Title :
Improving the mechanical stability of a standard capacitor
Author :
Moodley, S.S. ; van den Berg, W. ; Veldman, C.S. ; Vactec, C.C.
Author_Institution :
Nat. Metrol. Lab., CSIR, Pretoria, South Africa
Abstract :
CSIR-NML-manufactured 10 pF ULE (Ultra-Low Expansion) quartz capacitors had been in use since the early 1970´s. Although the capacitors were extremely stable, they were susceptible to mechanical shock. We present the development of a standard capacitor, with improvements to increase its robustness as well as results of shock and vibration tests.
Keywords :
capacitance measurement; capacitors; measurement standards; mechanical stability; 10 pF; SiO/sub 2/; mechanical stability; shock test; standard capacitor; ultra-low expansion quartz capacitor; vibration test; Assembly; Bellows; Capacitance; Capacitors; Containers; Electric shock; Plasma temperature; Stability; Testing; Vibrations;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034824
