Metrology and Measurements (Diploma)

Linear and angular measurement, gauges, comparators, surface finish and measurement of mechanical quantities.

6 महीनेअवधि 6Chapters29टॉपिक

अभी पूछताछ करें

सिलेबस · पाठ्यक्रम

Download PDF

01Introduction to Metrology 4 टॉपिक

Need of measurement and standards (line, end, wavelength)
Accuracy, precision, sensitivity and resolution
Types of errors and their causes
Calibration and care of instruments

02Linear and Angular Measurement 5 टॉपिक

Vernier caliper, vernier height and depth gauges
Outside and inside micrometers
Slip gauges and wringing
Bevel protractor
Sine bar and angle gauges

03Limits, Fits and Gauges 5 टॉपिक

Tolerance, allowance, deviations
Clearance, transition and interference fits
Hole basis and shaft basis systems
IS 919 / ISO system of limits and fits
Plug, ring and snap gauges, Taylor's principle

04Comparators 4 टॉपिक

Characteristics of a good comparator
Mechanical comparators (dial indicator, Sigma)
Optical and electrical comparators
Pneumatic comparator (Solex)

05Surface Finish and Thread Measurement 5 टॉपिक

Surface texture terms: roughness, waviness, lay
Ra, Rz values and surface roughness testers
Screw thread elements and their measurement
Two-wire and three-wire methods, best wire size
Gear tooth vernier

06Measurement of Mechanical Quantities 6 टॉपिक

Transducers and their classification
Force and torque measurement (load cells, dynamometers)
Pressure measurement
Temperature measurement (thermocouple, RTD, pyrometer)
Strain gauges
Flow and speed measurement

परिचय

आप यह कर पाएँगे

Explain standards of measurement, accuracy, precision and types of errors
Use vernier instruments, micrometers, slip gauges, sine bar and bevel protractor correctly
Apply limits, fits and tolerances and design simple limit gauges
Explain mechanical, optical, electrical and pneumatic comparators
Measure surface finish and screw thread elements
Explain instruments for measuring force, torque, pressure, temperature, strain and flow

यह किसके लिए है

Diploma Mechanical Engineering students of Semester 4 (BTEUP)
Diploma Production and Automobile students
Quality control trainees who want to revise measurement basics

आपको क्या चाहिए

Workshop practice and basic engineering drawing of earlier semesters

सवाल

Will I practise on real instruments?

Yes. Instrument reading practice with vernier, micrometer, slip gauges and sine bar is done along with the theory.

Are numericals on fits and sine bar included?

Yes. Limits and fits, least count, sine bar and best wire size problems are solved.

Is this course based on the BTEUP syllabus?

Yes. The units follow the BTEUP (Board of Technical Education, Uttar Pradesh) diploma syllabus. If your polytechnic follows a different board or a revised scheme, the centre teaches your own syllabus.