Sample table for a food analyzing device
View Patent ↗Disclosed is a sample table for a food analyzing device used for analyzing a food sample. Said sample table includes a sample holder ( 14 ) for receiving the food sample, a means for moving the sample holder ( 14 ), and a housing ( 12 ) that surrounds the moving means. The moving means and the sample holder ( 14 ) are magnetically coupled to each other such that the sample holder ( 14 ) can be moved relative to the housing ( 12 ) outside the housing ( 12 ). Also disclosed is a food analyzing device for spectroscopically analyzing food samples, said device encompassing such a sample table ( 10 ).
1. A sample table for a food analyzing device for analyzing a sample of food, comprising
a housing having a top side,
a sample holder for holding the sample of food, said sample holder being adapted to rotatably slide on the top side of the housing and comprising at least one follower magnet or at least one ferromagnetic sample holder block, and
a movement means for moving the sample holder, said movement means comprising an electric motor and a drive ring, said drive ring being rotatably arranged below the top side of the housing, carrying at least one drive magnet or at least one ferromagnetic material block and being coupled to the electric motor,
wherein the housing surrounds (a) the electric motor, (b) the drive ring and (c) the at least one drive magnet or the at least one ferromagnetic drive ring block, and wherein the movement means and the sample holder are magnetically coupled so that the sample holder outside the housing can be rotated by a magnetic force between the sample holder and the drive ring.
2. The sample table according to claim 1 , wherein the movement means further comprises at least one drive magnet, and the sample holder comprises the at least one follower magnet for interacting with the at least one drive magnet, so that the sample holder can be moved relative to the housing as a result of the interaction of the magnets.
3. The sample table according to claim 1 , wherein the movement means further comprises a displacement unit for displacing the sample holder in translation relative to the housing.
4. The sample table according to claim 1 , wherein the drive ring comprises three high-power magnets.
5. The sample table according to claim 1 , wherein a window for the passage of light is arranged in the housing in such a way that a light beam emerging from the window impinges on the sample of food held in the sample holder.
6. The sample table according to claim 5 , wherein the window is arranged in the housing in such a way that a light beam vertically emerging from the window impinges on the sample of food held in the sample holder.
7. The sample table according to claim 1 , wherein the sample holder is designed to hold a Petri dish.
8. The sample table according to claim 1 , wherein the housing is watertight.
9. The sample table according to claim 1 , wherein the housing is made from non-magnetic material.
10. The sample table according to claim 1 , further comprising a display screen, which is suitable for the passage of electromagnetic radiation, and a transmitter arranged inside the housing for transmitting electromagnetic signals, wherein the transmitter is arranged relative to the display screen in such a way that a transmission of electromagnetic signals from and to the transmitter through the display screen is possible.
11. The sample table according to claim 10 , wherein the display screen comprises a touchscreen.
12. A food analyzing device for a spectroscopic analysis of samples of food, comprising:
a sample table according to claim 1 , which further comprises:
a light source enclosed by the housing and
a window for the passage of light from the light source,
wherein the sample holder is arranged with respect to the window in such a way that, during operation of the food analyzing device, light from the light source impinges on the sample of food held in the sample holder, and
means for analyzing a physical parameter which is characteristic of an interaction of the sample with light from the light source.
13. The food analyzing device according to claim 12 , wherein the means for analyzing a physical parameter is adapted to analyze a wavelength-dependent absorption, and is arranged in the housing.
14. The food analyzing device according to claim 12 , further comprising a mirror for reflecting light from the light source, which has passed through the sample, back into the housing.
15. A food analyzing device for a spectroscopic analysis of samples of food, comprising:
a sample table according to claim 1 , which further comprises:
a light source enclosed by the housing and
a window for the passage of light from the light source,
wherein the sample holder is arranged with respect to the window in such a way that, during operation of the food analyzing device, light from the light source impinges on the sample of food held in the sample holder, and
a spectrometer adapted to analyze a wavelength-dependent absorption of the light from the light source by the sample of food.
16. A sample table for a food analyzing device for analyzing a sample of food, comprising
a housing having a top side,
a sample holder for holding the sample of food, said sample holder being adapted to rotatably slide on the top side of the housing and comprising at least one follower magnet or at least one ferromagnetic sample holder block,
an electric motor, and
a drive ring coupled to the electric motor, rotatably arranged below the top side of the housing, and carrying at least one drive magnet or at least one ferromagnetic material block,
wherein the housing surrounds (a) the electric motor, (b) the drive ring and (c) the at least one drive magnet or the at least one ferromagnetic drive ring block, and wherein the drive ring and the sample holder are magnetically coupled so that the sample holder outside the housing can be rotated by a magnetic force between the sample holder and the drive ring.
17. A food analyzing device for a spectroscopic analysis of samples of food, comprising:
a sample table according to claim 16 , which further comprises a light source enclosed by the housing and a window for the passage of light from the light source, wherein the sample holder is arranged with respect to the window in such a way that, during operation of the food analyzing device, light from the light source impinges on the sample of food held in the sample holder, and
a spectrometer adapted to analyze a wavelength-dependent absorption of the light from the light source by the sample of food.