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optical sensor

A kind of technology of optical sensor, sensor, applied in the field of optical sensor

Active Publication Date: 2021-05-25
ENDRESSHAUSER CONDUCTA GMBHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this problem often occurs with other optical measurements and e.g. scattered light or absorption measurements

Method used

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Examples

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Embodiment Construction

[0034] The claimed sensor is generally indicated with reference numeral 3 and is shown schematically at image 3 middle.

[0035] Hereinafter, in the first exemplary embodiment, only differences from the prior art described above will be discussed. The sensor 3 is basically suitable for determining the oil-in-water content of the medium 5 .

[0036] The light source 1 emits emission light 8 in the direction of the medium 5 . The light source is a UV light source emitting light with a wavelength of 200-400 nm. The emitted light 8 is incident on the prism 6 at an angle β1. Prism 6 is a rectangular prism. The base points to the medium to be tested. A first optical path O1 is created from the light source 1 to the prism 6 . Optical path O1 may also contain one or more lenses L1 or filters F1 (see below).

[0037] The emitted light 8 is partially converted into received light 9 in the medium 5 by fluorescence. The received light 9 enters a path in the direction of the recei...

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Abstract

The invention relates to an optical sensor formed as a measured value for determining a measurement parameter of process automation technology in a medium, comprising: at least one light source for emitting emitted light; a prism; and at least one for receiving received light A receiver, wherein a received signal can be generated from the converted received light, and wherein a measured value can be determined from the received signal; wherein at least a first optical path to the medium is produced via a light source and a prism, wherein at least a light path from the medium to the receiving medium is produced via a prism The second optical path of the device, wherein, in doing so, the emitted light passes through the prism, the emitted light is converted into received light within the medium, and the received light passes through the prism, and wherein the first optical path and the second optical path are substantially parallel to each other .

Description

technical field [0001] The invention relates to an optical sensor which is designed for determining measured values ​​of process automation measurement parameters in a medium. Background technique [0002] The sensors are eg fluorescent sensors. The problem on which this patent application is based will now be discussed in terms of fluorescence measurements. To measure fluorescence, the medium is typically illuminated with short-wavelength excitation light and the longer-wavelength fluorescence produced by the medium is detected. Fluorescence measurements are usually arranged as figure 1 as described. [0003] To this end, the fluorescence sensor 3 comprises a light source 1 and a receiver 2 . The light source 1 emits emitted light, and the receiver 2 receives received light. Since the fluorescence radiates in all directions, the beam paths of emitted light and received light can in principle be arranged at any angle α relative to one another. An angle of 0° is not sui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64G01N21/01
CPCG01N21/01G01N21/6402G01N21/51G01N21/645G01N33/2847G01N2021/4752G01N2021/6463G02B5/283G01N21/49G01N21/59
Inventor 拉尔夫·伯恩哈特
Owner ENDRESSHAUSER CONDUCTA GMBHCO