理論的考察と設計 : ガルブランゼン型マイクロバランスの設計と製作 (第1報)

概要

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A highly sensitive microbalance of Gulbransen type having the beam made of fused silica and supported on a fine tungsten wire, has been designed and constructed for the use in high vacuum. The present paper deals with the theoretical considerations on sensitivity as affected by the geometry and weights, of the parts constituting the balance, the bending of the beam, and the dimensions of the supporting wire.<BR>Precision, capacity, and range are also discussed. If it be carefully constructed according to the design, sensitivity of about 10<SUP>-3</SUP>g/rad. can be attained. Higher sensitivity is delimited by uncontrollable errors of construction. But some slight corrections can considerably raise the sensitivity of the finished balance. Design considerations and preparation of the materials required are given. Detailed procedures of construction will be described later.
日本真空協会の論文