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Optical sensor module for spectroscopic measurement

A technology of optical sensor and sensor module, applied in spectrometry/spectrophotometry/monochromator, optical radiation measurement, measuring device, etc., can solve problems such as limiting the working range of sensors, and achieve optimal spectral uniformity and cost Favorable and avoid the effect of scattered light

Pending Publication Date: 2020-08-25
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even small deviations in the arrangement of emitters and detectors, as well as in the emission characteristics of the emitters, can already have a negative effect on the spacing dependence of the sensors, so that in high-precision measuring tasks there can be serious Limit the operating range of the sensor

Method used

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  • Optical sensor module for spectroscopic measurement
  • Optical sensor module for spectroscopic measurement
  • Optical sensor module for spectroscopic measurement

Examples

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Embodiment Construction

[0033] Figure 1a An exploded perspective view of a base 1 with a plurality of beam sources 2 and a detector 4 of a sensor module 6 according to a first embodiment of the invention is shown.

[0034] The base 1 is rotationally symmetrical in shape and has six receptacles 8 for receiving each beam source 2 . A receptacle 8 for accommodating a beam source 2 is arranged around a receptacle 10 for accommodating a detector 4 . Furthermore, the receptacle 10 for receiving the detector 4 and the receptacle 8 of the beam source 2 are arranged offset in the emission direction of the beam source 2 .

[0035]According to a first embodiment of the sensor module 6 , the beam source 2 and the detector 4 can be positioned parallel to one another in the base 1 or in the receptacles 8 , 10 of the base 1 .

[0036] In this case, beam source 2 is, for example, an infrared LED with a diameter of 3 mm or 5 mm. The beam source 2 can emit electromagnetic radiation in the wavelength range from 800 ...

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Abstract

The invention relates to an optical sensor module for analyzing a fluid or an object, said module comprising: at least one radiation source for generating electromagnetic radiation of a first wavelength range and for emitting the electromagnetic radiation in the direction of a fluid or object to be examined; at least one detector for receiving radiation reflected on the fluid and for converting the received radiation into electronic measurement signals; at least one base for positioning and for aligning the at least one radiation source and the at least one detector with a printed circuit board; and at least one signal-processing unit for amplifying and for processing the electronic measurement signals of the at least one detector, wherein the at least one radiation source can be positioned on the printed circuit board parallel or at an angle to the at least one detector using the at least one base.

Description

technical field [0001] The invention relates to an optical sensor module for analyzing fluids or objects according to the preamble of claim 1 . Background technique [0002] Optical sensors are already in use in a variety of applications. For example, NDIR (nicht-dispersive Infrarot, non-dispersive infrared) detectors can determine the CO in the ambient air 2 content, or the moisture content of a gas or other material. Such sensors can be used in particular to detect specific material properties and mixture ratios of media (for example gaseous, solid or liquid) and to carry out spectroscopic processing. One of the possible applications of miniaturized optical sensors is to monitor washing process parameters or drying process parameters. [0003] The sensor may, for example, perform reflection measurements. In this method of measurement, the detector and the emitter are usually located on the same side of the measurement section, and the IR radiation generated by the emit...

Claims

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Application Information

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IPC IPC(8): G01J3/02G01J3/42
CPCG01J3/0237G01J3/0278G01J3/0202G01J3/0289G01J3/42G01N21/3577G01N21/3563G01J3/10G01J2003/104G01J3/108G01J3/0256
Inventor B·勒泽纳M·贝德加V·克劳斯
Owner ROBERT BOSCH GMBH
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