Fluke Corporation, Hart Scientific Division - Technical Articles

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• Temperature Measurement and Calibration: What Every Instrument Technician Ought to Know (.pdf) (Temperature Sensing)
  From this Article:

  Temperature may be the most commonly measured physical parameter. Yet there have never been so many ways to measure it as there are today. With so many options it's natural to have a few questions.... (View Full Article)
• Infrared Temperature Calibration 101 (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  This application note explains the use and benefits of infrared thermometer calibration and what is commonly called a blackbody calibrator. Find out how regular calibration can make the difference in... (View Full Article)
• Eliminating Temperature Sensor Errors in Loop Calibrations (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  Significant performance improvement can realized by optimizing the loop calibration measurement system to better accommodate the unique characteristics of the temperature sensing element. All... (View Full Article)
• Understanding Uncertainties in Dry-Block Calibrators (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  The purpose of this application note is to help technicians and engineers understand and quantify measurement uncertainty when using dry-block calibrators and uses the Metrology Well from Fluke's Hart... (View Full Article)
• Standard Platinum Resistance Thermometers (SPRTs) (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  The handling and use of a Standard Platinum Resistance Thermometer (SPRT) are as important in achieving a high level of accuracy as the design and performance of the SPRT itself. Several types of... (View Full Article)
• Choosing Calibration Bath Fluid (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  The ideal bath fluid would have a low viscosity, high heat capacity, very low vapor pressure, and a high flash point. It would also need to cover a very wide temperature range. Unfortunately, no... (View Full Article)
• A Guide to Calibrating Your Spectrum Analyzer (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  A high level of confidence in spectrum analyzer performance has become especially important as more signals are crowded into the same space, making even small deviations capable of causing problems.... (View Full Article)
• How to Calibrate an RTD or Platinum Resistance Thermometer (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  Learn the procedures, methods, techniques and standards you need to know for temperature calibration. There are two types of calibrations applicable to PRTs: characterization and tolerance testing.The... (View Full Article)
• Verification of Electrical Safety Testers- A Better Approach (.pdf) (Calibration Instruments, Standards and Reference Sources)
  From this Article:

  This application note describes the functionality of electrical safety testers, and discusses requirements to verify their performance along with an improved method of verifying many of these devices.... (View Full Article)