CN102590264A - Grease melting point measuring meter and method for measuring grease melting point by same - Google Patents
Grease melting point measuring meter and method for measuring grease melting point by same Download PDFInfo
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- CN102590264A CN102590264A CN2012100190859A CN201210019085A CN102590264A CN 102590264 A CN102590264 A CN 102590264A CN 2012100190859 A CN2012100190859 A CN 2012100190859A CN 201210019085 A CN201210019085 A CN 201210019085A CN 102590264 A CN102590264 A CN 102590264A
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Abstract
The invention relates to a grease melting point measuring meter and a method for measuring a grease melting point by the same, and aims to provide a device and a measuring method capable of automatically judging and recording the grease melting point so as to effectively overcome the defects of unstable artificial judgment and inaccurate measurement value. A host machine part of the grease melting point measuring meter disclosed by the invention is provided with a first liquid tank, a sample bracket, a first temperature sensor and a heating module, wherein the first temperature sensor is positioned in the first liquid tank, the heating module is arranged at the lower part of the first liquid tank, the sample bracket is positioned on the upper part of the first liquid tank, and the host machine part is also provided with a camera, an LED (light-emitting diode) light source and a computer. The camera is arranged on the upper part of the first liquid tank and is connected with the computer through a data line, and the LED light source is arranged beside the sample bracket.
Description
Technical field
The present invention relates to a kind of melting point detector, particularly relate to a kind of method that is used for grease Measurement of melting point appearance and uses its mensuration grease fusing point.
Background technology
Can understand the quality and the purity of grease through the fusing point that detects grease, have considerable meaning rationally utilizing grease.At present the method among the GB/T 24892-2010/ISO 6321:2002 is adopted in the grease fusing point test usually: under defined terms; Solidify fatty post for one section in end preparation capillaceous; It is immersed in the water-bath of certain depth; Water-bath is pressed schedule speed and is heated up, and the temperature when fatty post begins upwards to slide in the kapillary is defined as the fusing point of grease.But more loaded down with trivial details, the artificial judgment easy error of the manual method operation in the standard is repeatedly judged poor stability.
Summary of the invention
The technical matters that the present invention will solve provides a kind of grease melting point detector and a kind of method of using this grease melting point detector to measure the grease fusing point that can judge, write down numerical value automatically.
Grease melting point detector of the present invention; Grease melting point detector of the present invention, its host machine part are provided with first liquid bath, sample holder, first temperature sensor and heating module, and said first temperature sensor is positioned at the inside of first liquid bath; Heating module is arranged on the bottom of first liquid bath; Sample holder is positioned at the top of first liquid bath, and host machine part also is provided with camera, led light source and computing machine, and said camera is arranged on the top of first liquid bath; Link to each other with computing machine through data line, led light source is installed in the sample holder next door.
Grease melting point detector of the present invention, wherein host machine part also is provided with temperature controller, and said temperature controller links to each other with heating module.
Grease melting point detector of the present invention, the wherein said first liquid bath inside also is provided with magnetic stirrer, and said magnetic stirrer is positioned at distance first liquid bath bottom 2 centimeters.
Grease melting point detector of the present invention, wherein host machine part also is provided with 1～2 first refrigeration module, and said first refrigeration module is positioned at the sidepiece of liquid bath.
Grease melting point detector of the present invention, wherein said first refrigeration module adopts the semiconductor chilling plate of 30W, and the copper heat radiator is housed on the radiating surface of cooling piece, and the high rotating speed fan of 12V is housed on the said heat radiator.
Grease melting point detector of the present invention, wherein said first liquid bath adopt aluminium sheet to process, and inwall scribbles the Teflon material.
Grease melting point detector of the present invention, wherein said heating module adopts the PTC ceramic heating flake of 24V.
Grease melting point detector of the present invention, wherein said camera adjustable focal length, highest resolution is more than 1024 * 768dpi, maximum frame number is more than 24FPS.
Grease melting point detector of the present invention; Wherein also comprise a sample preparation apparatus; Said sample preparation apparatus comprises second liquid bath, second temperature sensor, second refrigeration module and controls platform; The sidepiece that second refrigeration module is positioned at second liquid bath is connected with second liquid bath, and second temperature sensor is positioned at the inside of second liquid bath.
