抄録
Regarding Aichi Tokei Denki' s electromagnetic flow sensor which has such disposable structure that its flow-pass portion in contact with liquid can be replaced easily, the resin molding and the bonding technology to construct two flow-passes in the disposal flow-pass chip with high precision are described. Furthermore, the two flow-passes of the disposal flow-pass chip can measure different fluids in different flow-rates. The electromagnetic flow sensor of disposable structure is able to cope with various applications, as replacement of the disposable flow-pass chip can easily be done by any nurse and engineer, because knowledge of flow measurement is not required for the replacement.