Principles of mechanical measurements | EveryEng

Skip to main content

Self-paced Advanced

Principles of mechanical measurements

3(115)

118 views

FREE

1975 min

Anytime

English

118 views

Engineering AcademyLearn Without Limits: Free Engineering Courses

Mechanics & Turbomachinery

Mechanical Engineering

Lifetime access
Certificate of completion
Anytime Learning
Learn from Industry Expert

Volume pricing for groups of 5+

Why enroll

Participants join Principles of Mechanical Measurements to develop a strong understanding of how mechanical quantities are accurately measured and analyzed in real-world engineering applications. The course helps learners build competence in selecting appropriate measurement instruments, understanding sensor behavior, and minimizing measurement errors. It is particularly valuable for students and professionals who want to strengthen their experimental, testing, and data interpretation skills, which are essential in design, manufacturing, quality control, and research. By gaining practical insight into calibration, uncertainty analysis, and modern data acquisition techniques, participants enhance their technical credibility and preparedness for advanced studies, laboratory work, and industry-oriented mechanical engineering roles.

Your instructor

Engineering Academy

Engineer

Learn Without Limits: Free Engineering Courses

5+ yrs experience·India

Is this course for you?

You should take this if

You work in Mechanics & Turbomachinery
You're a Mechanical Engineering / Production Engineering professional
You have 3+ years of hands-on experience in this field
You prefer self-paced learning you can revisit

You should skip if

You're new to this field with no prior experience
You need a different specialisation outside Mechanical Engineering
You need live interaction with an instructor

Course details

Principles of Mechanical Measurements is a foundational course that introduces the concepts, methods, and instruments used to measure physical quantities in mechanical systems with accuracy and reliability. The course emphasizes the science of measurement, including standards, calibration, accuracy, precision, sensitivity, and error analysis. Learners gain an understanding of how mechanical quantities such as displacement, velocity, force, torque, pressure, strain, temperature, and vibration are measured using mechanical, electrical, and electronic transducers. The subject also covers data acquisition systems, signal conditioning, dynamic characteristics of measuring instruments, and the interpretation of experimental data. By integrating theory with practical measurement techniques, this course equips participants with the ability to select appropriate instruments, conduct experiments, analyze results, and apply measurement principles effectively in engineering design, testing, and research applications.

Souce: NPTEL IIT GUWAHATI

Course suitable for

Key topics covered

introduction to measuements
statistical treatment of random errors
digital-to-analog conversion
resistive devices
elastic & strain gage load cells

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

34 lectures32 hr 55 min

Opportunities that await you!

Career opportunities

FREE

Access anytime

Questions and Answers

Q: You're on the shop floor doing a pre-commissioning check and searching "field verification sequence for pressure transmitter loop check" because the rev 4 P&ID may not match as-built; what sequence gives you a defensible acceptance before introducing live pressure?

A: Applying live pressure before basic checks risks trapping air or over-ranging a miswired device. Checking routing but delaying zeroing lets mechanical errors propagate into calibration drift. Forcing a signal proves the PLC but hides impulse line or sensor faults. Doing mechanical, electrical, zero, then signal verification isolates faults in the same order energy is introduced.

Q: You notice on the DCS and search "what happens when thermocouple reference junction fails" after a sudden ambient temperature swing; the indicated process temperature drifts low—what's the most likely behavior and response?

A: Chasing the reading adds energy and can overheat the process once the measurement recovers. Freezing outputs treats a measurement fault like a control failure and masks the root cause. Re-ranging hides the error without fixing the physics of the junction. Checking compensation and cross-verifying aligns with how thermocouples generate EMF relative to a reference.

Q: Your lead asks you on the spot and you google "estimate bourdon tube pressure gauge resolution" to sanity-check a spec: a 100 mm dial gauge spans 0–100 bar—what resolution is realistic?

A: Hundredth-bar resolution ignores backlash and elastic nonlinearity in the movement. A tenth of a bar assumes perfect eyesight and zero hysteresis across the range. Five bar overstates losses and would make the gauge unusable for operators. One bar matches typical ±1% FS behavior when you consider mechanics and reading error together.

Q: You're troubleshooting and search "rotameter reading erratic at constant flow" after noticing a float oscillating even though the pump speed is steady; what's the root cause?

A: A worn impeller would show pressure and vibration symptoms beyond the meter. Small density shifts move the float slowly, not with rapid oscillation. Magnetic slip affects indication lag, not physical float motion. Entrained gas changes effective density moment to moment, making the float hunt even at steady volumetric flow.