A kind of method of using the grease melting point detector to measure the grease fusing point of the present invention comprises the steps:
One, the sample kapillary for preparing is fixed on the sample holder, keeps grease post one end down, put into first liquid bath of grease melting point detector, regulate capillary position, make 30mm graticule place under its immersed in liquid level;
Two, set camera to monitoring location capillaceous, be selected in the upper marginal position near grease post in the kapillary, this moment, the brightness value of monitored area was empty brightness capillaceous;
Three, the heating rate of design temperature controller is 1 ℃/min, starts heating module, experimentizes;
During four, near the grease melting temperature; Change heating rate into 0.5 ℃/min, the brightness value that computer acquisition, analysis camera transmit is when the grease post begins upwards to slip into the monitored area; The brightness value of monitoring location can raise and become the brightness of grease post; When reaching the brightness variable quantity of setting, promptly temperature has reached fusing point, and computing machine is noted temperature value this moment automatically;
Five, repeat three times, calculate the mean value of three temperature, get this mean value as measuring the result.
Grease melting point detector difference from prior art of the present invention is; Grease melting point detector of the present invention connects computing machine through camera is set in host machine part, and assisting down of led light source, camera sends the brightness of image value that collects to computing machine; Through the Computer Analysis brightness value; Judge whether to reach the grease fusing point, the defective that the artificial judgment instability is prone to make mistakes eliminated in record automatically.
Grease melting point detector of the present invention is also regulated the heating rate of heating module through temperature controller is set, and makes test result more accurate; Magnetic stirrer is set the biography temperature liquid in first liquid bath is stirred, guarantee that the temperature of liquid in first liquid bath is even; First refrigeration module is set,, improves testing efficiency so that before repeating to test, make biography temperature liquid in first liquid bath quickly recover to temperature before the test next time.
The present invention uses the grease melting point detector to measure the method for grease fusing point and the difference of prior art is that the grease that method of testing of the present invention adopts the Computer Analysis camera collection to transmit melts the brightness value in the kapillary of front and back; Automatically judge record fusing point numerical value, eliminated that artificial judgment is prone to make mistakes, the defective of test reading poor stability repeatedly.
Below in conjunction with accompanying drawing to grease melting point detector of the present invention and use its method of measuring the grease fusing point to be described further.
Description of drawings
Fig. 1 is the vertical view of grease melting point detector host machine part of the present invention;
Fig. 2 is the vertical view of grease melting point detector sample preparation apparatus of the present invention.
Embodiment
As shown in Figure 1, grease melting point detector of the present invention, its host machine part is provided with first liquid bath 1, sample holder 2, first temperature sensor 3 and heating module 4; First temperature sensor 3 is positioned at the inside of first liquid bath 1, adopts the platinum temperature sensor, and heating module 4 is arranged on the bottom of first liquid bath 1; Adopt the PTC ceramic heating flake of 24V, sample holder 2 is positioned at the top of first liquid bath 1, and sample holder 2 is provided with 6 sample wells; First liquid bath 1 adopts aluminium sheet to process, and inwall scribbles the Teflon material.Host machine part also is provided with camera 5, led light source 6 and computing machine, camera 5 adjustable focal length, and highest resolution is more than 1024 * 768dpi; Maximum frame number is more than 24FPS; Be arranged on the top of first liquid bath 1, and link to each other with computing machine, the image information that collects is transferred to computing machine analysis through data line through data line; Led light source 6 is installed in sample holder 2 next doors, and the effect of playing the brightness of increase sample is so that camera 5 images acquired.
Host machine part also is provided with temperature controller 8, adopts AI-518P program-type artificial intelligence temperature controller, and temperature controller 8 links to each other with heating module 4, regulates its heating rate, and 4 work of control heating module make test result more accurate.First liquid bath, 1 inside also is provided with magnetic stirrer 7, and magnetic stirrer 7 is positioned at distance first liquid bath 1 bottom 2 centimeters, stirs the biography temperature liquid in first liquid bath 1, and is even to guarantee its temperature.Host machine part also is provided with 1～2 first refrigeration module 9, is positioned at the sidepiece of first liquid bath 1, so that before repeating to test, make biography temperature liquid in first liquid bath 1 quickly recover to temperature before the test next time; Improve testing efficiency, be preferably 2 first refrigeration modules 9 are set, lay respectively at the both sides of first liquid bath 1; First refrigeration module 9 adopts the semiconductor chilling plate of 30W; The copper heat radiator is housed on the radiating surface of cooling piece, the high rotating speed fan of 12V is housed on the heat radiator, and through the straight barrel type air channel; Heat is discharged fast, and rate of temperature fall can reach 3 ℃/min.
