A MEASUREMENT MECHANISM

Abstract

A measurement assembly having a body, a vacuum chamber located on the body and in which the measurement process is carried out is disclosed. A first sample and a second sample that are placed in the vacuum chamber contact each other and between which a heat transfer occurs; a piston that provides the first sample and the second sample to continuously contact each other; a cooler located below the first sample and the second sample; and a heater located above the first sample and the second sample is also disclosed.

Claims

1. A measurement mechanism (1) comprising a body (2); a vacuum chamber (3) located on the body (2) and in which the measurement process is carried out; a first sample (4) and a second sample (5) which are placed in the vacuum chamber (3), contact each other and between which a heat transfer occurs; a piston (6) which provides the first sample (4) and the second sample (5) to continuously contact each other; a cooler (7) located below the first sample (4) and the second sample (5); and a heater (8) located above the first sample (4) and the second sample (5), characterized by a heat flux converter (9) which fully covers the first sample (4) and the second sample (5) to measure the thermal contact resistance thereof, wherein the samples have a surface comprising carbon fibre and/or aluminium material, said first sample (4) and/or second sample (5) have a honeycomb form and said heat flux converter (9) having an elastic form so that the samples and the heat flux converter (9) fully contact.

2-4. (canceled)

5. A measurement assembly (1) according to claim 1, characterized by a plurality of measurement points (10) located on the heat flux converter (9), and a control unit (11) for comparing the information received from the measurement points (10).

6. The measurement assembly (1) according to claim 5, characterized by a control unit (11) for measuring a surface area of the first sample (4) and/or the second sample (5) according to the information received from the measurement points (10).

7. (canceled)

Description

[0016] The measurement mechanism aimed to achieve the object of the present invention is illustrated in the attached figures, in which:

[0017] FIG. 1 is a perspective view of a measurement mechanism.

[0018] FIG. 2 is a perspective view of the first sample, the second sample, the heat flux converter, the measurement point and the conductivity sensor.

[0019] All the parts illustrated in figures are individually assigned a reference numeral and the corresponding terms of these numbers are listed below. [0020] 1—Measurement mechanism [0021] 2—Body [0022] 3—Vacuum chamber [0023] 4—First sample [0024] 5—Second sample [0025] 6—Piston [0026] 7—Cooler [0027] 8—Heater [0028] 9—Heat flux converter [0029] 10—Measurement point [0030] 11—Control unit [0031] 12—Conductivity sensor

[0032] The measurement assembly (1) comprises a body (2); a vacuum chamber (3) located on the body (2) and in which the measurement process is carried out; a first sample (4) and a second sample (5) which are placed in the vacuum chamber (3), contact each other and between which a heat transfer occurs; a piston (6) which provides the first sample (4) and the second sample (5) to continuously contact each other; a cooler (7) located below the first sample (4) and the second sample (5); and a heater (8) located above the first sample (4) and the second sample (5). Thanks to the vacuum chamber (3), there is created a test assembly which is independent from the outer environment conditions. A heat flow is generated between the heater (8) and the cooler (7), thus measuring the thermal contact resistances of the samples (4, 5).

[0033] The measurement assembly (1) of the invention comprises a heat flux converter (9) which is located to fully cover the first sample (4) and/or the second sample (5), which have a surface comprising carbon fibre and/or aluminium material, to measure the thermal contact resistance thereof. Due to the fact that the heat flux converter (9) fully covers the first sample (4) and the second sample (5), thermal contact resistances of the samples (4, 5) which are made of strong materials such as carbon fibre or aluminium are able to be measured.

[0034] In an embodiment of the invention, the measurement assembly (1) comprises a heat flux converter (9) for measuring the thermal contact resistance of the first sample (4) and/or the second sample (5) having a non-homogenous surface form. The heat flux converter (9) spreads homogenously over the sample. Therefore, it is provided that the thermal contact resistance of the samples (4, 5) having different forms and shapes is measured.

[0035] In an embodiment of the invention, the measurement assembly (1) comprises a heat flux converter (9) for measuring the thermal contact resistance of the first sample (4) and/or the second sample (5) having a honeycomb form. The heat flux converter (9) can provide various measurements at different areas. Therefore, the thermal contact resistance of the samples (4, 5) having honeycomb form can be measured.

[0036] In an embodiment of the invention, the measurement assembly (1) comprises a heat flux converter (9) having an elastic form. Due to the fact that the heat flux converter (9) has an elastic form, it is provided that the heat flux converter takes the shape of the samples (4, 5). Therefore, the sample and the heat flux converter (9) fully contact and the accurate thermal contact resistance can be measured.

[0037] In an embodiment of the invention, the measurement assembly (1) comprises a plurality of measurement points (10) located on the heat flux converter (9), and a control unit (11) for comparing the information received from the measurement points (10). The thermal contact resistance is measured via the measurement points (10), samples (4, 5). The thermal contact resistance data measured are transferred to the control unit (11). These are compared with the data, which are predefined on the control unit (11) by the manufacturer, to determine thermal contact data.

[0038] In an embodiment of the invention, the measurement assembly (1) comprises a control unit (11) for measuring a surface area of the first sample (4) and/or the second sample (5) according to the information received from the measurement points (10). Due to the fact that the thermal contact data received from the measurement points (10) are transferred to the control unit (11), surface area of the samples (4, 5) is able to be determined. Therefore, sample size is determined and a user is informed.

[0039] In an embodiment of the invention, the measurement assembly (1) comprises a conductivity sensor (12) which is located between the heat flux converter (9) and the first sample (4) and/or the second sample (5) and contacts the first sample (4) and/or the second sample (5), and a control unit (11) for determining material type of the first sample (4) and/or the second sample (5) according to the information received from the conductivity sensor (12). Conductivity data received from the conductivity sensor (12) are compared with the conductivity data, which are predefined on the control unit (11) by the manufacturer, to determine material type of the sample.

[0040] The invention relates to a measurement assembly (1) comprising a heat flux converter (9) which provides measuring a thermal contact resistance by covering the samples (4, 5) so that there is no gap in between. Therefore, it is provided that the measurement accuracy for the thermal contact resistance of the samples (4, 5) is improved.