CN113791045A - Standard device for tracing quantity value of gelatin measuring instrument and using method - Google Patents
Standard device for tracing quantity value of gelatin measuring instrument and using method Download PDFInfo
- Publication number
- CN113791045A CN113791045A CN202111079877.0A CN202111079877A CN113791045A CN 113791045 A CN113791045 A CN 113791045A CN 202111079877 A CN202111079877 A CN 202111079877A CN 113791045 A CN113791045 A CN 113791045A
- Authority
- CN
- China
- Prior art keywords
- gelatin
- transparency
- value
- measuring instrument
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A standard device for tracing the quantity value of a gelatin measuring instrument and a using method thereof. The invention relates to a calibration device, and aims to overcome the defects that in the prior art, a measurement calibration method for a gelatin tester and a corresponding measurement standard device for calibrating the performance of the instrument are lacked, and in the prior art, a measurement calibration method for a gelatin tester and a corresponding measurement standard device for calibrating the performance of the instrument are lacked, so that the problem that the measurement data of the gelatin tester cannot be traced is solved. The product is as follows: the middle part of the upper part of the pressing sheet is positioned right above the second arched groove, the pressing sheet is vertically placed in the first arched groove along the length direction of the shell, the transparency sheet is placed between the pressing sheet and the shell, and the pressing sheet is screwed on the pressing sheet screw hole and the shell through screws to tightly press the transparency sheet. The method comprises the following steps: and (3) carrying out value transmission and assignment on the transparency of the transparency sheet to serve as a standard value, adjusting the gelatin tester, carrying out calibration and measurement on the gelatin tester, calibrating the indication error of the gelatin tester, and calibrating the measurement repeatability of the gelatin tester. The invention is used for calibrating the performance parameters of the gelatin determinator.
Description
Technical Field
The invention relates to the technical field of measurement and calibration, in particular to a standard device for tracing the quantity value of a gelatin measuring instrument and a using method thereof.
Background
The gelatin is a macromolecular hydrophilic colloid with the relative molecular mass of about 50000-100000, and is a product obtained by modifying collagen. Gelatin is a colorless to pale yellow solid, and is classified into photographic gelatin, edible gelatin, and industrial gelatin according to its properties and uses. The raw materials for producing the gelatin mainly comprise skins and bones of animals, leather-making industry waste materials and the like. More than 60% of worldwide gelatin is used in the food and confectionery industry, as jellies in frozen foods and meat products, and as food coatings for making cakes and various coatings. The unique properties of gelatin make it play an important role in traditional photosensitive materials. The quality control requirements for gelatin vary from application to application. When used as a binder, the binder is required to have a high adhesive strength, and when used in the fields of photography, foods, medicines, etc., the purity is required to satisfy the requirement. Gelatin is widely used in the medical field due to its biodegradability, good biocompatibility and film-forming properties. The color and transparency of the gelatin have great influence on the appearance quality of the finished product, and when the light-colored capsule is produced, the gelatin is required to be as light as possible and have high transparency so as to ensure that the produced capsule has bright and beautiful color, and when the colorless transparent capsule is produced, the gelatin is required to be higher in transparency, and the transparency of the gelatin is an important control parameter of the quality of the gelatin product.
Gelatin transparency test, a gelatin transparency tester is currently in common use in national and industrial standards. The gelatin transparency tester consists of a light source, a monochromator, a sample chamber, a detector, a signal processing and displaying and storing system, and can detect a sample with transparency (5-95%) under specific wavelengths of 450nm and 620 nm. At present, no measurement calibration method of a gelatin measuring instrument exists in China, and no corresponding measurement standard device for calibrating the performance of the instrument exists, so that the consistency of measurement data of the gelatin measuring instrument produced by different manufacturers is poor, and therefore, the standard device for tracing the quantity value of the gelatin measuring instrument is urgently needed.
