CN102628723A - Fowl egg mass center detecting method - Google Patents

Abstract

The invention relates to a fowl egg mass center detecting method, which belongs to the technical field of object characteristic parameter detection. The method comprises the following steps of: first, measuring maximum long axis diameter L of a fowl egg; weighing mass m of the fowl egg; fixing a special supporting piece at both big and small end points of the fowl egg by glues, wherein axis directions of the special supporting pieces are coincided with extension line of the maximum long axis diameter of the fowl egg; respectively placing the special supporting pieces on special supporting frames; keeping the supports in a horizontal state, wherein one special supporting frame is placed beyond a balance while the other special supporting frame is placed on an electronic balance; detecting mass m1 of the supporting point by the electronic balance; and calculating a distance J between mass center distance of the fowl egg and the small end point, wherein the calculation formula is J=Lm1/m. The fowl egg mass center detecting method provided by the invention can be applied to dynamics analysis and fowl egg freshness detection in fowl egg grading treatment.

Description

A kind of birds, beasts and eggs center of mass determination method

Technical field

The present invention relates to a kind of center of mass determination method of non-standard geometric configuration object, particularly a kind of birds, beasts and eggs center of mass determination method belongs to the determination techniques field of object features parameter.

Background technology

Barycenter is a birds, beasts and eggs essential characteristic parameter, is the basic parameter that the credit of the automatic hierarchical processing medium power of birds, beasts and eggs is analysed.At present; The research of birds, beasts and eggs essential characteristic; In the automatic classification of birds, beasts and eggs field; Many scholars have carried out based on the birds, beasts and eggs order of magnitude model of image processing techniques and the research of quality model, have set up duck's egg, egg order of magnitude model like Wang Qiaohua, Xiong Lirong, put down in week and have set up egg volume and surface area computing method and the prediction of quality model based on machine vision; In egg fowl breed breeding field, mainly study the relation of birds, beasts and eggs essential characteristic parameter and egg fowl kind.And aspect birds, beasts and eggs barycenter essential characteristic parameter, do not see the pertinent literature report.

Summary of the invention

The objective of the invention is in order to solve the deficiency of birds, beasts and eggs center of mass determination method, a kind of method of measuring the birds, beasts and eggs centroid position with weight method is provided.

Technical scheme of the present invention is:

A kind of birds, beasts and eggs center of mass determination method is carried out according to following step: measure the maximum major axis footpath L of birds, beasts and eggs, the quality m of weighing birds, beasts and eggs; With each fixing special-purpose support member of glue, its axis direction greatly enhances diameter of axle extended line with birds, beasts and eggs and overlaps at birds, beasts and eggs XO sub end points place; Special-purpose support member is placed on the special-purpose supporting frame respectively, and keeps support level, one of them special-purpose supporting frame is placed on beyond the electronic balance, and another is placed on the electronic balance, measures the quality m of this strong point through electronic balance₁The barycenter that utilizes lever principle to calculate birds, beasts and eggs is held end-point distances J apart from the microcephaly, and computing formula does

J=Lm₁/m。

Wherein said birds, beasts and eggs are various eggs, duck's eggs such as fresh hen egg, foreign egg, fresh duck's egg.

Beneficial effect of the present invention:

1, measure the method for birds, beasts and eggs centroid position with weight method, the measurement parameter that relates to is few, and computing method are simple, is superior to a staying and a suspension method.

2, help the foundation of birds, beasts and eggs dynamic analysis and model in the hierarchical processing.

3, one case is provided for the center of mass determination of non-standard solid food material.

Description of drawings

Fig. 1 is the synoptic diagram that weight method is measured the birds, beasts and eggs centroid position, and wherein 1 is birds, beasts and eggs, and 2 is special-purpose support member, and 3 is bracing frame, and 4 is supporting seat, and 5 is electronic balance.

