| 摘要 |
A measuring device for emitted, remitted or transmitted light from a measuri ng object is provided having an optical detector for capturing light to be measured, said light being radiated from the measuring object; a spectrometer optically connected with the detector for dispersing the measuring light into its spectral components, sa id measuring light being captured by the detector, said spectrometer including a photo- electric converter for generating respective analog electrical signals from the spectral components of the measuring light; an analog/digital converter for converting the generated analog electrical signals into respective digital measurement data, said analog electrical signals being generated by the photo-electric converter; a digital computer for controllin g the photo-electric converter and the analog/digital converter; a bi-directional interface for connecting the computer with an external computer; and a program for controlling the computer, said program for communicating between the computer and the external computer via the interface, wherein the external computer starts measuring processes and transfers the thus generated digital measurement data to the external computer via the interfac e. The interface is a USB or Fire Wire interface and the power supply to all electrical components of the measuring device is carried out through the interface. Therefore a power supply circuit is provided which is connected to the interface for generating the necessary supply voltage for each of the individual electrical components of the measuring device from the supply voltage being supplied by the external computer via the interface. Th e use of a USB or Fire Wire interface allows the processing of the measurement data to be transferred into the external computer, thus allowing a particularly cost efficient manufacturing of the device so that the device becomes available to a wide range of users.
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