In summary, the prior art is lack of a measurement calibration method for a gelatin measuring instrument and a corresponding measurement standard device for calibrating the performance of the instrument, and has the problem that the quality of measurement data of the gelatin measuring instrument cannot be guaranteed.
Disclosure of Invention
The invention provides a standard device and a calibration method for tracing the quantity value of a gelatin measuring instrument, aiming at overcoming the problems that the prior art is lack of a measurement calibration method for the gelatin measuring instrument and a corresponding measurement standard device for calibrating the performance of the instrument, and the measurement data of the gelatin measuring instrument cannot be traced.
The technical scheme of the invention is as follows:
a standard device for tracing the quantity value of a gelatin tester comprises a plurality of gelatin tester transparency calibration blocks, wherein each gelatin tester transparency calibration block comprises a shell, a pressing sheet, a screw and a transparency sheet;
the shell is a cuboid and is vertically arranged along the length direction of the shell;
a first arched groove with an opening at the bottom is processed on the front end surface of the shell along the vertical direction, a light through hole is processed on the rear end surface of the shell, and the first arched groove and the light through hole are arranged correspondingly;
the pressing sheet is arched, and a second arched groove with an opening at the bottom is processed in the middle of the pressing sheet along the vertical direction;
the middle part of the upper part of the pressing sheet is positioned right above the second arched groove, the pressing sheet is vertically placed in the first arched groove along the length direction of the shell, the transparency sheet is placed between the pressing sheet and the shell, and the pressing sheet is screwed on the pressing sheet screw hole and the shell through screws to tightly press the transparency sheet.
A method for using a standard device for the quantity traceability of a gelatin determinator comprises the following steps:
step one, carrying out value transmission and assignment on the transparency of the transparency sheet as a standard value:
the transparency calibration block of the gelatin measuring instrument adopts a spectrophotometer or a primary spectrophotometer to carry out value transfer assignment on the transparency of the transparency sheet as a standard value.
Step two, adjusting a gelatin tester:
according to the requirements of the operating specification of the gelatin measuring instrument, after the gelatin measuring instrument is started and preheated, the testing wavelength is selected to be 450nm, and the gelatin measuring instrument is subjected to optical zero point and full-scale adjustment;
step three, calibrating and measuring a gelatin determinator:
adjusting the two pairs of gelatin measuring instruments, sequentially putting gelatin measuring instrument transparency calibration blocks with the transparencies of 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90%, aligning the light path of the gelatin measuring instrument to the light through hole, repeatedly measuring each gelatin measuring instrument transparency calibration block with the same transparency for 7 times, reading the display value of the gelatin measuring instrument, and recording the display value;
step four, calibrating the indication error of the gelatin determinator:
calculating the average value of the 7-time indication values of each gelatin determinator transparency calibration block with the same transparency, subtracting the corresponding standard value from the average value of the 7-time indication values of each gelatin determinator transparency calibration block with the same transparency, and taking the difference value as the indication value error of the transparency of the gelatin determinator, wherein the smaller the indication value error of the transparency, the higher the accuracy of the gelatin determinator measurement result is, and the larger the indication value error of the transparency, the lower the accuracy of the gelatin determinator measurement result is;
step five, measuring repeatability calibration of a gelatin determinator:
and calculating the relative standard deviation of the values of 7 readings of the transparency calibration block of the gelatin measuring instrument with the same transparency in the fourth step, wherein the standard deviation is used as the repeatability of the measurement of the gelatin measuring instrument.
And step six, adjusting the test wavelength to be 620nm according to the requirements of the use specification of the gelatin tester, adjusting the optical zero point and the full range of the gelatin tester, and repeating the steps three to five.
