A third model offers a wide 200 - 1000 nm spectral range with better than 2 nm accuracy. Two are sub-nanometer accuracy models that provide detection in the 350 - 700 nm or 500 - 1000 nm range. Thorlabs' fiber-based, compact, Czerny-Turner CCD spectrometers are available in three models. Round-to-Linear Fiber Bundles Optimized for Spectrometer Use Available Separately Below.Cosine Correctors Available Separately Allow Free-Space Input.Trigger Input for External Synchronization (TTL).High-Speed USB Connection Allows up to 200 Scans per Second.Amplitude Corrected and Shipped with Calibration Report.Auto Compensation for Dark Current Noise.Rugged Czerny-Turner Spectrometer Design with No Moving Parts.Models for the Visible, NIR, or UV to NIR Spectral Ranges.See the Specs tab for details about the included cables.
#Spectrophotometer artifact meaning Patch
Note: These specifications are valid only when the spectrometer is used with the included fiber patch cable. Features in the UV may still be visible with the use of a bandpass or shortpass filter to prevent saturation at longer wavelengths. A large difference in the relative response of the system from the UV to the visible inhibits reliable power readings in the UV when performing broadband measurements.
See Beam-hardening artefact, Edge artefact, Mosaic artefact, Ring artefact. artifact Artefact A structure not normally present, but produced by some external action something artificial the distortion of a substance or signal, which interferes with or obscures the interpretation of a study, or a structure that is not representative of a specimen's in vivo state, or which does not reflect the original sample, but rather the result of an isolation procedure, its handling or other factors artifacts in electronic readout devices–eg, EEG, EKG, and EMG, may be due to loose leads or electrical contacts Cardiac pacing An electrical impulse of noncardiac origin which is recorded as a vertical spike on an EKG or other ECG monitor–eg a pacemaker pulse electrical signals from muscle contractions, or myopotentials, are called muscle artifacts Imaging The artifact seen depends on the procedure–eg, barium enema, where zones of inconstant segmental contractions of the colon may be confused with organic constrictions or anatomic variations, due to mucosal or intramural tumors, or a metal surgical clip that obscures an anatomical structure. For example, in a barium enema, where zones of inconstant segmental contractions of the colon may be confused with organic constrictions or anatomic variations due to mucosal or intramural tumours, or a metal surgical clip that obscures an anatomical structure. The artefact seen depends on the procedure. Artefacts in electronic readout devices (e.g., EEG, EKG, and EMG) may be due to loose leads or electrical contacts.Īn electrical impulse of noncardiac origin which is recorded as a vertical spike on an EKG or other ECG monitor (e.g., a pacemaker pulse) electrical signals from muscle contractions, or myopotentials, are called muscle artefacts.Īny change in tissue that occurs during tissue processing which may alter a tissue’s appearance and possibly the diagnosis. (2) The distortion of a substance or signal which interferes with or obscures the interpretation of a study, or a structure that is not representative of a specimen’s in vivo state, or which does not reflect the original sample, but rather is the result of an isolation procedure, its handling or other factors. artefact (1) A structure not normally present, but produced by some external action something artificial. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company.
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