Embodiment

Below in conjunction with 3 instances the present invention being elaborated again in the Figure of description, utilize the process of the mensuration of device shown in Fig. 1 birds, beasts and eggs barycenter following:

Get one piece of birds, beasts andeggs 1, two special-purpose support member 2 usefulness glue are individually fixed in the XO sub end points place of birds, beasts andeggs 1, and its axis is overlapped with birds, beasts andeggs 1 long axis; Special-purpose support member 2 with birds, beasts andeggs 1 is placed on respectively on the special-purpose supporting frame 3 then; And maintenance support level; One of them special-purpose supporting frame is placed on the supportingseat 4 beyond the electronic balance, and another is placed on the electronic balance 5, measures the quality m of this strong point through electronic balance₁

 

Embodiment 1

Get 200 pieces on fresh hen egg, measure its maximum major axis footpath with electronic digital indicatorL, with the quality m of electronic balance mensuration birds, beasts and eggs; Measure the quality m of this strong point through electronic balance₁Special-purpose support member is individually fixed in the XO sub end points place of 200 pieces of hen eggs with glue, then 200 pieces of hen eggs is placed on the special-purpose supporting frame respectively, and keep support level, measure the quality m of the strong point through electronic balance₁Utilize formula to calculate barycenter and hold end-point distances J apart from the microcephaly.200 pieces of average centroid positions of hen egg are 26.52 ± 1.52 (mm), and itself and maximum major axis are directlyLRatio be 0.49 ± 0.02 (approximate its major diameter midpoint that is positioned at of hen egg barycenter).

Embodiment 2

Get 200 pieces in foreign egg, measure its maximum major axis footpath with electronic digital indicatorL, with the quality m of electronic balance mensuration birds, beasts and eggs; Measure the quality m of this strong point through electronic balance₁Special-purpose support member is individually fixed in the XO sub end points place of 200 pieces of foreign eggs with glue, then 200 pieces of foreign eggs is placed on the special-purpose supporting frame respectively, and keep support level, measure the quality m of the strong point through electronic balance₁Utilize formula to calculate barycenter and hold end-point distances J apart from the microcephaly.200 pieces of average centroid positions of foreign egg are 27.61 ± 1.60 (mm), and itself and maximum major axis are directlyLRatio be 0.48 ± 0.02 (approximate its major diameter midpoint that is positioned at of foreign chicken birds, beasts and eggs barycenter).

Embodiment 3

Get 200 pieces in fresh duck's egg, measure its maximum major axis footpath with electronic digital indicatorL, with the quality m of electronic balance mensuration birds, beasts and eggs; Measure the quality m of this strong point through electronic balance₁Special-purpose support member is individually fixed in the XO sub end points place of 200 pieces of duck's eggs with glue, then 200 pieces of duck's eggs is placed on the special-purpose supporting frame respectively, and keep support level, measure the quality m of the strong point through electronic balance₁Utilize formula to calculate barycenter and hold end-point distances J apart from the microcephaly.200 pieces of average centroid positions of duck's egg are 28.20 ± 1.80 (mm), and itself and maximum major axis are directlyLRatio be 0.48 ± 0.02 (the approximate birds, beasts and eggs major diameter midpoint that is positioned at of duck's egg barycenter).

Claims (2)

Translated fromChinese

1.一种禽蛋质心测定方法，其特征在于按照下述步骤进行：测量禽蛋的最大长轴径L，称量禽蛋的质量m；在禽蛋大小头端点处用胶各固定一个专用支撑件，其轴线方向与禽蛋大长轴径延长线重合；将专用支撑件分别放置在专用支撑架上，并保持支撑水平，其中一个专用支撑架放置在电子天平以外，而另一个放置在电子天平上，通过电子天平测定该支撑点的质量m₁；利用杠杆原理计算出禽蛋的质心距小头端端点距离J，计算公式为：1. A method for measuring the center of mass of poultry eggs is characterized in that it is carried out according to the following steps: measure the maximum major axis diameter L of poultry eggs, weigh the quality m of poultry eggs; each fix a dedicated The axis direction of the support piece coincides with the extension line of the large major axis diameter of the poultry egg; the special support pieces are respectively placed on the special support frame, and the support level is kept, one of the special support frames is placed outside the electronic balance, and the other is placed on the On the electronic balance, measure the mass m₁ of the supporting point through the electronic balance; use the leverage principle to calculate the distance J between the mass center of the poultry egg and the end point of the small head end, and the calculation formula is:J=Lm₁/m   。J =Lm₁ /m .2.    根据权利要求1所述的一种禽蛋质心测定方法，其特征在于其中所述的禽蛋为新鲜草鸡蛋、洋鸡蛋或新鲜鸭蛋。2. The method for measuring the centroid of poultry eggs according to claim 1, wherein said poultry eggs are fresh grass eggs, foreign eggs or fresh duck eggs.

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