Compared with the prior art, the invention has the following effects:
the standard device for tracing the quantity value of the gelatin measuring instrument and the using method thereof are characterized in that a gelatin measuring instrument transparency calibration block is placed on the gelatin measuring instrument, light emitted from the gelatin measuring instrument is aligned to a transparency sheet, each gelatin measuring instrument transparency calibration block with the same transparency is repeatedly measured for 7 times, the average value of the 7-time indication values of each same transparency is calculated and compared with the corresponding standard value, and the indication value error and the measurement repeatability of the gelatin measuring instrument are measured. The standard device for the gelatin determinator magnitude traceability solves the magnitude traceability of the gelatin determinator, so that the measurement result of the gelatin determinator has traceability, and the measurement result of the gelatin determinator is accurate and reliable. The use method of the standard device for the gelatin determinator magnitude traceability ensures the consistency of the calibration result. The invention solves the problems that the measurement calibration method aiming at the gelatin measuring instrument and the measurement standard device used for the quantity value tracing of the instrument in the prior art are lack, and the quality of the measured data of the gelatin measuring instrument can not be ensured.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic representation of a compressed tablet of the present invention;
FIG. 4 is a rear perspective view of the present invention;
fig. 5 is a front perspective view of the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and the standard device for gelatin measuring instrument quantity tracing of the embodiment comprises a plurality of gelatin measuring instrument transparency calibration blocks, wherein each gelatin measuring instrument transparency calibration block comprises a shell 1, a tabletting 2, a screw and a transparency piece 3;
the shell 1 is a cuboid, and the shell 1 is vertically arranged along the length direction of the shell 1;
a first arched groove 4 with an opening at the bottom is processed on the front end surface of the shell 1 along the vertical direction, a light through hole 5 is processed on the rear end surface of the shell 1, and the first arched groove 4 and the light through hole 5 are arranged correspondingly;
the pressing sheet 2 is arched, and a second arched groove 6 with an opening at the bottom is processed in the middle of the pressing sheet 2 along the vertical direction;
the middle part of the upper part of the pressing sheet 2 is positioned right above the second arched groove 6, a pressing sheet screw hole 7 is processed, the pressing sheet 2 is vertically placed in the first arched groove 4 along the length direction of the shell 1, the transparent sheet 3 is placed between the pressing sheet 2 and the shell 1, and the pressing sheet 2 is screwed on the pressing sheet screw hole 7 and the shell 1 through screws to tightly press the transparent sheet 3.
The housing 1 is black and the material of the housing 1 is a metal material.
The second embodiment is as follows: referring to fig. 1, the overall size of the tablet 2 of the present embodiment is matched with the overall size of the first arched groove 4, the bottom of the housing 1, the bottom of the tablet 2 and the bottom of the transparent sheet 3 are flush, the overall size of the transparent sheet 3 is smaller than that of the tablet 2, and the overall size of the transparent sheet 3 is larger than that of the second arched groove 6. The rest is the same as the first embodiment.
The third concrete implementation mode: referring to fig. 2, the light transmitting hole 5 of the present embodiment has an outer dimension smaller than that of the first arcuate groove 4. The arrangement is such that the transparent sheet 3 is arranged corresponding to the light-transmitting hole 5, so that the light path on the gelatin measuring instrument just passes through the transparent sheet 3 when passing through the light-transmitting hole 5. The others are the same as in the first or second embodiment.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 2, in which the housing 1 of the present embodiment has a length a, a being 12mm, a width b, b being 12mm, a height h, and h being 50 mm. The others are the same as any one of the first to third embodiments.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 2, and the transparent sheet 3 of the present embodiment is an optical material, and has a reproducible transparency value in any one point in the range of 5% to 90%. The rest is the same as any one of the first to fourth embodiments.
The sixth specific implementation mode: in the present embodiment, in order to evaluate the transparency value error of the gelatin measuring instrument in a full-scale range by using the transparency value reproduced by the transparency sheet 3, the transparency value is generally selected to be 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% transparency value, and other values may be selected at regular intervals according to the need of calibration. The rest is the same as any one of the first to fifth embodiments.
