JPS62201020U

JPS62201020U -

Info

Publication number: JPS62201020U
Application number: JP3626987U
Authority: JP
Priority date: 1987-03-12
Filing date: 1987-03-12
Publication date: 1987-12-22

Description

[Brief explanation of the drawing]

第１図ａおよびｂは従来の水道メータを示す平
面図および断面図、第２図は本考案の一実施例を
示すブロツク図および第３図はリセツト回路の具
体的な回路図である。第２図において、１……羽根車、８……永久磁
石、９……磁気センサ部、１０……駆動検出回路
、１１，１２……演算回路、１３，１４……駆動
回路、１５……リセツト回路。 1A and 1B are a plan view and a sectional view showing a conventional water meter, FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a specific circuit diagram of a reset circuit. In FIG. 2, 1... impeller, 8... permanent magnet, 9... magnetic sensor section, 10... drive detection circuit, 11, 12... calculation circuit, 13, 14... drive circuit, 15... reset circuit.

Claims

[Scope of utility model registration request]

An impeller that rotates in proportion to the amount of water used, a permanent magnet that is attached to the shaft of this impeller and rotates in accordance with the rotation of the impeller, and a magnetic sensor that converts changes in the magnetic field of this permanent magnet into electrical signals. , a drive detection circuit that amplifies the output of this magnetic sensor section and shapes the amplified signal into a pulse indicating the rotation of the impeller, and converts the output signal of this drive detection circuit into a pulse indicating the rotation of the impeller. a first arithmetic circuit that converts and integrates the total amount of water used; a second arithmetic circuit that converts and integrates the output signal of the drive detection circuit into the amount of water used and calculates the amount of water used in an arbitrary period; one display means for simultaneously displaying the contents of the first and second arithmetic circuits, a driving circuit for displaying the contents of the first and second arithmetic circuits on the display device, respectively; a reset circuit that clears only the contents of the arithmetic circuit; and a power source that supplies power to the magnetic sensor section, the drive detection circuit, the first and second arithmetic circuits, the drive circuit, and the reset circuit. An electronic liquid level meter characterized by displaying the total amount used and the amount used for any given period at the same time.