文献一覧: 一般社団法人日本時計学会 (出版者)

112 0 0 0 OA 世界最大の砂時計に夢を託す人々の町, 仁摩町

著者: 仙田修
出版者: 一般社団法人日本時計学会
雑誌: マイクロメカトロニクス (ISSN:13438565)
巻号頁・発行日: vol.42, no.2, pp.59-60, 1998-06-10 (Released:2017-11-09)
参考文献数: 2

2023-06-18 09:05:20
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12 0 0 0 天文精密日時計の製作

著者: 上原秀夫
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.151, pp.1-10, 1994

Until now, the sundial has hardly been made especially in pursuit of accuracy and function. The typical sundial indicating the time at the angle of the shadow of edge lines has no structure to correct the atmospheric refraction. On the other hand, the sundial using a two-dimensional dial for reading at the center position of the shadow of a sphere provides a precise design so that not only the time difference by equation of time and longitude but also atmospheric refraction can be corrected. This"astronomical precise sundial"uses a two-dimensional dial, and it is a precise and highly functional sundial designed and manufactured in pursuit of the possiblity of the sundial from the viewpoint of astronomers. As the functions of this sundial, the local sidereal time can be directly read for the first time in the world, and the various information such as the sunrise and sunset times and the azimuth and altitude of the sun can be obtained.

2023-10-21 16:50:03
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9 0 0 0 OA 音叉の振動モード

著者: 小滝富雄
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.40, pp.45-61, 1966-12-01 (Released:2017-11-09)

A theoretical method to obtain the vibration mode of the tuning fork is explained and some discussions are done relating to the obtained vibration mode. Here, the tuning fork is regarded as the one composed of three straight bars which are connected with each other at right angle to form the U-shape. Through the above method, the resonant frequencies n_j (j=1, 2, 3, .....) and the corresponding modes of vibration can be calculated. In the results, it is seen that, when j is odd, the bending motion of the two paralledl sides of the tuning fork are in the opposite direction, when j is even, however, those are in the same direction. Moreover, when two tuning forks are of the similar shape, it is certified that there exists a simple relationship between the vibration modes of these two tuning forks. By using this relationship, unknown vibration modes of the one can be obtained easily, if the modes of the other are known. In the tuning fork, having uniform material and section, the resonant frequencies are given by n_j(k)=m^2_j(k)^-2√<EI/Sp,> where E, p , I, S and l are Young's modulus, the density of the material, the moment of inertia, the area of the section, and the total length of the tuning fork, respectively. k means the ratio of the bottom side length of the U-shape to the parallel side length, and the proportional constants m^2, are shown in a table, with the various values of k. On the asymmetrical tuning forks of which two parallel sides have a slight difference in length, the vibration modes are calculated. The changes of the resonant frequeny and the nodal point are shown in connection with the change of the difference of the parallel sides. The results of the above theoretical analysis are compared with the experimental one, and it is ascertained that both are in good coincidence.

2018-09-07 08:30:33
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8 0 0 0 OA 立太子奉祝御飾時計の修理復元作業

著者: 崎田英一牛山天晴
出版者: 一般社団法人日本時計学会
雑誌: マイクロメカトロニクス (ISSN:13438565)
巻号頁・発行日: vol.66, no.226, pp.56-64, 2022-06-15 (Released:2023-09-13)

2023-10-08 22:22:44
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7 0 0 0 OA 田中久重「万年時計」調査報告

著者: 土屋榮夫
出版者: 一般社団法人日本時計学会
雑誌: マイクロメカトロニクス (ISSN:13438565)
巻号頁・発行日: vol.50, no.194, pp.58-68, 2006-06-10 (Released:2017-11-09)

2020-12-15 00:05:32
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7 0 0 0 腕ターミナル "RC-1000" の開発

著者: 横澤幸男藤森弘章
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.113, pp.15-28, 1985

A Wrist watch "WRIST TERMINAL RC-1000" has been developed and put on the market. This one not only can receive data directly from information processing instruments (personal computers) but also memorise and readout the data at any time. As the RS-232C interface and RAM of 2K bytes are installed in the wrist watch, such functions as memory, schedule alarm, and world time are also fulfilled.

2014-09-12 10:51:38
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7 0 0 0 小型フライス盤の設計と試作(研究)

著者: 佐藤健太金岡直樹津田展宏奥山淳
出版者: 一般社団法人日本時計学会
雑誌: マイクロメカトロニクス (ISSN:13438565)
巻号頁・発行日: vol.52, no.199, pp.6-16, 2008
参考文献数: 4

We develop a small NC milling machine based on the concept of a micro factory. We try to manufacture this machine for using even in the laboratory where there are lot of amateur machine operators for getting trial machine parts. The small NC milling machine size is about 150mm×100mm×270mm. It is about 1/10 of the general milling machines. To evaluate this machine's performances we first make square parts:5mm×5mm×2mm and we make sure that this square parts accuracy is kept within 0. 01mm. We also make one of typical machine parts : a gear, and a circular pyramidal shape which is called a 2. 5 dimensional sample.

2014-07-02 15:52:46
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4 0 0 0 OA Édouard Phillipsによるヒゲゼンマイの理論の詳解およびその実際の効果

著者: 菊池悠介小牧昭一郎笹谷卓史菊野昌宏居内友宏
出版者: 一般社団法人日本時計学会
雑誌: マイクロメカトロニクス (ISSN:13438565)
巻号頁・発行日: vol.62, no.218, pp.13-22, 2018-06-15 (Released:2020-06-15)
参考文献数: 11

Édouard Phillips, a theoretician of 19th century, advocated the conditions of inner and outer end of Archimedes spiral, which is referred to as Conditions of Phillips. However, Phillips developed the expression for conditions using approximation, actual effect has not been adequately evaluated. We conduct holomorphic computation and it is realized that conditions of Phillips improve significantly not only isochronism of horizontal position but also that of vertical position.

2021-04-29 20:01:56
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3 0 0 0 OA 新型時計用潤滑油“AO-オイル”の開発

著者: 赤尾祐司
出版者: 一般社団法人日本時計学会
雑誌: マイクロメカトロニクス (ISSN:13438565)
巻号頁・発行日: vol.62, no.219, pp.1-12, 2018-12-10 (Released:2020-12-15)
参考文献数: 37
被引用文献数: 1

It has been 17 years that we developed the watch lubricant “AO-oil” which resolves the problems of existing watch lubricant, i.e. “gelation”, “metal corrosion”, and “temperature dependence of watch lubricant's viscosity”, caused by time decay. AO-oil has been developed especially with focusing on base oil and viscosity modifier, which extends the life of timepieces and enhances reliability. Furthermore, by enforcing higher lubrication and stability I found that the lifetime can be extended much longer. As to this development, an optimal additive has to be selected by focusing on antiwear/extreme-pressure agent and antioxidation agent. Hence, now I report on this new watch lubricant “AO-oil”.

2023-10-23 20:15:45
1 知恵袋
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3 0 0 0 OA 時計技術の今昔

著者: 井上三郎鎌田正久中村恒也山崎六哉横山雄一西村源六郎飯島重孝久保田浩司小滝富雄神保泰雄谷口紀男遠山正俊福与人八宮里孝典村上雅美元持邦之
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.93, pp.47-77, 1980-06-20 (Released:2017-11-09)

2022-12-16 19:30:28
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3 0 0 0 OA 新夜光塗料「N夜光」について

著者: 村山義彦鈴木哲郎清水俊夫田丸勝秋三橋誠二藤森瑞恵丸川道雄金刺隆伸清水薫木下勝弘内藤英樹柴崎靖雄川原公和岩垂善幸牧羽英典倉田誠一杉本伸行遠山正俊高上輝雄福田正雄石塚敏
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.155, pp.51-83, 1995-12-25 (Released:2017-11-09)

2022-11-19 23:01:10
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3 0 0 0 OA 自動巻時計研究への貢献, Achim Hoffmann(物理学士)A・Schild S.A., S.S.C.第45回会議 1970年10月3日.4日, 於Lucerne(スイス)

著者: シチズン時計株式会社
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.65, pp.27-50, 1973-03-25 (Released:2017-11-09)

2022-06-29 20:36:19
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3 0 0 0 OA 自律自走ロボット「ムッシュ君」の開発

著者: 宮澤修小池信宏
出版者: 一般社団法人日本時計学会
雑誌: 日本時計学会誌 (ISSN:00290416)
巻号頁・発行日: vol.146, pp.42-50, 1993-09-25 (Released:2017-11-09)

We have launched production and sales of "Monsieur", a microrobot that is probably the world's first micromachine to move from drawing board to factory floor. "Monsieur" employs an internalized CPU-IC, rechargeable capacitor, two drive units, and a pair of photosensors to enable it to independently propels itself toward a light source. Skilled technicians assemble "Monsieur" by hand from a total of ninety-eight parts, most of which are general purpose watch parts.