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    • 3. 发明授权
    • Oil deterioration sensor
    • 油劣化传感器
    • US6151956A
    • 2000-11-28
    • US148508
    • 1998-09-04
    • Toshimitsu TakahashiTakuya Kondo
    • Toshimitsu TakahashiTakuya Kondo
    • G01N29/00G01N29/024G01N29/32G01N33/26G01N33/30G01N3/56G01N9/24G01N29/18
    • G01N33/26G01N29/024G01N29/326G01N2291/011G01N2291/0222G01N2291/0226G01N2291/0258G01N2291/02818G01N2291/02881
    • The present invention relates to a sensor for detecting the degree of deterioration of oil, and more particularly, provides an oil deterioration sensor which can detect the deterioration of oil and/or the liquid surface of oil by utilizing the fact that the sound velocity of ultrasonic waves change according to the alkalinity of the oil, the oil deterioration sensor for determining deterioration characteristics of oil by utilizing ultrasonic waves, which is characterized in that a deterioration sensor reflecting surface for reflecting ultrasonic waves transmitted from an ultrasonic wave transmitting portion is placed in oil so as to detect deterioration of the oil, and characterized by comprising: an oil deterioration detecting portion for evaluating a transmission velocity of an ultrasonic wave in the oil by receiving ultrasonic waves from the aforesaid deterioration sensor reflecting surface and for evaluating a degree of deterioration of oil from said transmission velocity of the oil.
    • 本发明涉及一种用于检测油的劣化程度的传感器,更具体地说,提供一种油劣化传感器,其可以通过利用超声波的声速来检测油和/或油表面的劣化 波根据油的碱度变化,通过利用超声波确定油的劣化特性的油劣化传感器,其特征在于,将用于反射从超声波传递部发射的超声波的劣化传感器反射面放置在油中 以检测油的劣化,其特征在于包括:油劣化检测部分,用于通过接收来自所述劣化传感器反射表面的超声波来评估油中的超声波的传播速度,并评估油的劣化程度 油从oi的传播速度 l。