A method for testing accuracy of animal breath calorimetry system

An inspection method and accuracy technology, which is applied in the field of inspection of the accuracy of the animal respiration calorimetry system, can solve problems such as complicated steps, many test contents, and failure to reflect the working performance of the respiration calorimetry system, and achieve the effect of reducing errors

Inactive Publication Date: 2011-11-30
INST OF ANIMAL SCI OF CHINESE ACAD OF AGRI SCI
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  • Abstract
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Problems solved by technology

The above three factors can be realized through gas pressure holding test, standard gas test and flow meter calibration respectively, but the test content is too much, the steps are complicated, and it cannot reflect the overall working performance of the respiratory calorimetry system, so it is difficult to evaluate quickly and accurately The accuracy of the system's test results

Method used

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  • A method for testing accuracy of animal breath calorimetry system
  • A method for testing accuracy of animal breath calorimetry system
  • A method for testing accuracy of animal breath calorimetry system

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[0059] (a) The actual data recorded in the experiment is shown in the table below.

[0060]

[0061] Note: (1) IO 2 、EO 2 、ICO 2 、ECO 2 is the average value of each gas concentration in 4 working cycles; (2) COH is the total anhydrous ethanol consumption of 4 alcohol lamps in each test chamber; (3) T is the time from the first alcohol lamp in each test chamber to its extinguishment Time difference, that is, the total time of continuous burning of the first alcohol lamp; (4) * This test uses an air mass flowmeter in a standard state, so the gas flow does not need to be converted from a non-standard state to a standard state.

[0062] (b) Calculation method and result: Carry out the calculation of following each index according to the calculation formula of above-mentioned content of the invention part, the result sees the following table.

[0063] project

in the air

Test cabin A

Test chamber B

Test cabin C

Test cabin D

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IFR ...

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Abstract

The invention discloses a method for inspecting the detection accuracy of an animal respiratory calorimetry system, which comprises the following steps: accurately weighing an alcohol lamp, wherein an appropriate amount of anhydrous alcohol is filled in the alcohol lamp; putting the alcohol lamp into a test chamber of a respiratory calorimetry system to be detected, and igniting the alcohol lamp to start a compensation test of the system; recording the start time and the internal and external temperatures, humidities and atmospheric pressures of the test chamber; after the system runs four operating cycles, extinguishing the alcohol lamp to complete the test; recording the end time, and weighing the alcohol lamp; and finally, according to the data acquired by the system, such as gas concentration, air mass flow, anhydrous alcohol consumption, burning time and the like, calculating the recovery ratios of carbon dioxide and oxygen, and then judging the detection accuracy of the animal respiratory calorimetry system. In the method disclosed by the invention, through burning the anhydrous alcohol, an animal respiratory test is simulated so as to rapidly and accurately assess the accuracy of detection results of the animal respiratory calorimetry system, thereby providing an important method and a technical means for the development of the verification test of the system.

Description

technical field [0001] The invention relates to a test method for the working performance of a detection system, in particular to a test method for the detection accuracy of an animal respiration calorimetry system. Background technique [0002] The metabolism of animal energy substances (protein, fat, carbohydrates) is the most basic substance metabolism in animals, and it has always been one of the important basic researches in animal nutrition and feed science. It has important theoretical basis and practical guiding significance in terms of energy requirements, formulation of feeding standards and scientific preparation of feed, as well as improving feed conversion utilization rate, improving animal product quality and production efficiency. [0003] The animal respiration calorimetry system can quantitatively evaluate the energy and substance metabolism of animals, and can monitor the oxygen consumption, carbon dioxide production, and methane production of animals under...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K19/00G01M3/26G01N33/00
Inventor 唐湘方张宏福
Owner INST OF ANIMAL SCI OF CHINESE ACAD OF AGRI SCI
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