U-shaped open channel supersonic flowmeter
A flowmeter and ultrasonic technology, applied in the field of measurement and metering, can solve the problems of difficult connection between channel and field water level, large water head loss, troublesome device installation, etc., and achieve the effect of low power consumption, large water head loss and high cost
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[0014] See the hardware circuit figure 1 As shown, the core unit single-chip microcomputer adopts ATmegal6L, the ultrasonic probe adopts 40KHz, the transmitting probe is connected to the single-chip microcomputer through the driving circuit, the receiving probe is connected to the single-chip microcomputer through the signal detection circuit, the driving circuit and the signal detection circuit are coordinated by the synchronization maintaining circuit; the temperature compensation circuit adopts digital Temperature integrated circuit DS18b20, its signal pin is directly connected to the single-chip microcomputer; the storage module adopts EEProm 24C512, which is directly connected to the single-chip microcomputer; the liquid crystal display module uses the Chinese dot matrix liquid crystal module LCD12864, which is connected to the single-chip microcomputer through serial communication; the keyboard input module is set with four Button, select the panel film light touch button, ...
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