CN200982956Y - Freezing point automatic tester - Google Patents
Freezing point automatic tester Download PDFInfo
- Publication number
- CN200982956Y CN200982956Y CN 200620129631 CN200620129631U CN200982956Y CN 200982956 Y CN200982956 Y CN 200982956Y CN 200620129631 CN200620129631 CN 200620129631 CN 200620129631 U CN200620129631 U CN 200620129631U CN 200982956 Y CN200982956 Y CN 200982956Y
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- CN
- China
- Prior art keywords
- analyzer
- sample
- resistive element
- point
- coagulating
- 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.)
- Expired - Fee Related
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
An automatic coagulating point analyzer relates to a thermal analyzer, which is characterized in that an automatic testing system comprises a micro platinum resistive element in the shape of a stick and a multiple-point no-paper recorder which is connected with the micro platinum resistive element, the platinum resistive element measures coagulating points by the means of directly touching the sample in the tube when analyzing. Because the analyzer can have the temperature variation curve of the sample and the coagulating point of the sample at the same time, and the information stored in the disk is connected with a microcomputer, the analyzer has the advantages of adjusting the optimum production condition, analyzing a plurality of samples at the same time, replacing handwork to analyze dangerous articles which are poisonous or easy to combust and explode, and reducing the toxicant degree to the operator.
Description
Technical field
The utility model relates to a kind of thermal analyzer table, is used for the kryoscopy of material.
Background technology
Kryoscopy always is a manual method.Manual method is simple to operate, precision is also high.But the occasion for measuring a plurality of samples in poisonous, inflammable and explosive dangerous material and the production simultaneously all needs a kind of solidifying point automatic analyzer.Yet up to this point, do not see this analytical instrument on the market yet.
Summary of the invention
The present utility model a kind of solidifying point automatic analyzer, it is characterized in that: with miniature bar-shaped platinum resistance is temperature-sensing element, is connected with the multiple spot recording instrument without paper, forms Auto-Test System.During mensuration direct insertion of platinum resistance element is equipped with in the test tube that melts sample, at normal temperatures, sample is lowered the temperature gradually, when sample begins to solidify, produce themopositive reaction, specimen temperature is gone up, and then peak, and the temperature when keeping a period of time constant is the solidifying point of this sample.Platinum resistance can directly be exported along with specimen temperature changes and the resistance signal of variation in the mensuration, also can convert MV output to.In the signal input multiple spot recording instrument without paper, just can show warm varied curve and solidifying point numerical value simultaneously; This information storage is connected in disk and with microcomputer, to regulate best production status.This instrument can also be measured a plurality of samples simultaneously.
The beneficial effects of the utility model are: measure solidifying point automatically, and measure a plurality of samples simultaneously; Be connected with microcomputer, be beneficial to the adjusting optimum condition; Replace the manual poisonous or inflammable and explosive dangerous material of analyzing, to reduce murder by poisoning to the operator.
Description of drawings
Among the figure: 1, the detection system of heating, 2, automatic control shows, 3, record.
Embodiment
Glass test tube is φ 5～40 * 50～200mm; Miniature platinum resistance element resistance in the time of 0 ℃ is 1000 Ω, and its pillar is that stainless steel or the glass of φ 3～10mm is made, and can the lower end be stainless steel also, and the upper end is a pottery, uses the inorganic adhesive sealing-in again.After multiple spot recording instrument without paper energized, the LCDs of registering instrument shows multi-point signal immediately; When measuring solidifying point, earlier with after the sample 2-20g heat fused, pour in the glass test tube, insert the platinum resistance element again, normal temperature is measured down automatically.
Measure example: get industrial stearic acid, carry out 10 times and repeat kryoscopy, the result is as follows:
53.98,53.96,53.89,53.88,53.92,53.91,53.91,53.89,53.88,53.88,53.90 ℃ of mean values, to measure this sample solidifying point also be 53.90 ℃ to method by hand, this result shows: it is good that this instrument is measured precision, and identical with the manual method measured result.
Claims (2)
1, a kind of solidifying point automatic analyzer is characterized in that: a kind of miniature bar-shaped platinum resistance element is connected with the multiple spot recording instrument without paper, forms Auto-Test System.
2, automatic analyzer according to claim 1 is characterized in that miniature bar-shaped platinum resistance, and the resistance in the time of 0 ℃ is 1000 Ω, pillar is that stainless steel or the glass of φ 3～10mm is made, can the lower end be stainless steel also, the upper end be a pottery, uses the inorganic adhesive sealing-in again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620129631 CN200982956Y (en) | 2006-07-24 | 2006-07-24 | Freezing point automatic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620129631 CN200982956Y (en) | 2006-07-24 | 2006-07-24 | Freezing point automatic tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982956Y true CN200982956Y (en) | 2007-11-28 |
Family
ID=38910113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620129631 Expired - Fee Related CN200982956Y (en) | 2006-07-24 | 2006-07-24 | Freezing point automatic tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982956Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339148B (en) * | 2008-08-14 | 2010-11-17 | 陕西师范大学 | Coagulating point determinator and its determination method |
| CN102507658A (en) * | 2011-11-18 | 2012-06-20 | 河海大学 | Method for measuring concrete vibrating time in real-time |
-
2006
- 2006-07-24 CN CN 200620129631 patent/CN200982956Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339148B (en) * | 2008-08-14 | 2010-11-17 | 陕西师范大学 | Coagulating point determinator and its determination method |
| CN102507658A (en) * | 2011-11-18 | 2012-06-20 | 河海大学 | Method for measuring concrete vibrating time in real-time |
| CN102507658B (en) * | 2011-11-18 | 2013-09-25 | 河海大学 | Method for measuring concrete vibrating time in real-time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20110724 |