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.)
Toyota Motor Corp
Soken Inc
Original Assignee
Nippon Soken Inc
Toyota Motor Corp
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 Nippon Soken Inc, Toyota Motor CorpfiledCriticalNippon Soken Inc
Priority to JP8919278ApriorityCriticalpatent/JPS5516261A/ja
Publication of JPS5516261ApublicationCriticalpatent/JPS5516261A/ja
Publication of JPS5634802B2publicationCriticalpatent/JPS5634802B2/ja
A device for the direct measurement of the equivalent permanent sound level(Equivalent continuous sound level determination from instantaneous sonic intensity measurement during representative time period, describing electron measuring device and circuitry)