CN114001659B - Small-size whale sample morphological parameter measuring device - Google Patents

Small-size whale sample morphological parameter measuring device Download PDF

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Publication number
CN114001659B
CN114001659B CN202111280611.2A CN202111280611A CN114001659B CN 114001659 B CN114001659 B CN 114001659B CN 202111280611 A CN202111280611 A CN 202111280611A CN 114001659 B CN114001659 B CN 114001659B
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measuring
frame
whale
small
specimen
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CN114001659A (en
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寇章兵
张长群
郝玉江
周昊杰
王克雄
王丁
陈瑞鹏
闵婕
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Institute of Hydrobiology of CAS
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Institute of Hydrobiology of CAS
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

Abstract

The invention discloses a small whale specimen morphological parameter measuring device which comprises a cubic measuring frame, a measuring plate, a bearing plate, a measuring barrel, a liquid level meter, a lifting hook, an electronic hanging scale, a lifter, a photographic platform and a bearing wheel. The measuring plate is provided with grid scale lines, the camera platform is arranged right above the measuring plate and at the center, the levelness and the height of the camera can be adjusted through the adjusting support, the volume measuring barrel is arranged on the bearing plate, the liquid level height of the camera platform is measured through the liquid level meter, the lifting hook is suspended on the measuring frame above the measuring barrel through the electronic hanging scale and used for measuring the weight of the sample in the air and the weight of the change after soaking, and the volume and the sectional density of the sample are calculated according to the weight and the reading of the measuring barrel. The invention can simultaneously measure the geometric dimension parameter, the appearance form parameter, the weight parameter and the volume parameter of the small whale specimen, greatly simplifies the workload and reduces the potential factor of the conventional parameter measurement method for damaging the animal specimen.

Description

Small-size whale sample morphological parameter measuring device
Technical Field
The invention belongs to the field of animal research, relates to small whale specimen research auxiliary equipment, and particularly relates to a small whale specimen morphological parameter measuring device.
Background
In Liaokuai of China, more than 30 whale animals living in the sea area of China are stranded to die every year, and measurement of body type parameters of whale specimens is important for whale research. Generally, collected whale specimen body type parameters need to be accurately measured, including animal weight, body length, body circumference, volume, density, surface area and the like, and meanwhile, individual marking parameters and characteristics need to be shot through photographing, and as the whale animal body is in a fusiform shape, the accurate measurement of relevant parameters of animals has certain difficulty, so that the integrated device is developed for the accurate measurement of small whale animal body type parameters, the integrated device can be integrally disassembled and assembled, and is convenient for laboratories and field use, and the integrated device specifically comprises the following components: the device comprises a rectangular metal bottom plate with wheels, a PVC flexible cutting plate, a transparent acrylic cylindrical barrel, a support, an electronic hanging scale, a fixed pulley with a hook, a camera horizontal suspension support and the like.
Disclosure of Invention
The invention aims to provide a small whale specimen morphological parameter measuring device to solve the problem that the finless porpoise specimen morphological parameter measurement in the prior art is difficult.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a small-size whale sample morphological parameter measuring device which characterized in that: the measuring device comprises a cubic measuring frame, wherein a measuring plate and a bearing plate are arranged at the bottom in the measuring frame, grid scale marks for measuring the geometric dimension of a small whale specimen are arranged on the measuring plate, and a camera capable of observing or photographing the small whale specimen is arranged on the measuring frame above the measuring plate; be equipped with the measuring bucket that is used for measuring small-size whale sample volume and weight on the bearing plate, splendid attire water in the measuring bucket, the measuring bucket still is equipped with the level gauge of liquid level in the measuring bucket, be equipped with the lifting hook of hoist and mount small-size whale sample on the measuring frame of measuring bucket top, to the electron steelyard that hoist and mount small-size whale sample and the elevating system that can hoist small-size whale sample, the lifting hook passes through the electron steelyard and installs on elevating system.
Furthermore, the measuring frame is composed of a bottom rectangular frame, a top rectangular frame and an upright post connecting the two rectangular frames, the upright post is a hydraulic telescopic rod capable of adjusting the height, and the measuring plate and the bearing plate are both arranged on the bottom rectangular frame.
