Tools and Instruments

Displaying 1 - 11 of 11

NIST's million-pound deadweight stack, assembled

4.45 MN Deadweight Force Generating Machine (Million Pound Force Dead Weight Machine)

The largest of 6 NIST deadweight force generation machines, the 4.45 MN Deadweight Force Generating Machine can apply 20 equal force increments of 222 kN (or

Plot of aluminum oxide photodetector typical responsivity in the EUV.

Aluminum Oxide EUV Photodetector Transfer Standard

Aluminum oxide (Al 2O 3) photodiodes are issued by NIST as transfer standard detectors in the extreme ultraviolet spectral region (5 nm to 125 nm). Each device

Aperture area measurement facility

NIST has established an absolute aperture area measurement facility for circular and near-circular apertures use in radiometric instruments. The facility

Center for High Accuracy Retroreflection Measurements (CHARM)

In 1993, the United States Congress directed the U.S. Department of Transportation to establish "a standard for a minimum level of retroreflectivity that must

Color and appearance metrology facility

The NIST Physical Measurement Laboratory has established the color and appearance metrology facility to support calibration services for 0°/45° colored samples

Lunar spectro-radiometer

Design of the lunar irradiance instrument is based on commercially available spectrographs. These spectrographs can be stable and sub-components are readily

Primary optical watt radiometer (POWR) facility

POWR is a cryogenic electrical substitution radiometer that serves as the Nation's optical power reference.

Plot of Si photodiode typical responsivity in EUV

Si EUV Photodiode Transfer Standard

Silicon (Si) photodiodes are issued by NIST as transfer standard detectors throughout the extreme ultraviolet spectral region (5 nm to 254 nm). Each device is

SIRCUS facility and uncertainties

The basic SIRCUS calibration setup is shown at the right. The output from a tunable laser is sent through an intensity stabilizer, then through a 'speckle

Spectral comparator facilities

Visible to near-infrared spectral comparator facility (Vis/NIR SCF) The Vis/NIR SCF is a monochromator-based system that typically measures the spectral power

Telescope calibration facility (TCF)

The Telescope Calibration Facility (TCF) was designed to support the NIST Stars project by providing a facility to radiometricly calibrate long focal length