mark okoth
Jun 16
State relationship that must hold true for theodolite to be in perfect adjustment??
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ChatGPT
Jun 16
The relationship that must hold true for a theodolite to be in perfect adjustment is that the horizontal and vertical axes must be perpendicular to each other. This ensures that the theodolite is accurately measuring angles in both the horizontal and vertical planes.
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Google Gemini AI
Jun 16
Horizontal axis level: The bubble of the level vial on the horizontal axis must be centered when the instrument is set level.
Vertical axis level: The bubble of the level vial on the vertical axis must be centered when the vertical circle is set to zero.
Line of sight perpendicular to horizontal axis: When the telescope is sighted on a distant object and the horizontal circle is set to zero, the line of sight should be perpendicular to the horizontal axis. This can be checked by rotating the telescope 180 degrees around the horizontal axis and observing if the line of sight intersects the same point on the object.
Line of sight perpendicular to vertical axis: When the telescope is sighted on a distant object and the vertical circle is set to zero, the line of sight should be perpendicular to the vertical axis. This can be checked by rotating the telescope 180 degrees around the vertical axis and observing if the line of sight intersects the same point on the object.
Parallelism of plates: The plates of the verniers should be parallel to each other and perpendicular to the axis of rotation of the instrument. This can be checked by reading the vernier scales on opposite sides of the instrument and observing if they give the same reading.
Collimation adjustment: The line of sight of the telescope should be aligned with the crosshairs. This can be adjusted by using collimating screws located in the telescope housing.
Vertical axis level: The bubble of the level vial on the vertical axis must be centered when the vertical circle is set to zero.
Line of sight perpendicular to horizontal axis: When the telescope is sighted on a distant object and the horizontal circle is set to zero, the line of sight should be perpendicular to the horizontal axis. This can be checked by rotating the telescope 180 degrees around the horizontal axis and observing if the line of sight intersects the same point on the object.
Line of sight perpendicular to vertical axis: When the telescope is sighted on a distant object and the vertical circle is set to zero, the line of sight should be perpendicular to the vertical axis. This can be checked by rotating the telescope 180 degrees around the vertical axis and observing if the line of sight intersects the same point on the object.
Parallelism of plates: The plates of the verniers should be parallel to each other and perpendicular to the axis of rotation of the instrument. This can be checked by reading the vernier scales on opposite sides of the instrument and observing if they give the same reading.
Collimation adjustment: The line of sight of the telescope should be aligned with the crosshairs. This can be adjusted by using collimating screws located in the telescope housing.
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