Mechanical Engineering Exam > Mechanical Engineering Questions > An Autocollimator is used toa) Measure small ...
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An Autocollimator is used to
a) Measure small angular
displacement on flat surface
b) Compare known and unknown dimensions
c
) Measure the flatness errord) Measure roundness error between center
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
An Autocollimator is used toa) Measure small angulardisplacement on fl...
An autocollimator is an optical instrument that is used to measure small angles with very high sensitivity. As such, the autocollimator has a wide variety of applications including precision alignment, detection of angular movement, verification of angle standards, and angular monitoring over long periods.
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An Autocollimator is used toa) Measure small angulardisplacement on fl...
Autocollimator in Mechanical Engineering
Autocollimator is a type of optical instrument used in mechanical engineering for measuring small angular displacements on a flat surface. It is an essential tool used in metrology for high-precision measurements.
Working Principle
The working principle of an autocollimator is based on the reflection of light. It consists of a collimated light source that emits a parallel beam of light. The light beam is directed at a mirror, which reflects it back to the autocollimator. The reflected light beam is captured by a lens, which forms an image on the autocollimator's reticle.
Applications
Autocollimators are used in various applications in mechanical engineering, such as:
1. Alignment of optical components: Autocollimators are used to align optical components such as mirrors, lenses, and prisms. It helps to ensure that the components are aligned correctly and are parallel to each other.
2. Flatness measurement: Autocollimators are used to measure the flatness error of a surface. It helps to detect any deviations from a perfectly flat surface.
3. Angular displacement measurement: Autocollimators are used to measure small angular displacements on a flat surface. It helps to detect any misalignment or deviations from the desired angle.
4. Machine tool alignment: Autocollimators are used to align machine tools such as lathes, milling machines, and grinders. It helps to ensure that the machine tool is aligned correctly and is operating accurately.
Conclusion
In conclusion, an autocollimator is a valuable tool used in mechanical engineering for high-precision measurements. It is used to measure small angular displacements on a flat surface and can be used in various applications such as alignment of optical components, flatness measurement, and machine tool alignment.
Autocollimator is a type of optical instrument used in mechanical engineering for measuring small angular displacements on a flat surface. It is an essential tool used in metrology for high-precision measurements.
Working Principle
The working principle of an autocollimator is based on the reflection of light. It consists of a collimated light source that emits a parallel beam of light. The light beam is directed at a mirror, which reflects it back to the autocollimator. The reflected light beam is captured by a lens, which forms an image on the autocollimator's reticle.
Applications
Autocollimators are used in various applications in mechanical engineering, such as:
1. Alignment of optical components: Autocollimators are used to align optical components such as mirrors, lenses, and prisms. It helps to ensure that the components are aligned correctly and are parallel to each other.
2. Flatness measurement: Autocollimators are used to measure the flatness error of a surface. It helps to detect any deviations from a perfectly flat surface.
3. Angular displacement measurement: Autocollimators are used to measure small angular displacements on a flat surface. It helps to detect any misalignment or deviations from the desired angle.
4. Machine tool alignment: Autocollimators are used to align machine tools such as lathes, milling machines, and grinders. It helps to ensure that the machine tool is aligned correctly and is operating accurately.
Conclusion
In conclusion, an autocollimator is a valuable tool used in mechanical engineering for high-precision measurements. It is used to measure small angular displacements on a flat surface and can be used in various applications such as alignment of optical components, flatness measurement, and machine tool alignment.
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An Autocollimator is used toa) Measure small angulardisplacement on flat surfaceb) Compare known and unknown dimensionsc) Measure the flatness errord) Measure roundness error between centerCorrect answer is option 'A'. Can you explain this answer?
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