Working Principle of Opto-Mechanical Comparators - Design of Gauge

TL;DR

Optomechanical comparators magnify readings using mechanical lever and optical system, providing high accuracy but requiring electricity and a dark environment.

Transcript

hello students today we will learn the working principle of optomechanical comparator optomechanical comparator which is also called as mechanical optical comparator so this is the schematic diagram of the optomechanical or mechanical optical comparator so here this optomechanical comparator uses two principles for magnifying the readings so first ... Read More

Key Insights

• 😒 Optomechanical comparators use both mechanical and optical principles to amplify readings.
• 🦾 The mechanical lever amplifies small displacements, while the optical system projects the magnified image.
• 👻 The scale and readings are viewed on a screen, allowing for precise measurements.
• 💚 Green filters are used to enhance visibility by filtering out unwanted rays.
• ✋ Optomechanical comparators provide high accuracy but require an electric supply and a dark environment for optimal performance.
• 😒 Continuous use of certain optomechanical comparators might not be convenient due to the need for manual viewing through an eyepiece.
• 🙂 Heat from the light source can cause drift in the device's settings, making careful maintenance necessary.

Questions & Answers

Q: How does an optomechanical comparator magnify readings?

The optomechanical comparator uses a mechanical lever to amplify small displacements of the measuring plunger. The lever causes the mirror to tilt, magnifying the image of the index on a green screen.

Q: What is the role of the optical system in an optomechanical comparator?

The optical system in an optomechanical comparator includes a projection lens, a glass plate with an index line, and a collimator lens. It collects and projects the reflected rays from the mirror, allowing the image of the index to be viewed.

Q: What is the advantage of using a green filter in the optomechanical comparator?

The green filter in the optomechanical comparator filters all rays except the green light, which causes less fatigue to the eyes. This ensures better visibility and reduces eye strain during readings.

Q: Why is an electric supply necessary for operating optomechanical comparators?

Optomechanical comparators require an electric supply to power the light source, such as a lamp. The lamp sends light rays through filters and lenses, enabling the projection of the image onto the scale.

Summary & Key Takeaways

• Optomechanical comparators use a mechanical lever to amplify small displacements and a mirror and optical system to project the amplified readings onto a scale.

• The mechanical lever causes the mirror to tilt, magnifying the image of the index on a green screen.

• The reflected rays pass through a projection lens, a glass plate with an index line, and a collimator lens, and are viewed through a scale on a screen.