Precise determination of separation between spherical attracting masses in measuring the gravitational constant

Chinese Physics Letters

Volumn 18, Issue 8, 2001, Pages 1012-1014

  Luo, Jun ^a   Wang, Wen Min ^a   Hu, Zhong Kun ^a   Wang, Xue Li ^a  

^a HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

GAGE BLOCKS; GRAVITATION; LASER BEAMS;

GAUGE BLOCK; GRAVITATIONAL CONSTANT; HIGH-PRECISION; OPTICAL PLATES; PRECISE DETERMINATIONS; SYMMETRICS; UNCERTAINTY;

SPHERES;

EID: 0035598808     PISSN: 0256307X     EISSN: None     Source Type: Journal    
DOI: 10.1088/0256-307X/18/8/305     Document Type: Article

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23. The gauge block (Grade 1) was made by Chengdu Measuring & Cutting Tools Co., Ltd. in 1996.
24. Model SR540-4 Hz-3.7 kHz Chopper, made by Stanford Research Systems Company, Sunnyvale.
25. The position sensor is a one-dimensional position-sensitive photocell (model SD-1166-21-391) made by Silicon Detector Corporation, Newbury Park.
26. Both of these were SR830-DSP lock-in amplifiers, made by Stanford Research Systems Company, Sunnyvale.