What are the types of comparator?
Types of Comparators
- Mechanical Comparator.
- Mechanical-Optical Comparator.
- Reed Type Comparator.
- Electrical-Electronic Comparator.
- Pneumatic Comparator.
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.
How do optical comparators work?
Optical comparators use this same principle. A part is affixed to a stage and a light source shines on it, resulting in a shadow image of the part. The shadow is magnified with lenses and bounced by mirrors onto the back of a screen. This screen is fixed at a known distance for measurement purposes.
How many types of comparators are available in metrology?
There are four types of mechanical comparators available. Advantages and Disadvantages are discussed at the bottom of this article.
What are comparators in metrology?
In Metrology, The comparator is a Precision Instrument, which is used to compare the dimensions of the given component with the actual working standard.
What are electronic comparators?
In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog input terminals and and one binary digital output . The output is ideally.
What is a comparator in metrology?
What are the advantages of optical comparators?
Advantages of Optical Comparator
- High accuracy will be achieved as it has very few moving parts.
- Less weight than other comparators because of fewer parts.
- The parallax error will be avoided.
- Due to the high magnification, very suitable for accurate measurement can be obtained.
What are the two types of comparators?
Types of Comparators: Mechanical comparators 2. Optical comparators 3. Electrical & Electronic comparators 4. Pneumatic comparators 5.
What is a comparators and its types?
Comparators are classified into various kinds, such as electronic, electrical, mechanical, optical, sigma, digital and pneumatic comparators, these are used in various applications. Comparators play an essential role in designing electrical and electronic projects.
What is the basic principle of comparators?
Principle of comparator 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.
How is a horizontal optical comparator used in metrology?
The magnified 2-D image is projected on a screen to assess if the parts dimensions and geometry are within specifications. In a horizontal optical comparator model, light travels horizontally across the stage. This model works well with parts that are held in a fixed location such as screws, castings or transmission shafts.
What is the purpose of an optical comparator?
An optical comparator is a measurement tool used to inspect and measure the dimensions of small manufactured parts.
Which is the best optical comparator for shop floor measurement?
The benchtop and floor model offerings are the industry’s best value and performance solutions for non-contact shop floor measurement. Contour Projectors® – Optical comparators are a mainstay of shop-floor measurement. Their tough construction and big viewing screen make measurements fast and easy.
What can A J & L optical comparator be used for?
Typical applications include milled or turned components, screw machine parts, plastic injection molded parts, threads, grooves, extrusions, large heavy parts and shafts to be held on V blocks or between centers. J&L Metrologies line of optical comparators can be configured to operate manually or under full CNC control.
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