What are the types of comparator in metrology?

Types Of Comparators :

• Mechanical comparators. Dial Indicator. Reed Type comparator. Sigma Comparator. Johansson Mikrokator.
• Mechanical Optical Comparators. Optical Lever. Zeiss Optimeter. Zeiss Ultra Optimeter. Zeiss Optotest Comparators.
• Electrical and Electronics Comparators.
• Pneumatic Comparators.

What are different types of comparators?

Types of comparators are categorized into several kinds, namely electronic, electrical, optical, mechanical, sigma, pneumatic and digital comparators. Comparators play a vital role in making electrical and electronic projects.

What are comparators in instrumentation?

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. A telecentric optical system is used to enable accurate measurements.

What are types of mechanical comparator?

There are four types of mechanical comparators available.

• Dial Indicator.
• Johansson Mikrokator.
• Reed type Mechanical Comparator.
• Sigma Comparator.

Which comparator has highest magnification?

pneumatic comparators
Higher Magnification: A high as 30,000:1 magnification can be achieved with pneumatic comparators.

What is comparator and its application?

A comparator is an electronic component that compares two input voltages. Comparators are closely related to operational amplifiers, but a comparator is designed to operate with positive feedback and with its output saturated at one power rail or the other.

Which is the use of comparator?

A comparator circuit compares two voltages and outputs either a 1 (the voltage at the plus side) or a 0 (the voltage at the negative side) to indicate which is larger. Comparators are often used, for example, to check whether an input has reached some predetermined value.

What are the advantages of comparator?

Advantages of Electrical Comparators

• (i) The electrical comparators have got small number of moving parts.
• (ii) It is possible to have a very high magnification and the same instrument may have.
• ‘(iii) The mechanism carrying the pointer is very light and not sensitive to vibrations.

What is the main advantage 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 are the characteristics of comparator?

The characteristics of Comparator

• The important characteristic of comparator are.
• Speed of operation. The output of comparator must switch rapidly between the saturation level (+vsat or -Vsat) and also respond instantly to any change of condition at its input .
• Accuracy.
• Compatibility of output.

What are the applications of magnitude comparator?

These are used in control applications in which the binary numbers representing physical variables such as temperature, position, etc. are compared with a reference value. Comparators are also used as process controllers and for Servo motor control. Used in password verification and biometric applications.

What do you mean by mechanical comparator in metrology?

| Metrology. A comparator is a precision instrument used to compare the Dimensions of a given workpiece component with the actual working standard. Mechanical Comparators are the type of comparator which is made up of mechanical means.

What are the different types of optical comparators?

1. Optical Comparator and Types 2. Working Principle of Optical comparator 2.1. 1) Principle of Optical Lever: 2.2. 2) Principle of Mechanical – Optical Comparator: 3. Types of Optical Comparators 3.1. 1. Zeiss Ultra Optimeter: 3.2. 2. Zeiss Optotest Comparator: 3.3. 3. Newall OMS Horizontal Optimeter: 3.4. 4. Eden-Rolt Millionth Comparator: 4.

Which is the best mechanical comparator for Sigma?

This Sigma Comparator is also provided with a frictional less linear movement as like Reed Type Mechanical Comparator. The number of parts in sigma comparator is more than the other Mechanical comparators types.

Which is the best definition of a comparator?

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.