Furthermore, four corners of the bottom rectangular frame are respectively provided with universal wheels with brakes.
Furthermore, a ladder convenient for mounting a camera is arranged between the bottom rectangular frame and the top rectangular frame.
Furthermore, a hoisting frame for installing a lifting mechanism is arranged on the top rectangular frame; the lifting mechanism comprises a supporting beam, a fixed pulley, a pull rope and a winch, the supporting beam is installed on a hoisting frame, the fixed pulley is installed at the bottom of the supporting beam, the winch is installed on a measuring frame, the lifting hook is installed at the lower end of the electronic hanging scale, the upper end of the electronic hanging scale is connected with the pull rope, and the pull rope is connected to the winch after bypassing the fixed pulley, so that the lifting hook is hung above the measuring barrel.
Further, the supporting beam is installed on the hoisting frame through the translation mechanism, so that the lifting hook can move right above and on the side of the measuring bucket, and small whale specimens can be conveniently loaded into and taken out of the measuring bucket.
Further, be equipped with two guide rails on the hoist and mount frame, a supporting beam both ends are equipped with the spout of installing on two guide rails, and the guide rail inboard is equipped with the rack, be equipped with on the supporting beam with rack toothing's gear, the gear passes through translation motor or rocking handle drive, drives a supporting beam and its below lifting hook along the guide rail round trip movement of hoist and mount frame through rack and pinion structure.
Furthermore, the measuring plate is made of a PVC plate, the grid scale marks are formed by staggering longitudinal scale marks and transverse scale marks, the longitudinal scale marks and the transverse scale marks are marked by different colors, and the scales of the grid scale marks are accurate to millimeters.
Furthermore, the liquid level meter is a cylindrical pipe made of transparent materials, scale marks for reading the height are arranged on the cylindrical pipe, the scale marks are accurate to millimeters, and the cylindrical pipe is connected with the measuring barrel through a communicating pipe.
Further, the measuring barrel is a cylindrical barrel made of transparent acrylic materials, and the liquid level meter is made of transparent PVC pipes.
The invention has the following beneficial effects:
the miniature whale specimen body length measuring device can be integrally disassembled, assembled and moved, is convenient for being used in laboratories and in the field, can simultaneously measure parameters such as body length, body width, weight, volume, density and surface area of a miniature whale specimen, and is also provided with a camera fixing plate for shooting a standard posture picture of the specimen, so that the workload can be greatly simplified, the efficiency and the accuracy of measuring the body shape parameters of the miniature whale specimen are improved, and meanwhile, the damage of the parameter measuring process to the specimen can be effectively reduced.
Drawings
FIG. 1 is a schematic view of the structure of a small whale specimen morphological parameter measuring device of the invention.
1-measuring frame, 101-bottom rectangular frame, 102-top rectangular frame, 103-upright post, 104-cross beam, 105-longitudinal beam, 107-hoisting frame, 108-guide rail, 2-measuring plate, 3-bearing plate, 4-ladder, 5-camera, 6-photographic platform, 7-measuring barrel, 8-lifting hook, 9-electronic hanging scale, 10-fixed pulley, 11-supporting beam, 12-winch, 13-universal wheel, 14-rack, 15-translation motor, 16-sliding chute, 17-gear and 18-liquid level meter.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figure 1, the invention provides a small-sized whale specimen morphological parameter measuring device, which comprises a cubic measuring frame 1, wherein a measuring plate 2 and a bearing plate 3 are arranged at the bottom in the measuring frame 1, grid scale lines for measuring the geometric dimension of the small-sized whale specimen are arranged on the measuring plate 2, and a camera 5 capable of observing or photographing the small-sized whale specimen is arranged on the measuring frame 1 above the measuring plate 2; be equipped with on the bearing plate 3 and be used for measuring bucket 7 of small-size whale sample volume and weight, splendid attire water in the measuring bucket 7 for measure the volume of animal, measure 7 bottoms intercommunication level gauges 18 of bucket, be equipped with the lifting hook 8 of hoist and mount small-size whale sample on the measuring frame 1 of measuring bucket 7 top, lifting hook 8 passes through electron steelyard 9 and installs on elevating system.
