| 摘要 |
To provide a heartbeat measuring device in which a ferrite antenna is accommodated in and fixed to a case without using a complicated fixing structure and while being adapted so as not to undergo an influence of an external impact. A transmitting ferrite antenna of a heart rate transmitter of the heartbeat measuring device is one constituted with a winding being applied to a rod-like ferrite core. In a heart rate transmitter case, there is formed an antenna accommodation concave part. The transmitting ferrite antenna is held in the antenna accommodation concave part with a cap-like antenna frame mounted to both ends of a rod-like ferrite core being fitted to an antenna frame fitting part of the antenna accommodation concave part. Further, an adhesive having an elasticity is filled in the antenna accommodation concave part.
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