Articles – Page 26 – Cal Lab Magazine

A Practical Guide for Selecting, Purchasing, and Receiving Accredited Calibration Service

March 5, 2015 Office

by Pam Wright Nearly everyone struggles with selecting, purchasing, and receiving accredited calibration services. This article is designed to provide practical guidance on ordering calibration service and what to do once the equipment is returned […]

Metrology 101: Basic Torque Calibration

December 4, 2014 Office

by Jerry Eldred The need for accurate torque measurement spans technologies and industries from missions to Mars, to installing lug nuts on your old pickup truck. When torque is correct, it makes us safer, and […]

Wide Band Microwave Noise Measurement System

December 4, 2014 Office

by Murat Celep In the wide band radiometer, it is necessary to use more than one low noise amplifier (LNA) because of their narrow band characteristic. The change in the gain of the LNAs with […]

Accelerate TDR Measurements with Electronic Calibration

December 4, 2014 Office

by John Dorighi and Rob Sleigh An important consideration for improving the accuracy of time domain reflectometer (TDR) measurements is user calibration. A TDR user calibration is performed to correct for systematic instrument errors along […]

Calibrating a UUT on a Remote Computer Using Fluke MET/CAL®

December 4, 2014 Office

by Michael Schwartz Current and next generation test equipment will be modular and tightly coupled with a computer’s operating system. Calibration labs have to be highly dynamic supporting all the measurement test systems turned in […]

1mW Power Sensor Calibration with Vector Mismatch Corrections Based on the Direct Comparison Method

September 11, 2014 Office

by Michael Schwartz Many calibration labs are starting to calibrate power sensors or looking to increase their capabilities and frequency range. In this Metrology 101 we are hoping to help some calibration labs improve their […]

Analyzing the Effects of Reducing the Ending Zero Versus Ignoring the Trailing Zero on Measuring Instruments Used for Force Calibration

September 11, 2014 Office

by Henry Zumbrun Differing opinions are found within the ASTM E28 sub-committee regarding the proper treatment of the trailing zero following the removal of an applied force. The ASTM E28 committee is responsible for the […]

Documentation & Document Control

September 11, 2014 Office

by Kenneth Parson There is an old saying, “Say what you do” and “Do what you say. This saying is the essence of the whole matter of laboratory management, operation and accreditation. I always like […]