The measuring frame 1 comprises a bottom rectangular frame 101, a top rectangular frame 102 and a vertical column 103 for connecting the two rectangular frames, wherein the bottom rectangular frame 101 and the top rectangular frame 102 are completely the same and are formed by sequentially connecting two cross beams 104 and two longitudinal beams 105, a hoisting frame 107 is arranged above the right side of the top rectangular frame 102, a lifting hook is lifted through the hoisting frame 107, so that a specimen is conveniently hoisted, the hoisting frame 107 is also a cuboid frame, and the two longitudinal beams with the tops parallel to the longitudinal beams 105 are used as guide rails 108; as a preferred embodiment, the upright posts 103 are hydraulic telescopic rods capable of adjusting the height, so that the height of the top rectangular frame 102 can be adjusted to an optimal measurement height, so as to adapt to the measurement of small whale specimens with different sizes and prevent the small whale specimens from being damaged by excessive hoisting.
It should be noted that the upright column 103 of the present invention may adopt a hydraulic telescopic rod, or may adopt an upright column 103 with a fixed height, and when adopting a hydraulic telescopic rod, it may adopt a telescopic structure in the prior art, or may adopt an electric or hydraulic telescopic structure.
In order to improve the moving performance, four corners of the bottom rectangular frame 101 are provided with universal wheels 13 with brakes, so that the measuring frame 1 can move.
In order to facilitate the installation of the camera 5 and the direct observation of human eyes, a ladder 4 is arranged between the bottom rectangular frame 101 and the top rectangular frame 102, and a person can directly climb onto the top rectangular frame 102 through the ladder 4. In order to mount the camera 5 and adjust the observation height, a camera platform 6 can be arranged on the top rectangular frame 102, in order to adjust the levelness of the camera, the camera 5 is mounted on the camera platform 6 through an adjusting bracket, the levelness and the height of the camera are adjusted through an adjusting bracket (not shown in the figure), and in addition, a level laser instrument can be arranged for feedback correction of the levelness and measurement of the distance between the measuring plate and the measuring plate.
In the embodiment of the invention, the lifting mechanism comprises a supporting beam 11, a fixed pulley 10, a pulling rope and a winch 12, wherein the supporting beam 11 is arranged on a hoisting frame 107, the fixed pulley 10 is arranged at the bottom of the supporting beam 11, the winch 12 is arranged on two upright posts 103 on the side surface of the measuring frame 1 through a bracket, the lifting hook 8 is arranged at the lower end of the electronic hanging scale 9, the upper end of the electronic hanging scale 9 is connected with the pulling rope, and the pulling rope is connected to the winch 12 after bypassing the fixed pulley 10, so that the lifting hook 8 is suspended above the measuring barrel 7; the weight of the small whale specimen in the air and the changed weight of the small whale specimen after being soaked are measured through the electronic hanging scale, and the sectional density and the average density of the specimen can be calculated according to the weight change and the sectional volume measured by the measuring barrel 7.
The support beam 11 is mounted on the lifting frame 107 by a translation mechanism so that the hook 8 can move right above and sideways to the measuring bucket 7 to load and unload the small whale specimen into and out of the measuring bucket 7. In the implementation of the invention, the two ends of the supporting beam 11 are provided with sliding grooves 16 for being mounted on two guide rails 108, the inner sides of the guide rails 108 are provided with racks 14, the supporting beam 11 is provided with gears 17 engaged with the racks, the gears 17 are driven by a translation motor 15 or a rocking handle, and the supporting beam 11 and the lifting hook 8 below the supporting beam are driven by a gear and rack structure to move back and forth along the guide rails 108 on the hoisting frame 107.
As a preferred embodiment, the measuring plate 2 is made of PVC plate, the grid scale marks are composed of interlaced longitudinal scale marks and transverse scale marks, and the longitudinal scale marks and the transverse scale marks are marked with different colors to the accuracy of 1mm.
As a preferred embodiment, the liquid level meter 18 is a cylindrical tube made of transparent material, the cylindrical tube is provided with scale marks for reading height, the accuracy is 1mm, and the cylindrical tube is connected with the measuring barrel 7 through a communicating tube.
As a preferred embodiment, the measuring barrel 7 is a cylindrical barrel made of transparent acrylic material, and the liquid level gauge 18 is made of transparent PVC pipe.
