| 摘要 |
Disclosed is a meter for converting a measured analog value into a digital signal, and more particularly an ultra power-saving type meter having the function of converting a value measured into a digital signal, in which when a used amount measured by an analog meter reaches a predetermined value, the value is detected and converted into a digital signal, and then transmitted to a remote device using the minimum electric power, thereby reducing the power consumption rate and allowing the meter to be used for a long period of time without replacement of its battery for providing operating power to the meter. The ultra power-saving type meter comprises a link member (L), a reader switch (S), and a restriction part (h). The link member (L) provided with a magnet is hinged to a pointer needle of the meter, which is rotated according to the used amount of a flow. The link member (L) is eccentric from a central axis of rotation of the pointer needle. The reader switch (S) serves as a sensor for recognizing one rotation of the pointer needle as a digital signal by means of the magnet of the link member (L). The restriction part (h) temporarily restricts an entry of the link member into a sensing range of the reader switch (S), and then suddenly triggers the link member (L). The restriction part (h) is located on a designated position outside of the sensing range. The magnet of the link member rapidly passes through the sensing range of the reader switch regardless of a rotational speed of the pointer needle of the meter.
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