Optics modules Technical note
■The optics module is an optical module for absorbance measurement, with a structure including Si photodiodes, optical filters, and I/V conversion circuits. Si photodiodes of multiple channels do detection by dispersing incident light such as light transmitted through a solution. The generated photocurrent is subjected to photoelectric conversion, and signals of various wavelengths are output as analog voltage simultaneously.
■The optics module is a non-dispersive spectroscopic module, with a spectroscopic system that uses optical filters (beam splitters, band-pass filters). The dispersive mini-spectrometer disperses light with a grating, providing an optical spectrum with continuous wavelengths. In contrast, the optics module detects light of up to 10 different discontinuous wavelengths. Optics modules are suitable for applications including blood analysis and water quality analysis, where detection wavelengths are specified, because S/N at the detection wavelengths and the blocking (light-shielding) characteristics of non-detection wavelengths are better than those of the dispersive type.
◆Features
■Simultaneous detection of up to 10 wavelengths (C13398 series)
●The optics module can simultaneously detect up to 10 wavelengths of light. Combining the C13398 series with the evaluation circuit C13390 (sold separately) makes it possible to convert analog signals to digital signals and send the signals of 10 wavelengths to a PC connected by USB simultaneously.
■Flexible customization
●We offer custom support for specifications such as detection wavelength and the number of channels.
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C13398 、 C13398 series 、 C13398-01 、 C13398-02 、 C13390 |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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Mar. 2021 |
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KACC9020E01 |
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1.1 MB |
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