To provide a method and an apparatus which can evaluate a property of a non-conductive liquid such as a machine-use oil, a fatty acid, a crystalline liquid or the like, under a condition wherein states of an applied pressure, a surrounding temperature and the like are similar to their actual working states.
In the method for evaluating the non-conductive liquid sandwiched between solids, the liquid 4 is sandwiched thinly between a metal sphere 2 and a semiconductor plate 1, and a pressure is applied to the liquid formed into a thin film by using a weighting member 6, and the semiconductor plate 1 is irradiated with light by using a semiconductor laser 9 and an objective lens 10 in order to generate photoexcited electrons, and a current value which is caused by the photoexcited electrons moving from the semiconductor plate to the metal solid across the liquid being in the form of the thin film, is measured by a minute-current meter 3. Furthermore, the apparatus is installed in a constant-temperature chamber 12, whereby the property such as stability or the like of the liquid being in the form of the thin film can be evaluated under the condition of the state similar to the actual working states.
MASUI TAKAMI
FUJIMAKI TADASHI
MIE PREFECTURE
JPN6010058076, 中間啓史 他, "光誘起電流によるベアリング／Ｓｉ間の潤滑油膜測定", 日本機械学会東海支部第５０期総会講演会講演論文集, 2001, Ｎｏ．０１３−１, ｐｐ．２２９−２３０
JPN6010058077, 増井孝実, "固体間界面で一軸圧縮を受けた液体の光誘起電流による評価", 日本機械学会東海支部地区講演会講演論文集, 2003, ｐｐ．１２２−１２３