A portable intelligent fruit and vegetable respiration intensity measuring device and measuring method

Abstract

The invention provides a portable intelligent fruit and vegetable respiration intensity measuring device and method. The portable intelligent fruit and vegetable respiration intensity measuring device comprises an air inlet and is characterized in that the air inlet is connected to a first-stage carbon dioxide absorption chamber; the first-stage carbon dioxide absorption chamber is communicated with a second-stage carbon dioxide absorption chamber; the second-stage carbon dioxide absorption chamber is communicated with a buffer chamber; the buffer chamber is communicated with a sample chamber; the sample chamber is communicated with a drying chamber; and the drying chamber is communicated with a measuring and analyzing chamber and is connected to an air outlet. The portable intelligent fruit and vegetable respiration intensity measuring device provided by the invention is capable of measuring the respiration intensity of fruits and vegetables rapidly, simply and conveniently; and in addition, because of integrated design, the portable intelligent fruit and vegetable respiration intensity measuring device is portable and small as well as convenient to carry, and can be applied to various measurement environments.

Description

technical field [0001] The invention relates to the field of measuring devices, in particular to a portable intelligent fruit and vegetable respiration intensity measuring device and a measuring method. Background technique [0002] Harvested fruits and vegetables and other horticultural products are still living individuals, and in order to maintain life activities, respiration must be carried out. Respiration intensity is an important indicator to measure the respiration of horticultural products such as fruits and vegetables. Determination of respiration intensity can measure the strength of respiration, understand the physiological state of fruits and vegetables after harvest, and provide necessary data for low temperature and controlled atmosphere storage and transportation, and calculation of respiratory heat. Therefore, when studying or dealing with storage problems of fruits and vegetables, it is often used to measure respiratory intensity. Respiration intensity is ...

AI Technical Summary

Problems solved by technology

The device of static method is simple, but in a closed environment, the respiration of fruits and vegetables will be inhibited due to the increase of carbon dioxide content, so the results obtained by static method are not accurate

The airflow method is more accurate than the static method, but it is not easy to carry because it needs to be absorbed by lye and then titrated with oxalic acid

The infrared carbon dioxide analyzer method is improved on the basis of the airflow method, and the lye absorption titration at the end is changed to infrared carbon dioxide analysis and measurement, but the air inlet section still uses high-concentration lye to absorb carbon dioxide in the air, which is not convenient Carried, and there are safety hazards

The result of gas chromatography is accurate and the precision is high, but the required gas chromatograph is expensive and cannot be used portablely

The direct data obtained by the static method and the air flow method are the amount of oxalic acid used for titration, and the direct data obtained by the infrared carbon dioxide analyzer and gas chromatography are the carbon dioxide content. No matter what kind of data it is, it needs to be substituted into the formula for multiple calculations, which increases the probability of error. It also consumes analysis time, and the measurement results cannot be obtained in the first time

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