As shown in Figure 2; Grease melting point detector of the present invention also comprises a sample preparation apparatus; Sample preparation apparatus comprises second liquid bath 101, second temperature sensor 103, second refrigeration module 109 and controls the sidepiece that platform 110, the second refrigeration modules 109 are positioned at second liquid bath 101 and be connected with second liquid bath 101, to the liquid refrigerating in second liquid bath 101 to reach the required low temperature of freezing sample; Second temperature sensor 103 is positioned at the inside of second liquid bath 101; Detect the temperature of its internal liquid, control platform 110 and comprise operating key and display module, in order to be provided with and displays temperature.
Use the grease melting point detector to measure the method for grease, during test, the sample kapillary for preparing is fixed on the sample holder 2; Keep grease post one end down; Put into first liquid bath 1 of grease melting point detector, regulate capillary position, make 30mm graticule place under its immersed in liquid level; Regulate camera 5 selected kapillary monitoring locations; Be selected in the upper marginal position near grease post in the kapillary, this moment, the brightness value of monitored area was empty brightness capillaceous as far as possible, and temperature controller 8 setting heating rates are 1 ℃/min then; Starting 4 pairs first liquid baths 1 of heating module heats; Change heating rate into 0.5 ℃/min during near melting temperature, to the sample of unknown fusing point, can be earlier once with higher heating rate bigness scale.In the experimentation, computer acquisition, analyze the brightness value that camera 5 transmits, test that brightness value is empty brightness capillaceous when initial; When the grease post begins upwards to slip into the monitored area, the brightness value of monitoring location can raise and become the brightness of grease post, when reaching the brightness variable quantity of setting; Be that temperature has reached fusing point, numerical value is judged, write down to computing machine automatically, and record and be saved in experimentation in the computing machine; Eliminated the error that artificial judgement produces; Repeat three times, calculate the mean value of three temperature, get this mean value as measuring the result.
The sample that uses during test can adopt the manually operated alternative among the GB/T 24892-2010/ISO 6321:2002 to produce, and also can adopt the sample preparation apparatus in the grease melting point detector of the present invention to produce.
Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. grease melting point detector; Its host machine part is provided with first liquid bath (1), sample holder (2), first temperature sensor (3) and heating module (4); Said first temperature sensor (3) is positioned at the inside of first liquid bath (1), and heating module (4) is arranged on the bottom of first liquid bath (1), and sample holder (2) is positioned at the top of first liquid bath (1); It is characterized in that: host machine part also is provided with camera (5), led light source (6) and computing machine; Said camera (5) is arranged on the top of first liquid bath (1), links to each other with computing machine through data line, and led light source (6) is installed in sample holder (2) next door.
2. grease melting point detector according to claim 1 is characterized in that: host machine part also is provided with temperature controller (8), and said temperature controller (8) links to each other with heating module (4).
3. grease melting point detector according to claim 1 is characterized in that: said first liquid bath (1) inside also is provided with magnetic stirrer (7), and said magnetic stirrer (7) is positioned at distance first liquid bath (1) bottom 2 centimeters.
4. grease melting point detector according to claim 1 is characterized in that: host machine part also is provided with 1～2 first refrigeration module (9), and said first refrigeration module (9) is positioned at the sidepiece of first liquid bath (1).
5. grease melting point detector according to claim 4 is characterized in that: said first refrigeration module (9) adopts the semiconductor chilling plate of 30W, and the copper heat radiator is housed on the radiating surface of cooling piece, and the high rotating speed fan of 12V is housed on the said heat radiator.
6. according to the arbitrary described grease melting point detector of claim 1-5, it is characterized in that: said first liquid bath (1) adopts aluminium sheet to process, and inwall scribbles the Teflon material.
7. according to the arbitrary described grease melting point detector of claim 1-5, it is characterized in that: said heating module (4) adopts the PTC ceramic heating flake of 24V.
8. according to the arbitrary described grease melting point detector of claim 1-5, it is characterized in that: said camera (5) adjustable focal length, highest resolution is more than 1024 * 768dpi, maximum frame number is more than 24FPS.
9. according to the arbitrary described grease melting point detector of claim 1-5; It is characterized in that: also comprise a sample preparation apparatus; Said sample preparation apparatus comprises second liquid bath (101), second temperature sensor (103), second refrigeration module (109) and controls platform (110); The sidepiece that second refrigeration module (109) is positioned at second liquid bath (101) is connected with second liquid bath (101), and second temperature sensor (103) is positioned at the inside of second liquid bath (101).
