The first part describes gyrotheodolite and methods of determining astronomical true north. The workflow for measurement and subsequent data processing is described below.
The article deals with the principle of using gyrotheodolite in connection and orientation measurements. It describes orientation measurements with gyrotheodolite, provides basic information about the device and explains how it works. The first part describes gyrotheodolite and methods of determining astronomical true north. The workflow for
The gyrotheodolite type MOM Gi-B3 supplied with a mechanism to autotrack the gyro's oscillation and analogous optical readout units is the last MOM gyrotheodolite manufactured in quantity production. Its application came to the fore in the early 2000's in connection with the construction of the Budapest Metro Line 4 finally started in 2006.
Be sure to look at the broad selection of theodolites and other surveying tools that we have at Engineering Supply. Sort Order. Spectra Precision 2-Second Theodolite DET-2. ES4604. $1,150.00. Topcon Diagonal Eyepiece 13 (Part 53331) ES2983. $399.99. Futtura 5-Second Digital Theodolite DT-5.
S: This paper briefly presents the operation principle, the ability of application of gyrotheodolite to the tunnel orientation. The paper also presents a comparison of the accuracy between the traverse established with traditional method, measuring angles and sides, and the traverse inside the tunnel with azimuth of measured sides determined by …
Fig. 1: Cyromat gyrotheodolite in use below ground With GYROMAT, the most recent gyrotheodolite design resulting from 35 years of research and development work of DMT, north finding is run continuously by automatic measurements of only one gyroscope oscillation at small ampli-tude. For this purpose, the free gyroscope oscillation is …
Gyrotheodolite. 1. GYRO-THEODOLITE • This is a north-seeking gyroscope integrated with a theodolite, and can be used to orientate underground base lines relative to true north. • There are two main types of suspended gyroscope currently available. • The older Wild GAK1 developed in the 1960s–70s, which requires careful …
A number of problems associated with the practical use of the gyrotheodolite are examined and some of the ways of determining the null-line of the spinning gyroscope oscillations are reviewed for the tracking and non-tracking procedures, using the manual mode. A summary is given of the relevant formulae and examples are …
The gyro-theodolite is widely used for underground surveys both in mining and civil engineering where precise independent bearings at any point underground would be of …
STUDYING ON THE ABILITY OF APPLICATION OF GYROTHEODOLITE TO THE TUNNEL ORIENTATING IN CONSTRUCTING THE SUBWAY TUNNEL BY TBM TECHNOLOGY IN VIETNAM. Diêm Công Huy. Engineering. S: This paper briefly presents the operation principle, the ability of application of gyrotheodolite to the tunnel orientation.
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About Us. Welcome to the Village of Minier! Minier is a small farming town with a population of 1,300, located west of Bloomington, IL, in Tazewell County. The history of Minier dates back to October 1867, the year in …
This is a handbook to introduce mine surveyors to the use of gyrocompass gyrotheodolite equipment. It contains a brief explanation of the principle of the gyroscope and of a …
Gyrotheodolite is a measuring instrument to determine precise true azimuth. During the course of measurement, rough north-finding and precise north-finding are two necessary steps. The two steps ...
The Village Office will be closed Friday, June 21, 2024. The Village Office will be closed Monday, June 21, 2024. Please email minier@minier with questions. If you have a water emergency, please contact Kent at 309-261-8127. As always, the 24-hour drop box located at 110 W Central is available for your convenience. Read More ».
WT5BZ]A new type gyro-theodolite scheme based on the fundamental law and kinematic behavior of gyroscope is presented. In this scheme, a mechanics model of high speed gyroscope rotor has been established, by which the angular velocity of earth rotation was educed. The advanced CCD optoelectricity measuring technology was adopted to …
The gyrotheodolite correction on each start-up was calculated as the differ-ence between the astronomic and gyroscopic azimuths of the initial direction. The period of the free oscillation of the sensitive element was measured to an accuracy of 0.1" during determination of the correction on each start-up. ...
