical value in the metal fatigue before crack occurrence.

3.Others

1. With MFD102B it is recommended to monitor fatigue parts of facilities, and check their safety regularly by measuring the MFD value (electromagnetic substitution characteristics) regularly at various places in the facilities.
2. Using the metal fatigue identification device, we can provide every kind of measure and research analysis on metal fatigue.

This device is a product developed through the guidance and support of the Japan Small and Medium Enterprise Corporation, Kanagawa Industrial Technology Research Institute, and Yokohama National University.