Liquid drop measuring method and device

A measurement method, droplet technology, applied in the direction of measuring device, liquid/fluid solid measurement, measurement flow/mass flow, etc., can solve the problems of large instrument, low measurement accuracy, poor zero repeatability, etc., and achieve fast measurement dynamic speed, The effect of high measurement accuracy
CN1558187AInactive Publication Date: 2004-12-29SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2004-12-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to one kind of liquid drop measuring method and device. The measurement method includes adopting two vertically superposed position sensors and one capacitive sensor to measure the time for the liquid drop to pass through, adopting a frequency counter to count frequency and adopting microprocessor to calculate the liquid drop volume. The device includes two photoelectronic sensors, one capacitive sensor, one capacitance / frequency converter, one frequency pulse counter and one microprocessor. The present invention can measure the volume of each falling liquid drop directly with high precision and fast dynamic speed.
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Description

technical field

[0001] The invention relates to a liquid drop measurement method and device. Background technique

[0002] There are three main methods for measuring liquid droplets. One is the mechanical inverted bucket rain gauge, which uses the measurement of the number of mechanical reversals of the liquid drop bucket, so there are disadvantages such as complex mechanism and large instrument; the other is the siphon rain gauge. It adopts the method of measuring the change of the accumulated liquid level float of the droplets and releases the liquid level by siphon to restore the measurement zero point, so there are shortcomings of poor repeatability of the zero point and low measurement accuracy; the third is the photoelectric drop meter, which uses a photoelectric switch The method of counting the number of droplets, therefore, there is a problem that the change of droplet size will affect the measurement accuracy. Contents of the invention

[0003] The object of the...

Claims

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