What is difference between mechanical and optical comparators?

Mechanical-Optical Comparators are same as the Optical comparators but the Plunger in mechanical-Optical comparator will be replaced with the Pivoted levers. The Plunger is replaced with the lever mechanism.

What is mechanical optical comparator?

Mechanical-Optical Comparator • Mechanical optical comparator consists of plunger which is attached with lever and a mirror on which the light strikes from the source. • The light coming form source is directed on the calibrated scale. • The angle of tilting min or is changed by movement of plunger.

What is a optical comparator used for?

An optical comparator is a measurement tool used to inspect and measure the dimensions of small manufactured parts. Images of the part are magnified using illumination sources, lenses and mirrors to make the 2-D measurement.

What are the mechanical comparators?

Mechanical comparator is a measuring instrument and the mechanism of this instrument is in the form of tape spring twisted, and that is positioned in the middle part. The middle part of the mechanical comparator rotates through a fixed angle upon tension which is shown in the figure.

What is the basic principle of comparators?

The general principle of the comparator is to indicate the difference in size between the standard and work being measured by means of some pointer on the scale with sufficient magnification. Initially, the comparator is adjusted to zero on its dial with a standard job in position as shown in Figure(a).

What is the advantages of mechanical comparator?

Advantages of Mechanical Comparators They are cheaper compared to other amplifying devices. the outside sources do not affect the accuracy. They have a linear scale robust and easy to handle. It is suitable for ordinary workshop and also easily portable.

What is the working principle of optical comparator?

Optical comparators are a type of optical measuring instrument. The measurement principle is similar to that of optical microscopes. The target is placed on the stage, and a light is shined on the target from underneath. This causes the target’s profile, or shadow, to be projected on the screen.

What is the advantage of mechanical comparator over others?

What is the advantage of mechanical comparator over others? Explanation: Mechanical comparator is cheaper as compared to others. Mechanical comparators have more moving parts due to this friction is more and accuracy is less. External supply is not required.

How many types of mechanical comparators are there?

Following are the Five types of mechanical comparator: The Johansson Mikrokator. Reed type Mechanical Comparator. Dial Indicator.

What is the advantages of mechanical comparator over others?

What is the advantages of mechanical comparator for others?

Advantages of Mechanical Comparators Mechanical comparators are cheaper as compared to other amplifying devices. These comparators don’t require any external supply of electricity or air. These comparators have a linear scale, for easy understanding. Generally, they are robust, compact and easy to handle.

What are the different types of optical comparators?

A comparator is a precision instrument used to compare the Dimensions of a given working component with the actual working standard. There are different types of comparators are available. An optical comparator is one of the types of a comparator which is made up of optical means.

What are the different types of mechanical comparators?

A comparator is a precision instrument used to compare the Dimensions of a given workpiece component with the actual working standard. There are different types of comparators are available Mechanical Comparators are the type of comparator which is made up of mechanical means. What mechanical means? Is this is a question raised in your mind too?

How is an electrical comparator used in metrology?

An Electrical comparator employs electrical means to get the magnification. In this comparator the movement of the measuring contact plunger is converted into an electrical signal. The electrical signal is recorded by an instrument which can be calibrated in terms of plunger movement.

How are comparators used in electrical circuit design?

Comparators play a vital role in making electrical and electronic projects. In electronic circuit design, an operational amplifier is used with negative feedback and it can also be used as a comparator. The designing of the comparator can be done without feedback for open loop formation.