Tablets press with integral NIR measuring device

Details Tablets press with integral NIR measuring device Tablets press with integral NIR measuring device

2007-11-13

2007-11-13

Evans, F. L. (Department: 2877)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S339110, C256S013000, C256S072000

Reexamination Certificate

active

11133830

ABSTRACT:
The tablets press according to the invention comprises an integral measuring device for the determination of the quantitative content of at least one substance in a tablet, comprising: at least one radiation source, which emits radiation in the near infrared range, for the irradiation of the tablet, a radiation receiving device contained in a measuring head, which receives the radiation reflected by the tablet, a spectrometer for receiving the radiation from the radiation receiving device and for supplying an output signal according to the intensity of the received radiation at a number of different wavelengths and a device for the quantitative determination of the content of at least one substance contained in the tablet and/or for the determination of the ratios of all or some of the contained components based on the output signal, wherein the measuring device is suitable for measuring each individual pressed tablet, and the trigger times of the measurements are correlated with the conveying speed of the tablets press.

REFERENCES:
patent: 4893253 (1990-01-01), Lodder
patent: 5442437 (1995-08-01), Davidson
patent: 6064056 (2000-05-01), Doak
patent: 6079968 (2000-06-01), Schmitz et al.
patent: 6919556 (2005-07-01), Laurence
patent: 7057722 (2006-06-01), Gehrlein et al.
patent: 2005/0184435 (2005-08-01), Hinzpeter et al.
patent: 0 887 638 (1997-06-01), None

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