Device and method for detecting and monitoring ingredients or properties of a measurement medium, in particular of physiological blood values
First Claim
1. A device for identifying and monitoring contents or properties of a measurement medium comprisingat least one broadband light source for generating broadband analysis light, [directly acting on a measurement region,]a dispersive optical element for spreading the analysis light according to the wavelength thereof, which analysis light has been returned by at least one measurement point or has passed through the measurement point,a two-dimensional sensor array for recording the spread analysis light, which two-dimensional sensor array is arranged such that light with different wavelengths impinges on different points of the sensor array, and such that the spread analysis light impinges on a plurality of adjacent rows of the two-dimensional sensor array such that the spectrum can simultaneously be captured by a plurality of rows of the two-dimensional sensor array,the device having a housing and being designed as a compact assembly which contains at least the light source, the dispersive optical element and the sensor array, the housing configured to position the light source for directly acting on the measurement region when the housing is aligned with respect to the measurement region anda computer arrangement which adds the sprectra generated by the adjacent rows to improve the signal to noise ratio.
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Accused Products
Abstract
The invention relates to a device for detecting and monitoring ingredients or properties of a measurement medium, for example physiological blood values, wherein said device contains a light source (20) for generating broad-spectrum measurement light (2) and for acting on a measurement area (3), and means (9) for fanning out the analysis light (4) reflected by the measurement area (3). The device also has a sensor array (11) for picking up the fanned light. The sensor array (11), the light source (20) and the means for dispersing the analysis light (4) are arranged as a compact unit in a housing.
15 Citations
33 Claims
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1. A device for identifying and monitoring contents or properties of a measurement medium comprising
at least one broadband light source for generating broadband analysis light, [directly acting on a measurement region,] a dispersive optical element for spreading the analysis light according to the wavelength thereof, which analysis light has been returned by at least one measurement point or has passed through the measurement point, a two-dimensional sensor array for recording the spread analysis light, which two-dimensional sensor array is arranged such that light with different wavelengths impinges on different points of the sensor array, and such that the spread analysis light impinges on a plurality of adjacent rows of the two-dimensional sensor array such that the spectrum can simultaneously be captured by a plurality of rows of the two-dimensional sensor array, the device having a housing and being designed as a compact assembly which contains at least the light source, the dispersive optical element and the sensor array, the housing configured to position the light source for directly acting on the measurement region when the housing is aligned with respect to the measurement region and a computer arrangement which adds the sprectra generated by the adjacent rows to improve the signal to noise ratio.
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25. A method for identifying and monitoring contents or properties of a measurement medium, comprising steps of:
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applying broadband light from a broadband light source directly onto at least the measurement region, capturing analysis light returned in reflection and/or transmission mode, carrying out wave-dependent spreading of the captured analysis light and imaging the individual, wavelength-dependent components of the captured analysis light on a two-dimensional sensor array, for generating a spectrum, wherein the spread analysis light is imaged on a plurality of adjacent rows of the two-dimensional sensor array to capture the spectrum simultaneously by a plurality of rows of the two-dimensional sensor array, evaluating the spectrum generated thus for establishing the contents or properties of the measurement medium, wherein the spectrum generated by the individual rows are added for improvement of signal to noise ratio, wherein a housing is applied, in advance, to a measurement region, which housing contains the light source and the sensor array and positions the light source for directly illuminating the measurement region. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33)
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Specification