mark okoth
Jun 16
Differentiate between temporary and permanent adjustment as applied to theodolite??
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ChatGPT
Jun 16
Temporary adjustment refers to the process of aligning the theodolite for a specific surveying task, such as leveling the instrument, centering it over a point, and adjusting the horizontal and vertical circles. These adjustments are made each time the theodolite is set up for a new surveying job and are not intended to be permanent.
Permanent adjustment, on the other hand, refers to the process of calibrating and aligning the theodolite to ensure its accuracy over the long term. This may involve more complex adjustments, such as adjusting the collimation error, adjusting the line of sight, and checking for any mechanical errors in the instrument. Permanent adjustments are typically done by a trained technician and are intended to maintain the accuracy of the theodolite over time.
Permanent adjustment, on the other hand, refers to the process of calibrating and aligning the theodolite to ensure its accuracy over the long term. This may involve more complex adjustments, such as adjusting the collimation error, adjusting the line of sight, and checking for any mechanical errors in the instrument. Permanent adjustments are typically done by a trained technician and are intended to maintain the accuracy of the theodolite over time.
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Google Gemini AI
Jun 16
Temporary Adjustment
- Purpose: To correct minor errors in the instrument that may arise during setup or use.
- Method: Adjustments are made using small screws or knobs on the instrument.
- Duration: Adjustments are temporary and will need to be repeated if the instrument is moved or knocked.
Permanent Adjustment
- Purpose: To correct more significant errors in the instrument that are inherent to its construction.
- Method: Adjustments are made by disassembling the instrument and adjusting the internal components.
- Duration: Permanent adjustments are intended to be long-lasting and should not need to be repeated unless the instrument is damaged.
Key Differences
| Feature | Temporary Adjustment | Permanent Adjustment |
|---|---|---|
| Purpose | Correct minor errors | Correct inherent errors |
| Method | Adjustments made with screws/knobs | Adjustments made by disassembling the instrument |
| Duration | Temporary (need to be repeated) | Permanent (should not need to be repeated) |
| Precision | Less precise | More precise |
| Skill Required | Typically requires less skill | Requires specialized knowledge and skills |
When to Use Each Type of Adjustment
- Temporary adjustment: Use for quick and easy corrections during instrument setup or use, such as leveling the instrument or centering the bubble.
- Permanent adjustment: Use when an error is consistent and cannot be corrected with temporary adjustments, such as an error in the telescope's collimation or the vertical axis.
- Purpose: To correct minor errors in the instrument that may arise during setup or use.
- Method: Adjustments are made using small screws or knobs on the instrument.
- Duration: Adjustments are temporary and will need to be repeated if the instrument is moved or knocked.
Permanent Adjustment
- Purpose: To correct more significant errors in the instrument that are inherent to its construction.
- Method: Adjustments are made by disassembling the instrument and adjusting the internal components.
- Duration: Permanent adjustments are intended to be long-lasting and should not need to be repeated unless the instrument is damaged.
Key Differences
| Feature | Temporary Adjustment | Permanent Adjustment |
|---|---|---|
| Purpose | Correct minor errors | Correct inherent errors |
| Method | Adjustments made with screws/knobs | Adjustments made by disassembling the instrument |
| Duration | Temporary (need to be repeated) | Permanent (should not need to be repeated) |
| Precision | Less precise | More precise |
| Skill Required | Typically requires less skill | Requires specialized knowledge and skills |
When to Use Each Type of Adjustment
- Temporary adjustment: Use for quick and easy corrections during instrument setup or use, such as leveling the instrument or centering the bubble.
- Permanent adjustment: Use when an error is consistent and cannot be corrected with temporary adjustments, such as an error in the telescope's collimation or the vertical axis.
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