For accurate and repeatable data, researchers at the NREL Metrology Laboratory at the Solar Radiation Research Laboratory ensure their measurements are traceable and their instruments are calibrated according to national or international standards.
The Metrology Laboratory provides National Institute of Standards and Technology (NIST) traceability for electrical:
- Voltage sources
- Frequency counters
- Transducers (watt, voltage, and current)
- Power supplies
- Current sources
- Function generators
- Current shunts
- Lock-in amplifiers
- Data loggers.
In addition, the lab provides NIST traceability for temperature probes and monitors, tachometers, pressure calibrators and gauges, and balances.