Dryer with monitoring device
First Claim
1. A dryer for drying a material comprising a monitoring device, wherein the monitoring device includes a means for sensing a physical parameter at a sensing locus within the dryer, the means comprising an optical sensing fiber having at least one fiber Bragg grating to directly react to actionable physical parameters, the monitoring device also including means to control drying parameters, and wherein the at least one fiber Bragg grating is positioned at the sensing locus such that the monitoring device allows for a precise control of the drying process of the material therein.
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Abstract
The invention provides a monitoring device (32) for a dryer (10) includes a means for sensing a physical parameter, such as temperature or strain, at a sensing locus within the dryer (10), for example at a vial (20). The sensing means comprises an optical sensing fiber (38) having at least one fiber Bragg grating (54). Moreover, the invention provides a dryer, in particular a freeze dryer (10), which is equipped with such monitoring device (32).
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Citations
16 Claims
- 1. A dryer for drying a material comprising a monitoring device, wherein the monitoring device includes a means for sensing a physical parameter at a sensing locus within the dryer, the means comprising an optical sensing fiber having at least one fiber Bragg grating to directly react to actionable physical parameters, the monitoring device also including means to control drying parameters, and wherein the at least one fiber Bragg grating is positioned at the sensing locus such that the monitoring device allows for a precise control of the drying process of the material therein.
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14. A method for drying a material comprising the steps of using a freeze dryer comprising a monitoring device, wherein the monitoring device includes a means for sensing a physical parameter at a sensing locus within the dryer, the means comprising an optical sensing fiber having at least one fiber Bragg grating to directly react to actionable physical parameters, the monitoring device also including means to control drying parameters, and wherein the at least one fiber Bragg grating is positioned at the sensing locus such that the monitoring device allows for a precise control of the drying process of the material therein.
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15. A dryer for drying a material comprising a monitoring device, wherein the monitoring device includes a means for sensing a physical parameter at a sensing locus within the dryer, the means comprising an optical sensing fiber having at least one fiber Bragg grating and wherein the at least one fiber Bragg grating is positioned at the sensing locus and, wherein the sensing fiber is a Draw Tower Grating (DTG) fiber.
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16. A monitoring device for use with a dryer, wherein the monitoring device includes a means for sensing a physical parameter at a sensing locus within the dryer, the means comprising an optical sensing fiber having at least one fiber Bragg grating to directly react to actionable physical parameters such that the monitoring device allows for a precise control of the drying process of the material in the dryer.
Specification