Patent US1819798A successfully refreshed from Google Patents.
EP0516367A2
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Method and apparatus for simultaneous differential scanning calorimetry and microdielectrometry
Assignee: Ford-Werke GmbH
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Filing: 1992-05-27
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Granted: —
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Expires: 2012-05-27
Abstract
Abstract A method and apparatus for simultaneous differential scanning calorimetry and microdielectrometry is disclosed. The apparatus includes a sample cell (14) containing a sensor (18,20) for measuring the dielectric and thermal properties of the sample. The method applies a voltage to a material while heating the material over a temperature range and then simultaneously measuring the current gain of the material, the temperature of the material and the energy input to the material.
Inventors
- 👤 Chi Li
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 12:18
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/44; G01N33/442; G01N25/00; G01N25/20; G01N25/48; G01N25/4846; G01N25/4866; G01N27/00; G01N27/02; G01N27/22; G01N27/221; G01R; G01R27/00; G01R27/02; G01R27/26; G01R27/2617; G01R27/2635; G01R27/2658
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
29 words
A device for testing properties of materials comprising: means defining a sample cell(14); means (18,20,24,26,28,38) for simultaneously measuring dielectric and thermal properties of a material in the sample cell.
Claim 2
Independent Claim
29 words
A device for testing properties of materials comprising: means defining a sample cell(14); means (18,20,24,26,28,38) for simultaneously measuring dielectric and thermal properties of a material in the sample cell.
Claim 3
Dependent Claim
20 words
A device according to claim 1, wherein said means for simultaneously measuring includes measuring the heat capacity of the sample.
Claim 4
Dependent Claim
44 words
A device according to claim 1, wherein said means for simultaneously measuring includes measuring the dielectric constant, dielectric loss, glass transition temperature, heat of reaction, heat of crystallisation, heat of reaction, decomposition temperatures, and change in dielectric properties during crystallisation, melting, reaction and decomposition.
Claim 5
Dependent Claim
27 words
A device according to claim 1, further comprising a sensor disposed in said sample cell for sensoring temperature changes in the material disposed in said sample cell.
Claim 6
Dependent Claim
26 words
A device according to claim 1, further comprising means for applying heat to said sample cell and means for measuring energy input to said sample cell.
Claim 7
Dependent Claim
17 words
A device according to claim 1, further comprising means for measuring the temperature of said sample cell.
Claim 8
Dependent Claim
21 words
A device according to claim 1, further comprising means for measuring a current passed through a material in said sample cell.
Claim 9
Dependent Claim
51 words
A device according to claim 1, further comprising: means for measuring the temperature of a material in said sample cell; means for measuring a current passed through the material in said sample cell; means for applying heat to said sample cell; and means for measuring energy input to said sample cell.
Claim 10
Dependent Claim
20 words
A device according to claim 1, further comprising means for applying a voltage to a material in said sample cell.
Claim 11
Dependent Claim
63 words
A sample cell for use in simultaneous microdielectrometry and differential scanning calorimetery measurement, comprising: means for containing a sample therein; means for sensing and transmitting a signal representative of the temperature of the sample; and means for sensing and transmitting a signal representative of dielectric properties of the sample, whereby simultaneous measurement of dielectric and thermal properties of the sample can be determined.
Claim 12
Dependent Claim
63 words
A sample cell for use in simultaneous microdielectrometry and differential scanning calorimetery measurement, comprising: means for containing a sample therein; means for sensing and transmitting a signal representative of the temperature of the sample; and means for sensing and transmitting a signal representative of dielectric properties of the sample, whereby simultaneous measurement of dielectric and thermal properties of the sample can be determined.
Claim 13
Dependent Claim
28 words
A sample cell according to claim 10, wherein said means for sensing and transmitting a signal representative of dielectric properties includes a sensor disposed in said sample cell.
Claim 14
Dependent Claim
44 words
A sample cell according to claim 10, wherein said means for containing includes a base member and a cover member and said means for sensing and transmitting a signal representative of dielectric properties of the sample, includes a sensor disposed in said sample cell.
Claim 15
Dependent Claim
40 words
A sample cell according to claim 12, wherein said means for sensing and transmitting a signal representative of dielectric properties of the sample is disposed on top of the sample or adjacent to said base member or said cover member.
Claim 16
Dependent Claim
33 words
A sample cell according to claim 12, wherein said means for sensing and transmitting a signal representative of dielectric properties of the sample for simultaneous measurement includes a cable attached to said sensor.
Claim 17
Dependent Claim
15 words
A sample cell according to claim 14, wherein said cable is a Kapton ribbon cable.
Claim 18
Independent Claim
45 words
A method for simultaneously measuring the dielectric and thermal properties of a material comprising the steps of: applying a voltage to a material; measuring a current gain of the material; simultaneously measuring the temperature of the material; and simultaneously measuring energy input to the material.
Claim 19
Independent Claim
45 words
A method for simultaneously measuring the dielectric and thermal properties of a material comprising the steps of: applying a voltage to a material; measuring a current gain of the material; simultaneously measuring the temperature of the material; and simultaneously measuring energy input to the material.
Claim 20
Dependent Claim
21 words
A method according to claim 16, wherein said method further comprises the step of: heating the material over a temperature range.
Claim 21
Dependent Claim
28 words
A method according to claim 17, wherein said method further comprises the steps of: repeating the measurements of current gain, temperature and energy input over the temperature range.
References Cited (Backward Citations)
No citation records indexed.
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