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2. 发明申请

WO1997000729A1 SYSTEM AND METHOD FOR DETECTION AND CONTROL OF UNGROUNDED PARTS IN A PRODUCTION COATING LINE 审中-公开
标题翻译：用于检测和控制生产涂料生产线中的各种部件的系统和方法
公开(公告)号：WO1997000729A1
公开(公告)日：1997-01-09
申请号：PCT/US1996010700
申请日：1996-06-21
申请人： FIRE SENTRY SYSTEMS INC.
发明人： FIRE SENTRY SYSTEMS INC. , CASTLEMAN, David, A. , WILLIAMS, Anthony, B. , SELSTAD, Chris, A.
IPC分类号： B05B05/053
CPC分类号： G01R31/026 , B05B5/08 , B05B12/12 , H02H7/003
摘要： A system and method for detecting and controlling ungrounded parts during the electrostatic coating process in order to improve production flow, provide an overall cost saving by efficient use of the coating material and prevention of accidental fires and false shutdown during production. The system (10) of the present invention comprises a detection system (47) for detecting any ungrounded parts (22) prior to entering a coating environment, such as a painting booth. The detection system (47) in accordance with one embodiment, comprises an array of detectors, specifically, an ultraviolet sensor (50), a radio-frequency wave sensor (52), an acoustic sensor (54) and a light sensor (46), which upon sensing specific characteristics generate representative signal waveforms. These waveforms are then compared with stored waveforms relating to profiles of sparking or corona discharge characteristics. Correlation circuits may correlate data obtained by two or more sensors in order to ensure that the spark or corona discharge is caused by an ungrounded part. In accordance with an alternative embodiment, the detection system (47) comprises a measuring device, such as a sensitive electric field meter, for measuring the electrical potential field between each part to be coated and ground.
摘要翻译：一种用于在静电涂覆过程中检测和控制未接地部件以提高生产流程的系统和方法，通过有效地使用涂层材料提供总体成本节省，并且防止意外的火灾和在生产期间的假关闭。本发明的系统（10）包括检测系统（47），用于在进入涂装环境之前如检漆室检测任何未接地部件（22）。根据一个实施例的检测系统（47）包括检测器阵列，具体地，紫外线传感器（50），射频波传感器（52），声传感器（54）和光传感器（46），其在感测特定特性时产生代表性的信号波形。然后将这些波形与与火花或电晕放电特性曲线相关的存储波形进行比较。相关电路可以将由两个或多个传感器获得的数据相关联，以确保火花或电晕放电是由未接地部分引起的。根据替代实施例，检测系统（47）包括测量装置，例如敏感电场仪，用于测量待涂覆和被磨削的每个部件之间的电势场。

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