Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Hokushin Electric Corp, Yokogawa Electric Works LtdfiledCriticalYokogawa Hokushin Electric Corp
Priority to JP10464777ApriorityCriticalpatent/JPS5438171A/en
Publication of JPS5438171ApublicationCriticalpatent/JPS5438171A/en
PURPOSE: To detect and notify abnormality on an early occasion in a simple structure by issuing alarm with secondary abnormal signal corresponding to the times of abnormality occurrence of signal in regions generated by object.