Work

Sensitivity calibration for mass comparator based on optical force

Year: 2024

Type: article

Abstract: The laser photon-momentum-based method is more and more used in the optical power measurements. As a revert use, the laser optical power can be used as a traceable source to small mass in micro range using the same photon-momentum-based method to new SI with better measuring accuracy. The sensitivity calibration for mass comparator based on laser optical force was carried out using an optical power range between 20 W and 120 W at a wavelength of 1080 nm. The air density meter is used to sense the stability of the laser power and optical force. Uncertainty of measurement is evaluated. With a coverage factor k = 2, relative expanded uncertainty of reference sensitivity mass standard using photon force of laser is better than 2 %. The uncertainty of the sensitivity calibration is also investigated.

Source: Measurement Sensors

DOI: 10.1016/j.measen.2024.101366

Authors: Manhong Hu, Jian Wang, Changqing Cai, Qing Sun, Kai Jiao, Hanghang Chen

Institution: National Institute of Metrology

Language: English

Topic: Scientific Measurement and Uncertainty Evaluation

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: gold

Estimated APC paid: $1,800

Funders: National Natural Science Foundation of China, National Institute of Metrology, China