发明授权
US5543613A Multi-digit fluid flow roller meter 失效
多位流体流量计

Multi-digit fluid flow roller meter
摘要:
A multi-digit roller meter with encoder for the electronic read-out of a volume measuring instrument or a current measuring instrument, which during the twisting or turning of sensors in relation to the indicator wheels through a determined angle, allows the determination of the instantaneous indicator reading via markings placed on the indicator wheels in irregular spacings.
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