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Time-of-flight generation circuit, related chip, flow meter and method

A time-of-flight and circuit-generating technology, which is applied in the directions of volume measurement, flow/mass flow measurement, liquid/fluid solid measurement, etc. It can solve the problems that the accuracy needs to be improved.

Active Publication Date: 2019-09-27
SHENZHEN GOODIX TECH CO LTD
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Problems solved by technology

[0002] Ultrasonic flow meter (ultrasonic flow meter) is a commonly used flow meter. Flow meters are widely used to detect the flow rate of fluids. Compared with other types of flow meters, ultrasonic flow meters are in pressure loss, minimum detectable flow rate and In terms of installation cost and other aspects, they all have great advantages, but the accuracy still needs to be improved, and further improvement and innovation are needed.

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  • Time-of-flight generation circuit, related chip, flow meter and method
  • Time-of-flight generation circuit, related chip, flow meter and method
  • Time-of-flight generation circuit, related chip, flow meter and method

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Embodiment Construction

[0018] The following disclosure provides various implementations or illustrations, which can be used to achieve different features of the disclosure. Specific examples of components and arrangements are described below to simplify the present disclosure. It will be appreciated that these descriptions are merely examples and are not intended to limit the disclosure. For example, in the description below, forming a first feature on or over a second feature may include some embodiments wherein the first and second features are in direct contact with each other; and may also include In some embodiments, additional components are formed between the first and second features, such that the first and second features may not be in direct contact. In addition, this disclosure may reuse reference symbols and / or labels in various embodiments. Such repetition is for the sake of brevity and clarity, and does not in itself represent a relationship between the different embodiments and / or ...

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Abstract

The present application discloses a time-of-flight generation circuit (30) coupled to a first transducer (302) and a second transducer (304), wherein the first transducer and the second transducer have a distance therebetween greater than zero, and a fluid having a flow rate sequentially flows through the first transducer and the second transducer. The time-of-flight generation circuit comprises: a transmitter (32) coupled to the first transducer; a receiver (35) coupled to the second transducer; a signal processing circuit (31) coupled to the transmitter and the receiver; and a cross-correlation circuit (36), a measuring circuit (37) and a converting circuit (38) which are coupled to the signal processing circuit. The present application further provides a related chip, a flow meter and a method.

Description

technical field [0001] The present application relates to a time-of-flight generation circuit and related chips, flow meters and methods. Background technique [0002] Ultrasonic flow meter (ultrasonic flow meter) is a commonly used flow meter. Flow meters are widely used to detect the flow rate of fluids. Compared with other types of flow meters, ultrasonic flow meters are in pressure loss, minimum detectable flow rate and In terms of installation cost and other aspects, they all have great advantages, but the accuracy still needs to be improved, and further improvement and innovation are needed. Contents of the invention [0003] One of the purposes of the present application is to disclose a time-of-flight generation circuit and related chips, flowmeter and method to solve the above problems. [0004] An embodiment of the present application discloses a time-of-flight generating circuit, coupled to a first transducer and a second transducer, wherein the distance betwee...

Claims

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Application Information

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IPC IPC(8): G01F1/66
CPCG01F1/662G01F1/667G01F1/668G01F25/10G01F15/024G01F1/698
Inventor 黄彦颖
Owner SHENZHEN GOODIX TECH CO LTD
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