Author Archives: Khanh Nguyen
Calibration Lab Environmental Conditions: Temperature & Humidity Control (ISO/IEC 17025)
Why ISO/IEC 17025 calibration labs control temperature and humidity: the 20 °C reference, thermal expansion...
Allan Deviation Explained: Measuring Oscillator & Frequency Stability
Allan deviation (ADEV) is the standard metric for oscillator and frequency-standard stability. Learn how to...
How to Use an AC Power Source?
How to Use an AC Power Source: Setup, Operation & Best Practices An AC power...
How to Build a Measurement Uncertainty Budget (ISO/IEC 17025)
A step-by-step guide to building a measurement uncertainty budget for ISO/IEC 17025 calibration: Type A...
AC Power Source Calibration: Precision in Electrical Testing
AC Power Source Calibration: Ensuring Precision in Electrical Testing Reliable electrical testing depends on accurate...
Calibration vs Gage R&R (MSA): What’s the Difference and Do You Need Both?
Calibration verifies a gage reads true against a traceable standard; Gage R&R (MSA) measures how...
Thermocouple Calibration: Comparison vs Fixed-Point Methods
The two thermocouple calibration methods, comparison and fixed-point, explained: which to specify, Type K drift,...
As-Found vs As-Left Calibration Data: A Quality Manager’s Guide
As-found data is your instrument's condition on arrival; as-left is after adjustment. As-found drives reverse-traceability...
Best Calibration Service Providers in the US (2026 Comparison)
Choosing among the best calibration service providers in the US comes down to three questions:...
How Often to Calibrate Coordinate Measuring Machine?
How Often to Calibrate Coordinate Measuring Machine: Ensuring Dimensional Accuracy & Compliance Maintaining the precision...