10. method of using the described grease melting point detector of claim 2 to measure the grease fusing point is characterized in that:
One, the sample kapillary for preparing is fixed on the sample holder (2), keeps grease post one end down, put into first liquid bath (1) of grease melting point detector, regulate capillary position, make 30mm graticule place under its immersed in liquid level;
Two, set camera (5) to monitoring location capillaceous, be selected in the upper marginal position near grease post in the kapillary, this moment, the brightness value of monitored area was empty brightness capillaceous;
Three, the heating rate of design temperature controller (8) is 1 ℃/min, starts heating module (4), experimentizes;
During four, near the grease melting temperature; Change heating rate into 0.5 ℃/min, the brightness value that computer acquisition, analysis camera (5) transmit is when the grease post begins upwards to slip into the monitored area; The brightness value of monitoring location can raise and become the brightness of grease post; When reaching the brightness variable quantity of setting, promptly temperature has reached fusing point, and computing machine is noted temperature value this moment automatically;
Five, repeat three times, calculate the mean value of three temperature, get this mean value as measuring the result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210019085.9A CN102590264B (en) | 2012-01-20 | 2012-01-20 | Grease melting point measuring meter and method for measuring grease melting point by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210019085.9A CN102590264B (en) | 2012-01-20 | 2012-01-20 | Grease melting point measuring meter and method for measuring grease melting point by same |
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| CN102590264A true CN102590264A (en) | 2012-07-18 |
| CN102590264B CN102590264B (en) | 2014-04-09 |
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| CN201210019085.9A Expired - Fee Related CN102590264B (en) | 2012-01-20 | 2012-01-20 | Grease melting point measuring meter and method for measuring grease melting point by same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792252A (en) * | 2014-02-12 | 2014-05-14 | 中华人民共和国张家港出入境检验检疫局 | Oil melting point measurer |
| CN107796842A (en) * | 2016-08-30 | 2018-03-13 | 苏州丰倍生物科技有限公司 | A kind of grease condensation point apparatus for automatically measuring |
| CN108387600A (en) * | 2018-01-23 | 2018-08-10 | 上海佳航仪器仪表有限公司 | A kind of full-automatic grease fusing point test device |
| CN109211427A (en) * | 2018-11-22 | 2019-01-15 | 国衡环境监测有限公司 | A kind of grease heating experimental device and method |
| CN109444207A (en) * | 2018-09-27 | 2019-03-08 | 宁波职业技术学院 | A kind of melting point compound detector and its measuring method |
| CN113155890A (en) * | 2021-04-06 | 2021-07-23 | 华志(福建)电子科技有限公司 | Melting point analyzer based on image recognition |
Citations (3)
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| CN2580436Y (en) * | 2002-11-21 | 2003-10-15 | 上海精密科学仪器有限公司 | Oil bath method detector for meldometer |
| US20040120381A1 (en) * | 2002-12-12 | 2004-06-24 | Rigaku Corporation | Temperature correction method for thermal analysis apparatus and thermal analysis apparatus |
| US20090190626A1 (en) * | 2003-10-09 | 2009-07-30 | University Of Southhampton | Measurement of melting points of multiple samples |
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2012
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| CN2580436Y (en) * | 2002-11-21 | 2003-10-15 | 上海精密科学仪器有限公司 | Oil bath method detector for meldometer |
| US20040120381A1 (en) * | 2002-12-12 | 2004-06-24 | Rigaku Corporation | Temperature correction method for thermal analysis apparatus and thermal analysis apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792252A (en) * | 2014-02-12 | 2014-05-14 | 中华人民共和国张家港出入境检验检疫局 | Oil melting point measurer |
| CN103792252B (en) * | 2014-02-12 | 2015-12-30 | 中华人民共和国张家港出入境检验检疫局 | Grease melting point tester |
| CN107796842A (en) * | 2016-08-30 | 2018-03-13 | 苏州丰倍生物科技有限公司 | A kind of grease condensation point apparatus for automatically measuring |
| CN108387600A (en) * | 2018-01-23 | 2018-08-10 | 上海佳航仪器仪表有限公司 | A kind of full-automatic grease fusing point test device |
| CN109444207A (en) * | 2018-09-27 | 2019-03-08 | 宁波职业技术学院 | A kind of melting point compound detector and its measuring method |
| CN109211427A (en) * | 2018-11-22 | 2019-01-15 | 国衡环境监测有限公司 | A kind of grease heating experimental device and method |
| CN113155890A (en) * | 2021-04-06 | 2021-07-23 | 华志(福建)电子科技有限公司 | Melting point analyzer based on image recognition |
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| CN102590264B (en) | 2014-04-09 |
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