The seventh embodiment: the method for using the standard device for the gelatin measuring instrument quantity tracing of the embodiment is described by combining fig. 1 to fig. 5, and comprises the following steps:
step one, carrying out value transmission and assignment on the transparency of the transparency sheet 3 as a standard value:
the transparency calibration block of the gelatin measuring instrument adopts a spectrophotometer or a primary spectrophotometer to carry out value transfer assignment on the transparency of the transparency piece 3 as a standard value.
Step two, adjusting a gelatin tester:
according to the requirements of the operating specification of the gelatin measuring instrument, after the gelatin measuring instrument is started and preheated, the testing wavelength is selected to be 450nm, and the gelatin measuring instrument is subjected to optical zero point and full-scale adjustment;
step three, calibrating and measuring a gelatin determinator:
adjusting the two pairs of gelatin measuring instruments, sequentially putting gelatin measuring instrument transparency calibration blocks with the transparencies of 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90%, aligning the light path of the gelatin measuring instrument to the light through hole 5, repeatedly measuring each gelatin measuring instrument transparency calibration block with the same transparency for 7 times, reading the display value of the gelatin measuring instrument, and recording the display value;
step four, calibrating the indication error of the gelatin determinator:
calculating the average value of the 7-time indication values of each gelatin determinator transparency calibration block with the same transparency, subtracting the corresponding standard value from the average value of the 7-time indication values of each gelatin determinator transparency calibration block with the same transparency, and taking the difference value as the indication value error of the transparency of the gelatin determinator, wherein the smaller the indication value error of the transparency, the higher the accuracy of the gelatin determinator measurement result is, and the larger the indication value error of the transparency, the lower the accuracy of the gelatin determinator measurement result is;
step five, measuring repeatability calibration of a gelatin determinator:
and calculating the relative standard deviation of the values of 7 readings of the transparency calibration block of the gelatin measuring instrument with the same transparency in the fourth step, wherein the standard deviation is used as the repeatability of the measurement of the gelatin measuring instrument.
And step six, adjusting the test wavelength to be 620nm according to the requirements of the use specification of the gelatin tester, adjusting the optical zero point and the full range of the gelatin tester, and repeating the steps three to five.
The specific implementation mode is eight: referring to fig. 1 to 5, the diameter of the light-transmitting hole 5 in the third step of the present embodiment is larger than the diameter of the light spot of the optical path vertical section of the gelatin measuring instrument, and the light spot is at the geometric center of the light-transmitting hole 5. The rest is the same as the seventh embodiment.
The present invention has been described in terms of the preferred embodiments, but it is not limited thereto, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the technical scope of the present invention.
Claims (8)
1. A standard device for the quantity value tracing of a gelatin determinator is characterized in that: the standard device comprises a plurality of gelatin measuring instrument transparency calibration blocks, wherein each gelatin measuring instrument transparency calibration block comprises a shell (1), a pressing sheet (2), a screw and a transparency sheet (3);
the shell (1) is a cuboid, and the shell (1) is vertically arranged along the length direction of the shell (1);
a first arch groove (4) with an opening at the bottom is processed on the front end surface of the shell (1) along the vertical direction, a light through hole (5) is processed on the rear end surface of the shell (1), and the first arch groove (4) and the light through hole (5) are arranged correspondingly;
the pressing sheet (2) is arched, and a second arched groove (6) with an opening at the bottom is processed in the middle of the pressing sheet (2) along the vertical direction;
the middle part of the upper part of the pressing sheet (2) is located right above the second arched groove (6) and is processed with a pressing sheet screw hole (7), the pressing sheet (2) is vertically placed in the first arched groove (4) along the length direction of the shell (1), the transparency sheet (3) is placed between the pressing sheet (2) and the shell (1), and the pressing sheet (2) is screwed on the pressing sheet screw hole (7) and the shell (1) through screws to compress the transparency sheet (3).
