Nvis Tech

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2026-07-12 11:52:22 -

Sumpner's Test in Transformer: What It Is, How It Works, and Why It Still Matters
Sumpner's test, widely known as the back to back test, is a method used to determine the efficiency, voltage regulation, and temperature rise of a transformer under conditions that closely mirror actual full load operation. Developed by British engineer William Edward Sumpner in 1891, the test was created to solve a practical problem in early transformer manufacturing: how do you test a...

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2026-07-03 06:15:44 -

Swinburne Test Circuit Diagram and Working Explained
Determining the efficiency of a DC machine is an important part of electrical engineering. While direct loading tests provide accurate results, they require large amounts of power and heavy loading equipment. To overcome these challenges, engineers often use indirect testing methods. One of the most widely used methods is the Swinburne test. It allows engineers and students to estimate...

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2026-05-20 09:29:38 -

How BMS Technology Enhances Battery Performance and Lifespan
Batteries are everywhere today. From the electric vehicle you see on the road to the laptop sitting on your desk, every battery-powered device depends on one critical component that most people never think about. That component is the Battery Management System, commonly known as BMS. If you have ever wondered why some batteries last for years while others start degrading within months,...

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2026-05-04 12:37:38 -

How Newton’s Ring Apparatus Demonstrates Interference of Light
The concept of light behaving as a wave becomes strikingly clear through one of the most elegant experiments in optics, the Newton’s rings experiment. Using a Newton's ring apparatus (also referred to as a Newton's ring experiment apparatus), this setup visually demonstrates the phenomenon of interference of light through the formation of concentric circular fringes. These rings...

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2026-04-20 10:51:53 -

How Digital IC Testers Improve Accuracy in Fault Detection
In modern electronics manufacturing and repair, precision is everything. A minor fault in an integrated circuit (IC) can lead to complete system failure, costly recalls, or unreliable performance. This is where a digital IC tester becomes an essential tool. Designed to identify faults quickly and accurately, these testers have transformed how engineers, technicians, and manufacturers...

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2026-04-08 12:21:33 -

Digital Trainer Kit: A Complete Guide for Electronics Students and Engineers
In electronics education, understanding concepts is important but applying them is what truly builds expertise. Many students struggle with digital electronics because it involves abstract logic, binary systems, and circuit behavior that can be hard to visualize. This is where a digital trainer kit becomes extremely valuable. A digital IC trainer allows learners to move beyond textbooks...

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2026-03-19 07:00:50 -

How to Perform De Sauty Bridge Experiment in Lab
Understanding how capacitors behave in electrical circuits is a foundational concept in electronics and electrical engineering. One of the most classic and reliable methods to compare capacitance values is through the De Sauty Bridge experiment. Whether you're a student in a physics lab or an engineering learner, this experiment helps you bridge the gap between theory and practical...

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2026-03-07 05:49:09 -

What is a DC Regulated Power Supply? Uses, and Benefits
A DC regulated power supply is an essential electronic device used to provide a stable and constant DC voltage output regardless of changes in input voltage or load conditions. It is widely used in electronics laboratories, engineering experiments, testing environments, and industrial applications where accurate and reliable power is required. Understanding how a DC regulated power supply works...

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2026-02-27 07:47:40 -

AC Series Motor: Working Principle, Diagram & Applications
An AC series motor is a type of electric motor that can operate on alternating current (AC) supply while maintaining characteristics similar to a DC series motor. Because of its high starting torque and compact design, it is widely used in household appliances and power tools. If you are an electrical engineering student, technician, or someone interested in motor technology,...

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2026-02-12 08:01:23 -

What Is Travelling Microscope? Principle, Working Guide
In physics and engineering laboratories, precision measurement is critical. One such highly accurate instrument used for linear and angular measurements is the travelling microscope. If you’ve ever wondered what a travelling microscope is and how professionals take accurate travelling microscope reading, this guide explains everything in simple terms. Whether you are a student, lab...

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2026-01-06 13:00:24 -

Digital Oscilloscope Price Range: What Do You Get at Each Budget?
When buying a test and measurement instrument, oscilloscope price is often the first factor engineers, students, and labs look at. Digital oscilloscopes are available across a wide range of budgets, from affordable entry-level units to high-end professional systems. But what exactly do you get at each digital oscilloscope price point, and how do you know which one is right for your...

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2026-01-06 12:58:35 -

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