Optical probe with sensor made of optical polymer
First Claim
1. An ATR spectrometer employing visible light and containing an optical probe having a sensor for visible light and a feed line and an exit line for light, wherein the sensor comprises at least one fiber consisting of a transparent optical polymer, the polymer being selected from the group consisting of polymethyl methacrylate, polycarbonates, polystyrenes, polyolefins, polyesters, polysulfones, polyether sulfones, polyether imides, polyarylates, polyamides, polyester carbonates, copolymers consisting of methyl methacrylate and n-pentafluoropropyl methacrylate or polymer blends of polymethyl methacrylate/polyvinylidene fluoride, or a combination thereof, and in which the light is guided in an angular range of from 0°
- to 40°
with respect to the axis of the fiber.
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Abstract
The invention relates to an ATR spectrometer, containing an optical probe having a sensor made of transparent material and a feed line and an exit line for light, wherein the sensor contains an optical polymer or a mixture of different optical polymers. The probe of the spectrometer according to the invention essentially has the advantages that it is inexpensive and extremely flexible, and that it can be matched to the concentration range of the solution to be examined, which makes it possible to fill the gaps in terms of measurable concentrations between conventional transmission spectroscopy and prior ATR spectroscopy.
18 Citations
9 Claims
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1. An ATR spectrometer employing visible light and containing an optical probe having a sensor for visible light and a feed line and an exit line for light, wherein the sensor comprises at least one fiber consisting of a transparent optical polymer, the polymer being selected from the group consisting of polymethyl methacrylate, polycarbonates, polystyrenes, polyolefins, polyesters, polysulfones, polyether sulfones, polyether imides, polyarylates, polyamides, polyester carbonates, copolymers consisting of methyl methacrylate and n-pentafluoropropyl methacrylate or polymer blends of polymethyl methacrylate/polyvinylidene fluoride, or a combination thereof, and in which the light is guided in an angular range of from 0°
- to 40°
with respect to the axis of the fiber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- to 40°
Specification