2. The standard apparatus for gelatin measurement gauge value traceability as claimed in claim 1, wherein: the overall dimension of the pressing sheet (2) is matched with the overall dimension of the first arch-shaped groove (4), the bottom of the shell (1), the bottom of the pressing sheet (2) and the bottom of the transparent sheet (3) are flush, the overall dimension of the transparent sheet (3) is smaller than that of the pressing sheet (2), and the overall dimension of the transparent sheet (3) is larger than that of the second arch-shaped groove (6).
3. A standard device for gelatin measuring machine value traceability according to claim 1 or 2, characterized in that: the overall dimension of the light through hole (5) is smaller than that of the first arched groove (4).
4. The standard apparatus for gelatin measurement gauge value traceability as claimed in claim 1, wherein: the length of the shell (1) is a, a is 12mm, the width is b, b is 12mm, the height is h, and h is 50 mm.
5. The standard apparatus for gelatin measurement gauge value traceability as claimed in claim 1, wherein: the transparency sheet (3) is made of optical material, and the reproduced transparency value range of the transparency sheet is any point in a range of 5% -90%.
6. A standard device for gelatin measuring apparatus quantity value tracing according to claim 5, wherein: in order to evaluate the transparency indication error of the gelatin measuring instrument in a full-scale range by the reproduced transparency measurement value of the transparency sheet (3), the transparency value is generally selected to be 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90% transparency value, and other value points can be adopted at equal intervals according to the calibration requirement.
7. The use method of the standard device for the quantity value tracing of the gelatin measuring instrument is characterized in that: it comprises the following steps:
step one, carrying out value transmission and assignment on the transparency of the transparency sheet (3) as a standard value:
the transparency calibration block of the gelatin measuring instrument adopts a spectrophotometer or a primary spectrophotometer to carry out value transfer and assignment on the transparency of the transparency sheet (3) as a standard value.
Step two, adjusting a gelatin tester:
according to the requirements of the operating specification of the gelatin measuring instrument, after the gelatin measuring instrument is started and preheated, the testing wavelength is selected to be 450nm, and the gelatin measuring instrument is subjected to optical zero point and full-scale adjustment;
step three, calibrating and measuring a gelatin determinator:
adjusting the two pairs of gelatin measuring instruments, sequentially putting gelatin measuring instrument transparency calibration blocks with the transparencies of 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90%, aligning the light path of the gelatin measuring instrument to the light through hole (5), repeatedly measuring each gelatin measuring instrument transparency calibration block with the same transparency for 7 times, reading the display value of the gelatin measuring instrument, and recording the display value;
step four, calibrating the indication error of the gelatin determinator:
calculating the average value of the 7-time indication values of each gelatin determinator transparency calibration block with the same transparency, subtracting the corresponding standard value from the average value of the 7-time indication values of each gelatin determinator transparency calibration block with the same transparency, and taking the difference value as the indication value error of the transparency of the gelatin determinator, wherein the smaller the indication value error of the transparency, the higher the accuracy of the gelatin determinator measurement result is, and the larger the indication value error of the transparency, the lower the accuracy of the gelatin determinator measurement result is;
step five, measuring repeatability calibration of a gelatin determinator:
and calculating the relative standard deviation of the values of 7 readings of the transparency calibration block of the gelatin measuring instrument with the same transparency in the fourth step, wherein the standard deviation is used as the repeatability of the measurement of the gelatin measuring instrument.
And step six, adjusting the test wavelength to be 620nm according to the requirements of the use specification of the gelatin tester, adjusting the optical zero point and the full range of the gelatin tester, and repeating the steps three to five.