The invention provides an illustration for manufacturing a small whale specimen morphological parameter measuring device, which comprises the following specific steps:
1. the manufacturing method comprises the steps of manufacturing rectangular frames, connecting a steel structure into two 1500mm 3000mm rectangular frames by using 304 stainless steel square tubes with the side length of 50mm, wherein the two rectangular frames are respectively used as a bottom rectangular frame 101 and a top rectangular frame 102, installing wheels with brakes at the bottoms of 4 corners of the bottom rectangular frame 101, constructing supports for installing upright posts 103 at four corners of the bottom rectangular frame 101, constructing a hoisting frame 107 on the top rectangular frame 102, and setting two longitudinal beams at the top of the hoisting frame 107 as guide rails 108.
2. Measuring plate 2, purchase blue flexibility on the market, thickness is 3 mm's PVC offset plate, the specification is 1500mm 2000mm, draw white little square into as the unit with 5mm, mark the scale with mm unit all around, finally form the grid scale mark of blue end white word, will measure plate 2 after the preparation and install at bottom rectangular frame 101 left end, draw the stainless steel sheet that the size is 1500mm 900mm, install at bottom rectangular frame 101 right-hand member as bearing plate 3.
3. Manufacturing a measuring barrel 7, namely taking a transparent acrylic cylindrical tube with the diameter of 800mm, sealing the bottom, wherein the length of the cylinder is 2000-2500mm, (note: the length is determined according to the length of the animal body to be measured), a small hole with the diameter of 20mm is tightly attached to the upper part of the sealed bottom and is used as a communicating hole, a 4-branch water tank joint with internal threads is installed in the communicating hole, the water tank joint is installed firstly, and then the bottom is sealed, so that the measuring barrel 7 is formed; the level gauge 18 is made, a 4-minute transparent PVC pipe is taken, the length is equal to the height of the measuring barrel 7, a paper non-setting adhesive graduated scale is pasted on the transparent PVC pipe, then a communicating pipe is used for connecting the water tank connector with the transparent PVC pipe, the bottom of the transparent PVC pipe is sealed, a 4-minute pipe clamp is pasted on the acrylic barrel at intervals of 500mm, the transparent PVC pipe is fixed to be in a vertical state through the pipe clamp, and the level gauge 18 is made.
4. Measuring frame 1 installation preparation, according to the measurement of measuring different kinds of body length animals, design into can over-and-under type measuring frame 1, at four angle installation hydraulic telescoping rod of bottom rectangular frame 101, at the installation of hydraulic telescoping rod top rectangular frame 102 completion measuring frame 1's installation, when hydraulic telescoping rod's height was not enough, can set up stainless steel square pipe as the stand and increase measuring frame's overall height at hydraulic telescoping rod's top and bottom.
A steel plate with the size of 1500mm & lt 000 & gt is arranged on two longitudinal beams 105 of the top rectangular frame 102 above the measuring plate 2 to serve as a photographing platform 6, and a round hole is formed in the middle of the photographing platform 6 and used for installing a camera 5 or observing by human eyes.
A supporting beam 11 is arranged on a hoisting frame 107, taking the driving of a translation motor as an example, a translation motor 15 is arranged on the end part of the supporting beam 11, a fixed pulley 10 is arranged in the middle part, a rack 14 is arranged on the inner side of a guide rail 108 of the hoisting frame 107, a gear 17 is arranged on an output shaft of the translation motor 15, and a winch 12 is arranged on the upper parts of two upright posts 103 on the right side through a bracket; fixing a lifting hook 8 at the bottom of an electronic hanging scale 9, fixing the top of the electronic hanging scale 9 on a pull rope, and winding the pull rope on a winch 12 after the pull rope passes through a fixed pulley 10; and finishing the manufacture of the small whale specimen morphological parameter measuring device.
