NCSLI New Mexico Section
Thursday, March 19, 2020
The Albuquerque NCSL International Section provides metrology related training, information and discussion. The featured topic will be on "AC-DC Difference: Basic Principles." Our goal is to promote metrology, calibration, and testing throughout the region. Come and meet other metrology, calibration, and testing professionals with plenty of time for networking.
Ricky Sandoval firstname.lastname@example.org
Edward O’Brien email@example.com
10:00 AM – 12:30 PM
Cost to attend meeting:
TEVET - Albuquerque Corporate Office
1314 Madeira Dr. SE 87108
Albuquerque, NM 87108
Take I-25 to Gibson Blvd and proceed eastbound until reaching Madeira Drive.
Take I-40 to San Mateo Blvd and proceed southbound until reaching Eastern Ave SE and then proceeding eastbound until reaching Madeira Drive. Proceed southbound on Madeira Drive until reaching 1314 Madeira Drive SE.
Refreshments and snacks will be provided
AC-DC Difference: Basic Principles
Stefan Cular, National Institute of Standards and Technology (NIST)
AC-DC difference serves as the fundamental link to the SI for ac voltage, current and power. But where does this quantity come from and how is it applied? In this presentation the underlying principles of the measurements will be presented from basic device physics and determination of the ac-dc difference to scaling the value to the far reaches of the standard calibration service measurement space roughly defined as 1 mV to 1 kV and 1 mA to 100 A over a frequency range of 10 Hz to 100 MHz. The number of ac-dc difference scaling steps from primary standards was reduced over the last decade using thin film multijunction thermal converters, which subsequently reduced the uncertainty provided to customers. Although this rudimentary knowledge is widely published, and there is significant demand for the calibration service, there are only a handful of labs around the world that have independent realization of the ac-dc difference, NIST being one of them.
|9:45 am – 10:00 am
|10:00 am – 10:15 am
||Eddie & Ricky
|10:15 am – 11:15 am
||AC-DC Difference: Basic Principles
|11:15 am – 12:30 pm