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US 2003/0155511 A1Published application
Method and apparatus for identifying plastic
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTakao Hisazumi, Teruo Gotoh, Shouichi Irie
Life of this patent
Estimating the term…
Abstract
A method for distinguishing a kind of plastic materials, by preparing a test piece of a plastic material; measuring an infrared spectrum of the test piece by attenuated total reflection spectroscopy; and comparing the obtained infrared spectrum with an infrared spectrum of a known plastic. The test piece has a section. The infrared spectrum of the test piece is measured by bringing the crystal for attenuated total reflection spectroscopy into contact with the section of the test piece.
Claims26
A method for distinguishing plastics, comprising:
- preparing a test piece of a plastic material;
- measuring an infrared spectrum of the test piece by attenuated total reflection spectroscopy;
- and
- comparing the obtained infrared spectrum with an infrared spectrum of a known plastic, thereby distinguishing a kind of plastic materials,
- wherein the test piece has a section and the infrared spectrum of the test piece is measured by bringing a crystal for attenuated total reflection spectroscopy into contact with the section of the test piece.
2 more elements
An apparatus for distinguishing plastics, comprising:
- a measurement part for measuring an infrared spectrum of a test piece of a plastic material by attenuated total reflection spectroscopy, the measurement part comprising a crystal for attenuated total reflection spectroscopy and an infrared spectrometer,
- a holding part for holding the test piece in a state in which the test piece is brought into contact with the crystal, and
- a distinguishing part for comparing the infrared spectrum of the test piece with an infrared spectrum of a known plastic,
- wherein the holding part holds the test piece having a section in a state in which this section is brought into contact with the crystal.
1 more element
A method for distinguishing plastics, comprising:
- preparing a test piece of a plastic material, measuring an infrared spectrum of the test piece by attenuated total reflection spectroscopy, and comparing the obtained infrared spectrum with an infrared spectrum of a known plastic, thereby distinguishing a kind of plastic material,
- wherein the infrared spectrum of the test piece is measured by applying pressure to the surface of the test piece, forming a concave portion on the surface of the test piece applied pressure and bringing the concave portion into contact with the crystal for attenuated total reflection spectroscopy.
An apparatus for distinguishing plastics, comprising:
- a processing part for forming a concave portion on a surface of a test piece of a plastic material by applying pressure to the surface of the test piece;
- a measurement part for measuring an infrared spectrum of the test piece by attenuated total reflection spectroscopy, the measurement part comprising a crystal for attenuated total reflection spectroscopy and an infrared spectrometer,
- a holding part for holding the test piece in a state in which the test piece is brought into contact with the crystal, and
- a distinguishing part for comparing the infrared spectrum of the test piece and an infrared spectrum of a known plastic,
- wherein the holding part holds the test piece in a state in which the crystal is brought into contact with the concave portion formed in the processing portion.
2 more elements
A method for distinguishing plastics, comprising:
- preparing a test piece of a plastic material, measuring an infrared spectrum of the test piece by attenuated total reflection spectroscopy, and comparing the obtained infrared spectrum with an infrared spectrum of a known plastic, thereby distinguishing a kind of plastic material,
- wherein the infrared spectrum of the test piece is measured in a state in which a crystal for attenuated total reflection spectroscopy is brought into contact with the test piece, and a concave portion is formed in a part of the test piece in contact with the crystal by the contact pressure between the test piece and the crystal.
An apparatus for distinguishing plastics, comprising:
- a measurement part for measuring an infrared spectrum of a test piece of a plastic material by attenuated total reflection spectroscopy, the measurement part comprising a crystal for attenuated total reflection spectroscopy and an infrared spectrometer,
- a holding part for holding the test piece in a state in which the test piece is brought into contact with the crystal,
- a contact pressure control part for controlling the contact pressure between the test piece and the crystal, and
- a distinguishing part for comparing the infrared spectrum of the test piece with an infrared spectrum of a known plastic,
- wherein the contact pressure control part controls the contact pressure between the test piece and the crystal to be such a pressure that a concave portion is formed in a part of the test piece being in contact with the crystal.
2 more elements
Dependencies are inferred from the claim text.