ASSEMBLY OF XRD/XRF SAMPLE CELLS
Sample cell assemblies containing and holding powdered, granular, paste, or liquid samples are assembled and manufactured in a way that allows them to be inexpensive enough to be disposable and configured to be attached to a fork member for providing shaking or vibrating movement to the samples for X-ray Diffraction and X-ray Fluorescence testing. The sample cell assemblies include the usage of double-sided adhesive films and spacer for sealing the component of the sample cell assemblies, and latches as locking means for locking and unlocking the cell assemblies.
1 . A sample cell assembly for containing and holding powdered, granular, paste or liquid samples for X-ray analysis of the samples, the sample cell assembly is configured to be attached to a fork member for providing shaking or vibrating movement to the samples, the sample cell assembly comprises, a cell top configured to form the top enclosing part of the cell assembly, a cell bottom configured to form the bottom enclosing part of the cell assembly, a spacer configured for providing a space for containing samples, wherein both sides of the spacer having adhesive material to form a seal with the cell top and bottom, and,
wherein there is at least one opening on the cell top and/or the cell bottom, the opening is covered with a film made of plastic material attached to the cell top or bottom to allow X-ray and responding energy to go through.
2 . The sample cell assembly of claim 1 , in which the cell top and cell bottom are fabricated by a plastic molding process.
3 . The sample cell assembly of claim 1 , in which the spacer is laser or die cut from double sided tape.
4 . The sample cell assembly of claim 1 , in which the film is stretched and heat sealed onto the corresponding plastic cell top or bottom.
5 . The sample cell assembly of claim 1 , in which the film is formed as an integral part of the cell top or bottom using a hot embossing technique.
6 . The sample cell assembly of claim 1 , in which the sample cell assembly is used for XRD testing.
7 . The sample cell assembly of claim 1 , in which the sample cell assembly is used for XRF testing
8 . The sample cell assembly of claim 6 , in which the plastic material is polyester.
9 . The sample cell assembly of claim 7 , in which the plastic material is polypropylene.
10 . The sample cell assembly of claim 1 further comprises a latch like locking member configured to have a locked and unlocked position, locking the cell top and the cell bottom when it is at the locked position.
11 . The sample cell assembly of claim 10 , wherein the locking member including at least one pressure-fit latch.
12 . The sample cell assembly of claim 10 , wherein the locking member having a root portion of the latch to be molded directly onto one of the cell top or the cell bottom, where a tip portion of the latch is configured to be latched onto the cell bottom or cell top, correspondingly.
13 . The sample cell assembly of claim 1 , wherein the cell bottom having an opening for loading and/or unloading samples.
14 . A balanced mechanical resonator assembly holding sample cells for XRD/XRF analysis, the resonator assembly comprising,
at least two sample cells, with at least one used to hold samples for XRF analysis, and at least one cell used to hold samples for XRD analysis,
a fork member having at least two fork tines, each of which holding one of the sample cell to provide shaking or vibrating movement to the samples,
a seal member encircling the fork member and all the cells for keeping ambient air out and purging sample cells with other gasses,
an encasing member that functions as a printed circuit board for electric functions servicing the XRD/XRF analysis.
15 . The mechanical resonator assembly of claim 14 , wherein each of the sample cells further comprising a cell top configured to form the top enclosing part of the cell assembly, a cell bottom configured to form the bottom enclosing part of the cell assembly, a spacer configured for providing a space for containing samples, wherein both sides of the spacer having adhesive material to form a seal with the cell top and bottom, and,
wherein there is at least one opening on the cell top and/or the cell bottom, the opening is covered with a film made of plastic material attached to the cell top or bottom to allow X-ray and responding energy to go through.
16 . The mechanical resonator assembly of claim 14 , in which the cell top and cell bottom are fabricated by a plastic molding process.
17 . The mechanical resonator assembly of claim 14 , in which the film is stretched and heat sealed onto the corresponding plastic cell top or bottom.
18 . The mechanical resonator assembly of claim 14 further comprises a latch like locking member configured to have a locked and unlocked position, locking the cell top and the cell bottom when it is at the locked position.
19 . A hot embossing machinery assembly for creating sample cell top or bottom of claim 1 with integral films, the hot embossing machinery assembly comprises
a pressing member,
a heated top die,
a heated bottom die,
a plastic material to be formed into the cell top or bottom is filled in and pressed between the heated top die and the heated bottom die, wherein the plastic material becomes a thin layer of viscous fluid when pressed,
a universal joint or pad which is coupled with the pressing member and the heated top die, transferring force from the pressing member to the top die while allowing the top die the freedom of movement to tilt around the joint when it experiences a torque force from the pressure of the viscous fluid that aligns the heated top die to be substantially parallel to the heated bottom die so that the plastic material becomes a film with even a thin, even thickness.
20 . The hot embossing machinery assembly of claim 11 , in which the pressing member is a hydraulic press.
21 . The hot embossing machinery assembly of claim 11 , in which the pressing member is a pneumatic press.
22 . The hot embossing machinery assembly of claim 11 , in which the universal joint is a ball-bearing type joint.