For the installation of the measuring frame 1, the invention also provides another manufacturing method, according to the measurement of animals with different body lengths, the lifting measuring frame 1 is designed, a stainless steel square tube with the size larger than that of a rectangular frame is selected to manufacture the lower upright post 103, specifically, the stainless steel square tube with the side length of 60mm and the wall thickness of 2mm is used, the stainless steel square tube with the length of 2000mm is installed on 4 supports to form an outer sleeve tube at the lower part of the upright post 103, then 4 square tubes with the side length of 50mm and the height of 4000mm are respectively installed in each outer sleeve tube as inner tubes, screw holes are formed in the outer sleeve tube and the inner tubes at different heights and are connected through bolts to form the upright post 103, the height adjustment of the upright post 103 is completed by selecting the screw holes at different heights, the top rectangular frame 102 is connected to the tops of the four inner tubes, and the installation of the lifting measuring frame 1 is completed.
The invention also provides a method for measuring the morphological parameters of the finless porpoise specimen, which comprises the following steps:
1. when an animal is measured for a long time, a small whale specimen is carried to the measuring plate 2 through manpower or external force, then the tail of the animal is aligned to the zero scale line on the scale plate, and the head of the animal is tightly attached to the vertical scale plate through the flat ruler. The body length of the animal can be read directly from the vertical point of the scale on the long edge of the scale plate and the ruler.
2. And (5) photographic identification. After the animal body length measurement is completed, the measuring plate 2 is horizontally placed, the camera 5 is placed in a circular hole in the middle of the photographing platform 6, the lens is vertically downward, the vertical distance between the lens and the measuring plate 2 is 4 m, the animal is moved, and photographing is carried out in different body positions.
3. The weight, the volume measurement, fill 1/3 fresh water in the measuring bucket 7 that transparent ya keli made earlier, move measuring plate 2 top with lifting hook 8 through translation mechanism, tie up the animal afterbody with the rope and hang upside down on lifting hook 8, rope and hoist engine 12 through walking around on the pulley, slowly hoist the animal, highly reach yakeli bucket top, the cooperation moves translation mechanism simultaneously, make lifting hook 8 translate to measuring bucket 7 top, control hoist engine 12 release stay cord again, slowly put small-size whale sample into the bucket, according to together with the ware principle, can read out the interior liquid ascending scale of bucket of putting into different sections of animal position from the scale on the transparent PVC pipe of measuring bucket 7 outside, and note down the unit of liquid level that rises, because measuring the bucket 7 internal diameter is known, can calculate according to the cylinder volume formula, the accurate volume of animal placement in every section of liquid, when putting into the bucket completely to whole animal, and animal head does not contact yakeli bucket bottom, and when the afterbody is totally invaded in the liquid, just can be according to the transparent PVC pipe on the record bucket outer wall, the whole animal volume of animal can be accurate the volume calculation.
The volume and weight formula is derived from the calculation formula as follows:
measuring the inner diameter R of the barrel 7;
the inner diameter r of the cylindrical tube as the level gauge 18;
animal weight reading: m 0
Reading at full immersion: m i
P% immersion at length reading: m ip
Actual volume measurement:
initial page height: h 0
Reading at full immersion: h i
P% immersion at length reading: h ip
Buoyancy of the animal when submerged F Floating body
The volume of the Hydrostatic Weighing Method (Hydrostatic Weighing Method) was calculated as follows:
volume at full immersion V i
F Floating body =ρ*g*V i
F Floating body =M 0 –M i
V i =(M 0 –M i )/(ρ*g);
P% immersion in body length time volume V ip
F Floating body =ρ*g*V ip
F Floating body =M 0 –M ip
V ip =(M 0 –M ip )/(ρ*g);
The Displacement volume Method (Water Displacement Method) is calculated as follows:
volume at full immersion V' i
V' i = Δ V measuring cylinder column + Δ V acrylic cylinder barrel;
=(H 0 –H i )*π*(r 2 +R 2 )/4;
p% immersion in body length time volume V ip
V' ip = Δ V measuring cylinder column + Δ V acrylic cylinder barrel;
=(H 0 –H ip )*π*(r 2 +R 2 )/4;
volume at full immersion V i Averaging;
V i average = (V) i+ V' i )/2;
P% immersion in body length time volume V ip Averaging;
V ip average = (V) ip+ V' ip )/2。
The above embodiments are only for illustrating the present invention and are not to be construed as limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims (6)