8. The use method of the standard device for the value traceability of the gelatin measuring instrument, as claimed in claim 7, wherein: in the third step, the diameter of the light through hole (5) is larger than the diameter of a light spot on the vertical section of the light path of the gelatin determinator, and the light spot is positioned at the geometric center of the light through hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111079877.0A CN113791045B (en) | 2021-09-15 | 2021-09-15 | Standard device for tracing magnitude of gelatin tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111079877.0A CN113791045B (en) | 2021-09-15 | 2021-09-15 | Standard device for tracing magnitude of gelatin tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113791045A true CN113791045A (en) | 2021-12-14 |
| CN113791045B CN113791045B (en) | 2023-09-15 |
Family
ID=79183531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111079877.0A Active CN113791045B (en) | 2021-09-15 | 2021-09-15 | Standard device for tracing magnitude of gelatin tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113791045B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208255060U (en) * | 2018-06-13 | 2018-12-18 | 江西中医药大学 | A kind of portable glue class Chinese medicine optical detector |
| CN209460140U (en) * | 2018-12-26 | 2019-10-01 | 中国环境科学研究院 | A kind of portable water temperature and transparency one analyzer |
| CN112082882A (en) * | 2020-08-26 | 2020-12-15 | 中国人民解放军63856部队 | Ballistic gelatin calibration method based on spherical killer cell movement characteristics |
-
2021
- 2021-09-15 CN CN202111079877.0A patent/CN113791045B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208255060U (en) * | 2018-06-13 | 2018-12-18 | 江西中医药大学 | A kind of portable glue class Chinese medicine optical detector |
| CN209460140U (en) * | 2018-12-26 | 2019-10-01 | 中国环境科学研究院 | A kind of portable water temperature and transparency one analyzer |
| CN112082882A (en) * | 2020-08-26 | 2020-12-15 | 中国人民解放军63856部队 | Ballistic gelatin calibration method based on spherical killer cell movement characteristics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113791045B (en) | 2023-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kim-Pusateri et al. | In vitro model to evaluate reliability and accuracy of a dental shade-matching instrument | |
| MXPA01006360A (en) | Method and apparatus for determining the appearance of an object. | |
| US6457250B1 (en) | Apparatus for measuring conformance of manufactured food product | |
| CN113791045A (en) | Standard device for tracing quantity value of gelatin measuring instrument and using method | |
| CN104568775B (en) | The fast control method of animal glue class product quality | |
| CN106404792B (en) | A kind of acetes chinensis method of the high photosensitiveness tobacco shred wrapping paper based on Machine Vision Recognition Technology | |
| ZA200502087B (en) | Method of adjusting gray scale response to more closely correlate scanner based image analysis systems | |
| CN105606220B (en) | It is a kind of to optimize wavelength antidote and the spectrophotometric color measurement instrument using this method | |
| KR101455056B1 (en) | Coffee Colorimeter | |
| CN113899706A (en) | Method for measuring chromaticity of pharmaceutical adjuvant solid powder based on colorimeter | |
| CN206847782U (en) | Spectroradio luminance meter | |
| Witherspoon et al. | Analysis of fresh and dried apricot | |
| US10852250B1 (en) | Quantitative test method for striae in optical materials | |
| CN109142763A (en) | A kind of POCT detection device having auto-scaling and its implementation | |
| RU2346272C2 (en) | Method for determining quality of meat | |
| CN208263323U (en) | A kind of molding automatic adjusument mold | |
| CN113138023A (en) | Method for measuring color index of cut tobacco | |
| CN111721415A (en) | Color measuring instrument and method for realizing automatic compensation and accurate color measurement based on environmental change | |
| US20120010841A1 (en) | System and method for adjusting an on-line appearance sensor system | |
| US20220042876A1 (en) | System and method for detecting optical power of dry ophthalmic lenses | |
| JP2002207012A (en) | Method for determining quality of laver | |
| CN112198138B (en) | Automatic refractometer metering and calibrating device and using method thereof | |
| RU1772613C (en) | Measuring image sensor for high-precision conversion of linear dimensions of an object into electric signal 9240, ,1072 device for monitoring hole diameters | |
| CN211291747U (en) | Calibration device of color analyzer | |
| RU2281494C1 (en) | Device for measuring limit shift stress |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |