The Grating form of the Micrometer for the Low-Latitude Meridian Circle and the Principle of the Measurement

Wang Xiaobin

Publications of the Yunnan Observatory > 1994 > 0(2): 25-35.

Wang Xiaobin. The Grating form of the Micrometer for the Low-Latitude Meridian Circle and the Principle of the Measurement[J]. Publications of the Yunnan Observatory, 1994, (2): 25-35.

Citation:

Wang Xiaobin. The Grating form of the Micrometer for the Low-Latitude Meridian Circle and the Principle of the Measurement[J]. Publications of the Yunnan Observatory, 1994, (2): 25-35.

Citation:

Wang Xiaobin. The Grating form of the Micrometer for the Low-Latitude Meridian Circle and the Principle of the Measurement[J]. Publications of the Yunnan Observatory, 1994, (2): 25-35.

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The Grating form of the Micrometer for the Low-Latitude Meridian Circle and the Principle of the Measurement

Wang Xiaobin

Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011

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Received Date: March 13, 1994
Published Date: April 14, 1994

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Abstract

Abstract

According to the demand of the absolute measurement by the Low-latitude meridian circle, for problems of the measurement of the zenith distance in the direction of the prime vertical using the slant silts, the previous grating form is improved based on the former micrometer scheme. The new grating form and the measurement principle are introduced in the paper. The influence of the degree of the slant of slits for the measurements and the method of determination of the tilt of slits are also discussed.
- Meridian circle,
- Instrument error

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