Ernest Triplett, 1st Maintenance Squadron precision measurement equipment laboratory electronics technician, calibrates a 5720A Multifunction Calibrator using current shunts at Joint Base Langley-Eustis, Va., March 20, 2017. The PMEL flight has two sections, electrical standards and physical dimensions, that work together to calibrate equipment across numerous spectrums to include voltage, resistance, current, frequency, power, temperature, linear, force, tension and pressure. ( Air Force photo/Senior Airman Areca T. Bell)

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Keywords: 1st, airmen, areca, base, bell, joint, langley, langley-eustis, maintenance, pmel, squadron