Test system comprising a heating device and method for implementing a test system

1. A test system adapted for conducting tests on content, comprising a heating device that comprises: a test container configured for receiving the content, the test container comprising a rigid hollow body defining an inner space and extending longitudinally along a test container axis between a first end and a second end, the second end being closed, the test container comprising an inner surface defining the inner space and an outer surface opposite the inner surface, a receiving container receiving the test container, the receiving container comprising, in a tubular portion of the receiving container, an inner surface oriented towards the outer surface of the test container and an outer surface opposite the inner surface, the inner surface extending longitudinally, parallel to the test container axis, a coil comprising induction turns configured for heating a magnetic material layer surrounding the test container, in order to heat said content that comprises a mixture of a first and a second product, an intermediate container arranged between the inner surface of the receiving container and the test container, the intermediate container including the magnetic material layer and being configured for receiving the test container, and a source of current suitable configured for supplying current to the induction turns, the test system being wherein the induction turns are fixed to the receiving container and extend helically and concentrically around the tubular portion of the receiving container, and wherein the test system further comprises: an arm which is longitudinally inserted in the inner space through an axial opening of the test container, the arm configured for mixing the content of the test container in the inner space during heating of the content by the induction turns, the inner surface defining the inner space being made of a material chosen amongst glass and aluminium, and a guide mechanism configured for guiding the arm within the inner space of the test container along the test container axis, in a first direction and in a second direction that is opposite the first direction.

2. The test system according to claim 1 , wherein the intermediate container is suitable for being received in the receiving container, wherein the intermediate container comprises an inner surface oriented towards the outer surface of the test container and an outer surface opposite the inner surface and oriented towards the inner surface of the receiving container.

3. The test system according to claim 2 , wherein the intermediate container is made of the magnetic material, the test container being made of aluminium and forming a separating wall between:

a liquid product included in the mixture of the content; and

the magnetic material layer formed by the intermediate container.

4. The test system according to claim 2 , wherein the intermediate container is fixed in the receiving container, and wherein the test container is movable relative to the intermediate container.

5. The test system according to claim 2 , wherein the receiving container comprises a plurality of bosses arranged on the inner face of the receiving container, the plurality of bosses being configured for centering and fixing the intermediate container in the receiving container.

6. A method for implementing a test system according to claim 2 , the method comprising the steps of: filling the test container with content comprising the mixture of the first and the second product, placing the test container inside the intermediate container, which is surrounded by the induction turns, mixing the content of the test container with the arm connected to the guide mechanism, by moving the arm along the direction of the test container axis in the first direction and in the second direction, supplying power to the induction turns so as to create induced currents and heat by induction the intermediate container and thus the content of the test container, the intermediate container being made of the magnetic material, wherein the heating of the content by induction and the mixing of the content take place simultaneously.

7. The method according to claim 6 , further comprising the steps of: releasing the arm from a retention device so that the arm drops into the test container, measuring the time it takes the arm to drop into the test container.

8. The method according to claim 6 , further comprising the steps of:

providing a temperature sensor,

monitoring the temperature of the outer surface of the test container.

9. The method according to claim 6 , comprising the steps of:

providing a force sensor,

measuring a thrust, penetration, and/or retention force exerted by the arm when mixing the content of the test container with the arm and/or after release of the arm by the retention device.

10. The method according to claim 6 , wherein the test container, which is aluminium, is in contact with a liquid product only at the inner surface of the test container, the outer surface of the test container being surrounded by the magnetic material of the intermediate container, the receiving container extending annularly to form a tubular wall radially interposed between the induction turns and the intermediate container.

11. The test system according to claim 1 , wherein the test container has an insulating handle, wherein the insulating handle is arranged at the first end of the test container.

12. The test system according to claim 1 , wherein the receiving container comprises a continuous helical groove extending over the outer surface, and wherein the induction turns of the coil are accommodated in the groove.

13. The test system according to claim 1 , wherein the test container comprises an aluminum material.

14. The test system according to claim 1 , wherein the arm extends longitudinally along an arm axis between a first end and a second end, the first end being suitable for being arranged in the inner space of the test container, the second end being suitable for being retained outside the inner space of the test container.

15. The test system according to claim 1 , wherein the first end of the test container defines a filling opening, and wherein the second end has a draining opening closed by a cap.

16. The test system according to claim 15 , wherein the guide mechanism is arranged facing the filling opening and comprises a releasable retention device for the arm, wherein the retention device comprises an electromagnet or a suction cup, and wherein the arm comprises a magnetic element.

17. The test system according to claim 16 , further comprising a force sensor configured for measuring a thrust, penetration, or retention force of the arm, wherein: the electromagnet is fixed to the force sensor.

18. The test system according to claim 16 , wherein the magnetic element is fixed to the second end of the arm.

19. The test system according to claim 1 , further comprising a temperature sensor configured for measuring the temperature of the content of the test container, and wherein the temperature sensor comprises at least one infrared sensor.

20. A test system configured for conducting tests on content, the test system comprising a heating device that comprises: a test container configured for receiving the content, the test container comprising a rigid hollow body defining an inner space and extending longitudinally along a test container axis between a first end and a second end, the second end being closed, the test container comprising an inner surface defining the inner space and an outer surface opposite the inner surface; a receiving container comprising an inner surface oriented towards the outer surface of the test container and an outer surface opposite the inner surface; an intermediate container directly encircling the test container and arranged between the receiving container and the test container; a coil comprising induction turns configured for heating said content that comprises a mixture of a first and a second product via the intermediate container; and a source of current configured for supplying current to the induction turns; wherein: the induction turns are fixed to the receiving container and extend helically and concentrically around the receiving container; the test system further comprises: an arm configured for mixing the content of the test container; and a guide mechanism configured for guiding the arm within the inner space of the test container along the test container axis, in a first direction and in a second direction that is opposite the first direction; the intermediate container is directly received in the receiving container, the intermediate container comprising an inner surface oriented towards the outer surface of the test container and an outer surface opposite the inner surface and oriented towards the inner surface of the receiving container; and in a test configuration, the test container is in contact with a liquid product only at the inner surface of the test container, the outer surface of the test container being surrounded by magnetic material of the intermediate container received in the receiving container.