Author Archives: Khanh Nguyen
AS9100 Calibration Requirements: What Aerospace Audits Check Beyond ISO 9001
TL;DR: AS9100 uses the same clause as ISO 9001, 7.1.5, but aerospace audits go deeper...
How to Budget for Calibration: The Fleet Cost Planning Guide
TL;DR: Budget calibration from the fleet up: count the real inventory, price by instrument class...
How to Build a Calibration Recall System That Never Misses a Due Date
TL;DR: A calibration recall system needs six components: a master instrument list, unique IDs and...
Calibration Requirements for ISO 9001: Clause 7.1.5 and the 6 Things Auditors Check
TL;DR: ISO 9001 clause 7.1.5 requires that measuring instruments be suitable, maintained, traceable where required,...
Infrared Thermometer Calibration: Emissivity, Blackbodies, and the Size-of-Source Effect
How infrared thermometer calibration works: emissivity, blackbody sources, size-of-source effect, D:S ratio, calibration points, and...
Network Analyzer Calibration Guide: Instrument Cal vs User Cal, Cost, and How Often
TL;DR: A VNA needs two different calibrations. The user calibration (SOLT/ECal) you run at the...
Power Supply Calibration Guide: What’s Checked, Cost, and How Often
TL;DR: Power supply calibration verifies voltage and current setting accuracy, readback accuracy, ripple and noise,...
Frequency Counter Calibration: Why the Time Base Decides Your Accuracy
A frequency counter is only as accurate as its internal time base. Learn how ISO/IEC...
Signal Generator Calibration Guide: What’s Verified, Cost, and How Often
TL;DR: Signal generator calibration verifies frequency accuracy, output level accuracy, level flatness, modulation accuracy, spectral...
Multimeter Calibration Guide: What’s Checked, Cost, and How Often
TL;DR: Multimeter calibration checks every function across its ranges, DC/AC voltage (with frequency response), DC/AC...