1. The utility model provides a small-size whale sample morphological parameter measuring device which characterized in that: the measuring device comprises a cubic measuring frame, wherein a measuring plate and a bearing plate are arranged at the bottom in the measuring frame, grid scale marks for measuring the geometric dimension of the small whale specimen are arranged on the measuring plate, and a camera capable of observing or photographing the small whale specimen is arranged on the measuring frame above the measuring plate; the measuring frame above the measuring barrel is provided with a lifting hook for lifting the small whale specimen, an electronic hanging scale for weighing the lifted small whale specimen and a lifting mechanism capable of lifting the small whale specimen, and the lifting hook is arranged on the lifting mechanism through the electronic hanging scale;
the measuring frame consists of a bottom rectangular frame, a top rectangular frame and an upright post for connecting the two rectangular frames, the upright post is a hydraulic telescopic rod capable of adjusting the height, and the measuring plate and the bearing plate are both arranged on the bottom rectangular frame;
a hoisting frame for installing a lifting mechanism is arranged on the top rectangular frame; the lifting mechanism comprises a supporting beam, a fixed pulley, a pull rope and a winch, the supporting beam is arranged on a hoisting frame, the fixed pulley is arranged at the bottom of the supporting beam, the winch is arranged on a measuring frame, the lifting hook is arranged at the lower end of the electronic hanging scale, the upper end of the electronic hanging scale is connected with the pull rope, and the pull rope is connected to the winch after bypassing the fixed pulley, so that the lifting hook is hung above the measuring barrel;
the supporting beam is arranged on the hoisting frame through the translation mechanism, so that the lifting hook can move right above and at the side of the measuring barrel, and small whale samples can be conveniently loaded into and taken out of the measuring barrel;
the liquid level meter is a cylindrical pipe made of transparent materials, the cylindrical pipe is provided with scale marks for reading the height, the scale marks are accurate to millimeters, and the cylindrical pipe is connected with the measuring barrel through a communicating pipe.
2. The apparatus for measuring morphological parameters of small whale specimens as claimed in claim 1, wherein: four corners at the bottom of the bottom rectangular frame are provided with universal wheels with brakes.
3. The apparatus for measuring morphological parameters of small whale specimens as claimed in claim 1, wherein: and a ladder convenient for mounting the camera is arranged between the bottom rectangular frame and the top rectangular frame.
4. The apparatus for measuring morphological parameters of small whale specimens as claimed in claim 1, wherein: the lifting frame is provided with two guide rails, two ends of the supporting beam are provided with sliding grooves which are arranged on the two guide rails, racks are arranged on the inner sides of the guide rails, the supporting beam is provided with gears which are meshed with the racks, the gears are driven by a translation motor or a rocking handle, and the supporting beam and a lifting hook below the supporting beam are driven by a gear-rack structure to move back and forth along the guide rails of the lifting frame.
5. The small whale specimen morphological parameter measurement device as claimed in claim 1, characterized in that: the measuring plate is made of a PVC plate, the grid scale marks are formed by staggering longitudinal scale marks and transverse scale marks, the longitudinal scale marks and the transverse scale marks are marked by different colors, and the scales of the grid scale marks are accurate to millimeters.
6. The apparatus for measuring morphological parameters of small whale specimens as claimed in claim 1, wherein: the measuring barrel is a cylindrical barrel made of transparent acrylic materials, and the liquid level meter is made of transparent PVC pipes.
CN202111280611.2A 2021-10-29 2021-10-29 Small-size whale sample morphological parameter measuring device Active CN114001659B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH285824A (en) * 1950-06-19 1952-09-30 Haller Paul Balance.
US7039220B2 (en) * 2002-08-14 2006-05-02 C-Scan, L.L.P. Methods and apparatus for the dimensional measurement of livestock using a single camera
US10473514B1 (en) * 2016-02-16 2019-11-12 Jerry L. Ostermann Livestock weighing device
CN107300410A (en) * 2017-07-31 2017-10-27 吉林普天农业开发有限公司 The method of non-cpntact measurement domestic animal weight and body chi device and its measurement and analyze data
CN209605869U (en) * 2019-03-28 2019-11-08 海南大学 A kind of fish body morphological data measuring device
CN211696631U (en) * 2020-04-23 2020-10-16 山西省农业科学院畜牧兽医研究所 Large-scale animal measuring device

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