a very simple geodetic instrument that is used to lay off angles that are multiples of 90° or of 45°.
In a prism square (see Figure 1), the direction of a ray originating from the flag on the right is changed by 90° after refraction and internal reflection. To lay off the angle by which the direction of the ray is changed, a second flag is set up in such a way that, when it is seen over the instrument, it is exactly above the image of the first flag in the instrument.
It is used for transmitting stereo or multi-channel audio.
A chaining instrument is one used to measure the straight line distance between two points by comparing the distance to a known lenght. In past times a chain of known link distance was used, typically the chain 66 feet was used roughly 30m with 100 links. Nowadays if a surveying tape or a metal band is used, it is still called chaining.
An optical audio cable is used to transmit digital audio (AC-3) signal from the source to the receiver, such as from a DVD player to a digital audio amplifier/receiver. You can transmit 5.1 dolby digital or DTS surround sound with an optical audio cable, same as digital coaxial audio cable.
Radiation intersection traversing resection
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optical surveying instrument
optical surveying instrument
A dummy error refers to the error made in an optical level that is used in construction and surveying.
chain surveying is one of the types of survey methods. It is used to survey short length lands
General classifications of surveying include geodetic surveying, plane surveying, topographic surveying, cadastral surveying, construction surveying, and hydrographic surveying. Geodetic surveying deals with large-scale measurements of the earth's surface, while plane surveying focuses on small-scale measurements on a flat surface. Topographic surveying involves mapping of the land's natural features, cadastral surveying deals with land parcel boundaries, construction surveying is used for building projects, and hydrographic surveying is for mapping bodies of water and their features.
Finance. Surveying.
Traverse surveying is a method that is used to establish control networks in the surveying field. This method of surveying involves placing survey stations along a path of travel.
They are surveying instruments used to measure angles.
Geological surveying.
6 to 54 square miles ==More specifically...== A township in surveying terms is 36 sections, or 36 square miles.
geometry
Easting and Northing mostly