发明名称 TRANSMITTING DEVICE FOR PROCESS SIGNAL
摘要 PURPOSE:To transmit a long term process signal accurately and stably, by using the liquid crystals producing optical change corresponding to the quantity of process and having similar aging characteristic at transmitting end and receiving end respectively.
申请公布号 JPS52141255(A) 申请公布日期 1977.11.25
申请号 JP19760058028 申请日期 1976.05.19
申请人 YOKOGAWA ELECTRIC WORKS LTD 发明人 YAMAGUCHI KADONORI;OOTAKA YOUICHI
分类号 H04B10/00;G01D5/12;G01D5/26;G08C19/00;G08C23/04;G08C25/00 主分类号 H04B10/00
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