The location is found by inspecting Curly's compass while at Alexandria Ranch. After acquiring this you discard Curly's compass. Examining it reveals that has 4 lights, and a maximum depth at which it works. The lights light up as you descend in Madness Maw Mine. Examine again on the third level of Madness Maw Mine to discover a secret room ...
A gyrotheodolite is an instrument that combines a gyroscope and a theodolite through a connecting mechanism to measure the true north azimuth angle. It …
In surveying, a gyrotheodolite (also: surveying gyro) is an instrument composed of a gyrocompass mounted to a theodolite. It is used to determine the orientation of true north. It is the main instrument for orientation in mine surveying and in tunnel engineering, where astronomical star sights are not visible and GPS does not work. Property.
Part of the mini-quest to find The Legend of Curly's Meat. The location is found by inspecting Curly's compass while at Alexandria Ranch. After acquiring this you discard Curly's compass. Examining it reveals that has 4 lights, and a maximum depth at which it works. Examine again on the third level of Madness Maw Mine to discover a secret room ...
the tests: for gyrotheodolite No. 853333, 112.3", and for No. 853341, ±10.2". These data enable the conclusion that real azimuths can be measured with the aid >f the Gi-C2 gyrotheodolite with an accuracy of ±15". Under favorable observation conditions and with a sufficiently experienced observer this can be increased to ±10".
Gyrotheodolite could be a survey instrument created by a gyro connected to transit. it's wont to confirm truth northward orientation by tracking the direction of the …
The paper presents the results of the application of a GYRO X II gyrotheodolite in determining bearings at -140 m and -350 m of the Nui Beo coal mine in order to improve orientation accuracy.
Technical report. Abstract: This report is intended as a practical guide to surveyors for making measurements to determine an azimuth using a gyrotheodolite. This report gives a brief description of how the gyro works, improved observing procedures for its use, and the results of field observations. Accuracies of ± 5 arc seconds be obtained.
Use of the gyrotheodolite ¡n underground networks of long high-speed railway tunnels. J. Velasco-Gómez., J. F. Prieto, I. Molina, T. Herrero, J. Fábrega and. E. Pérez-Martín. …
Keywords: Gyrotheodolite, Tunnels, Geoid, Deviation of the vertical Introduction The main aim, given the increasing need for long tun-nels, is to analyse – as a function of the tunnel length – ...
Abstract: This report is intended as a practical guide to surveyors for making measurements to determine an azimuth using a gyrotheodolite. This report gives a brief description of …
The quality of geodetic networks for guiding Tunnel Boring Machines (TBMs) inside long tunnels depends largely on the correct use of a gyroscope. These networks are based on a series of control points at the tunnel entrance, and link each station by means of survey observations as they advance along the tunnel. Once, the networks are used to …
A great example of this is the gyrotheodolite, an instrument that lets you navigate underground, by using the rotation of the earth to pick out direction. The Chunnel, which connects England to ...
This is a handbook to introduce mine surveyors to the use of gyrocompass gyrotheodolite equipment. It contains a brief explanation of the principle of the gyroscope and of a pendulum type, meridian-tracking gyrocompass. Typical Soviet, Hungarian and East German mine surveying gyrocompasses are described in some detail, with instructions …
Xin Liu. The gyro-theodolite is widely used for underground surveys both in mining and civil engineering where precise independent bearings at any point underground would be of very great value ...
The design of surveying networks inside tunnels is of crucial importance because an optimal design enables the network to fulfill its required quality parameters, for instance, precision and reliability. The precision of a geodetic network in a tunnel usually decreases drastically as the network expands inside the tunnel and as the distance to ...
The article deals with the determination of the achievable accuracy of an azimuth by the follow-up measurement, which is provided by the Sokkia GYRO X II automatic Gyro Station. The paper briefly describes basic information about the device and how it works. The first part describes the gyrotheodolite and the follow-up …
A. Falter Falter Engineering Co., P.O. Box 1051, Sudbury, Ont. Gyroscopic surveying instruments, which apply the physical law of a gyroscope, are being used for determining the azimuth of lines with a high degree of accuracy. In the past ten years, gyro-theodolites have been introduced widely for underground orientation in the mining industry ...
