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A two-channel ultrasonic flowmeter flow output circuit

A flow output, ultrasonic technology, applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, measuring devices, etc., can solve the problems of insufficient anti-interference ability and small pulse equivalent

Active Publication Date: 2020-03-24
潍坊奥博仪表科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention proposes a dual-channel ultrasonic flowmeter flow output circuit, which solves the limitations of the dual-channel ultrasonic flowmeter flow output circuit in the prior art, such as the inability to set a very small pulse equivalent and insufficient anti-interference ability

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  • A two-channel ultrasonic flowmeter flow output circuit
  • A two-channel ultrasonic flowmeter flow output circuit

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] Such as Figure 1-2 As shown, the two-channel ultrasonic flowmeter flow output circuit includes a controller MCU, one end of the controller MCU is connected to a drive circuit, the other end of the drive circuit is connected to an isolation circuit, and the drive circuit and the isolation circuit are respectively connected to The power supply voltage, the driving circuit and the isolation circuit are respectively connected to the ground terminal, the other e...

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Abstract

The invention provides a double-channel ultrasonic flowmeter flow output circuit. The double-channel ultrasonic flowmeter flow output circuit comprises a controller. The double-channel ultrasonic flowmeter flow output circuit is characterized in that one end of the controller is connected with a driving circuit, the other end of the driving circuit is connected with an isolation circuit, the driving circuit and the isolation circuit are connected with power voltage, the driving circuit and the isolation circuit are connected with a ground end, the other end of the isolation circuit serves as a pulse output end, and a CC0 output channel of a timer 1 of the controller is connected with a CC1 channel of a timer 0 of the controller. The problems that an existing double-channel ultrasonic flowmeter flow output circuit has limitation, a small pulse equivalent cannot be set, and the anti-interference capacity is insufficient are solved.

Description

technical field [0001] The invention belongs to the technical field of instrument circuits, in particular to a flow output circuit of a two-channel ultrasonic flowmeter. Background technique [0002] At present, there are many types of two-channel ultrasonic flowmeters on the market, and there are many manufacturers, but they are really unsatisfactory for the high-precision flow output circuit of the flowmeter. Some cumulative flow calibrations, but the mantissa loss is very serious. Some mantissas are lost very little, but the cumulative amount is not very accurate. These problems are caused by the limitations of the measurement output circuit. With the continuous development of the two-channel ultrasonic flowmeter market, it is particularly important to be able to output the flow signal accurately. There are basically two ways to output the flow signal of the flowmeter: analog signal and digital pulse signal. Analog signals have strict requirements on the field environme...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/66
CPCG01F1/667
Inventor 王俊郭志超李宗雪
Owner 潍坊奥博仪表科技发展有限公司