Articles – Page 31 – Cal Lab Magazine

Metrology 101: Calibrating 1 mW 50 MHz Power Reference Output

February 22, 2012 Office

By Hock Eng Lim This latest Metrology 101 articles shows us how to use new standards to calibrate the reference calibration output of a power meter. Read the Full Article (PDF)

Comparison of Uncertainty Calculation Models

February 22, 2012 Office

By Hening Huang Three models are available in the literature for calculating the expanded uncertainty using the experimental standard deviation: the Student’s t model, Craig model, and Bayesian model. This paper compares these three models […]

Calibrating Low-Temperature Radiation Thermometers

February 22, 2012 Office

By Peter Saunders The advent of low-cost handheld radiation thermometers, or infrared (IR) thermometers, has led to a proliferation of non-contact temperature measurement in the food, building, and low-temperature processing industries. These thermometers typically measure […]

Alaska Metrology & Calibration Services

February 22, 2012 Office

by Sita Schwartz This editor recently networked up with business owner, Clinton Schirard, out of Anchorage, Alaska. His situation is unique in that he operates a mobile unit in an especially extreme environment. How many […]

Effective Communication Between Customers and Their Labs

November 16, 2011 Office

By Heather A. Wade A customer may send equipment to a calibration vendor for calibration with the expectation of quickly receiving it calibrated. The only instructions sent with the equipment may be “please calibrate this.” […]

An Introduction to Mass Metrology in Vacuum

November 16, 2011 Office

By Patrick J. Abbott & Zeina J. Jabbour Mass metrology carried out in atmospheric pressure air is suitable for most every critical application. However, mass metrology in vacuum is important in several current research projects. […]

Metrology 101: Preparation and Use of an Ice-Point Bath

November 16, 2011 Office

Jerry Eldred, Lead Metrologist for Evans Analytical Group (EAG) Calibration Services in Austin, Texas, demonstrates the basic methods of creating an ice-point bath. Read the full article (PDF)

What’s Below the Iceberg: Determining the True Cost of Ownership of Test and Measurement Equipment

August 16, 2011 Office

By Duane Lowenstein Understanding the true cost of ownership of an asset is always hard, for Test and Measurement equipment, even harder. This difficulty is due to variables like calibration, technological life span, depreciation and […]