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  • Polarization Measurement Analyzer Alignment and Contrast
    Measuring performance of a polarizer requires care and. attention to detail if precision is desired, particularly when. measuring high-contrast polarizers. This paper discusses. the impact of polarizer-analyzer alignment and contrast of. the analyzer on measurement error when measuring. polarizer
  • The Importance of Spatial Resolution in IR Thermography Temperature Measurement - Three Brief Case Studies
    Many modern IR cameras have built-in cross-hairs that show the user the size of the spot being measured. One would think this would solve the problem of measurement error due to a target at too great a distance for its size and IR camera resolution. But in our haste as thermographers under pressure
  • Measuring Surface Slope Error on Precision Aspheres (.pdf)
    and should specify the spatial intervals of interest when tolerancing aspheric elements. Peak slope error measurement is prone to erroneous measurement errors due to surface contamination, environmental errors, and pupil focus. Finally, filtering has a strong influence on surface slope calculations
  • Managing Measurement Uncertainty (.pdf)
    In metrology, measurement uncertainty and the resulting potential for error are always present. Regardless of the technology employed, there can be an accumulation of tolerance errors in each element of the measurement process that puts the reliability of the inspected dimension in doubt. According
  • Challenges in Electric Power Measurement
    consumption, and to achieve marketing advantage. Precise power measurement is not as simple as one might think. The user is well advised to understand the fundamentals of analog signal conditioning. Simple measurements of power on the 50/60Hz power line may be up to 20 % in error if the Power Analyzer
  • Remove Operator Error - Automated 100% Inline Inspection
    with a digital gauge but variance caused by operator error was too great. Therefore automation was essential but accurate and repeatable 100% measurement of this rubber part had proved impossible until SMAC moving coil actuators were chosen as a solution: 'We explained the SMAC's inherent combination of force
  • Signal Conditioning and Transmission in Temperature Measurement
    construction and signal transmission. Impurities in the metal of sensing devices can result in temperature gradients that introduce error, and the transmission distance can affect the quality of the signal. In addition, the attributes of the measurement sensor as well as the method used for transmission can
  • Basic Techniques for Accurate Resistance Measurement
    At CAS DataLoggers we often receive calls from users working in resistance measurement applications, for example using string pots to measure movement, measuring thermistors/RTDs for temperature, measuring the resistance on test samples, and many more applications. In this white paper, we'll cover

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