RU1800263C

RU1800263C - Method and device for determining increments

Info

Publication number: RU1800263C
Application number: SU904844647A
Authority: RU
Inventors: Юрий Григорьевич Соколов
Original assignee: Кубанский сельскохозяйственный институт
Priority date: 1990-04-09
Filing date: 1990-04-09
Publication date: 1993-03-07

Description

см с ценой делени 5 мм. В помещении в стены здани были заложены две марки, превышение между которыми было тщательно определено строго из середины выверенным нивелиром Н05. Оно составило + 30,10 мм.cm with a division price of 5 mm. Two grades were laid in the walls of the building, the excess between which was carefully determined strictly from the middle with a calibrated level of H05. It amounted to + 30.10 mm.

Апробаци предлагаемого изобретени была выполнена с использованием нивелира Н2, угол i у которого был доведен до +32. Нивелир устанавливалс между марками. При этом рассто ни от нивелира до реек составили di 9,0 м (до задней) и d2 4,0 м (до передней).Testing of the invention was carried out using the H2 level, the angle i of which was brought up to +32. The level was established between brands. In this case, the distances from the level to the rails were di 9.0 m (to the rear) and d2 4.0 m (to the front).

Результаты измерений приведены ниже в таблице. Отсчеты по рейкам ai и 32 снимались по основной и дополнительной шкалам .The measurement results are shown in the table below. The readings for rails ai and 32 were taken on the main and additional scales.

Как видно из таблицы, поправка, компенсирующа погрешности за угол i нивелира , получилась значительна (0,78 мм), а превышение с учетом этой поправки отличаетс от истинного значени всего на 0,04 мм.As can be seen from the table, the correction, compensating for the errors for the angle i of the level, was significant (0.78 mm), and the excess taking into account this correction differs from the true value by only 0.04 mm.

Claims

1. A method for determining excesses, in which the level ai and aa are taken on the first and second rails, respectively, followed by finding the excess, taking into account the obtained samples ai and aa2, characterized in that, in order to increase accuracy by reducing the influence of error due to the angle i level, when taking readings, use slats made with mirrored vertical surfaces, and a level made with a vertical scale attached to its lens, and after removing each of the samples, ah and 32 remove additional total counts of Ni 2 from the vertical scale images formed by the mirror surface of the corresponding rail, and the value of 5 exceeding h is found from the expression

0

h (ai-a2) + (l2-li);

2. The device for determining elevations containing level and rails,

characterized in that, in order to increase accuracy by reducing the influence of error due to the angle i of the level, it is equipped with a transparent scale mounted on the top of the objective of the level perpendicular to its vesir axis, and each rail is made with a mirror mounted in parallel the plane of the rail.

FIG. 5

Editor

Compiled by T. Ivanova

Tehred M. Morgenthal Corrector M. Keretsman