Advanced Technocracy Inc.
Ambala, Haryana
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Mechanical Vibrations

Simple pendulum, compound pendulum, bifilar and trifilar suspension apparatus are the products offered under vibrations. These products are designed with great precisions and accuracy.


Simple Pendulum

Features

  • Low cost, effective teaching
  • Self-contained
  • Wall mounted
  • Determination of acceleration due to
    gravity
  • Verification of equation of motion
  • Three year warranty

 

Range of Experiments


  1. To determine the gravitational acceleration 'g'
  2. To show that the periodic time of swing is proportional to the square root of the pendulum length

 

Description


A simple pendulum consisting of a cord with a ring at the top end and a sliding heavy bobweight. The pendulum oscillates on a knife edge bracket attached to the wall at a convenient height.

A stopwatch and rule are supplied to time the swing of the pendulum and to measure its length.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught.

Compound Pendulum

Features

  • Low cost, effective teaching
  • Self-contained
  • Wall mounted
  • Simple pendulum included
  • Determination of acceleration due to
    gravity
  • Introduction to radius of gyration
  • Three year warranty

 

Range of Experiments


  1. To determine the radius of gyration of a compound pendulum about its centre of gravity
  2. Investigate the effect of fulcrum position
  3. To find the acceleration due to gravity 'g'
  4. To verify the equation of motion for a compound pendulum

 

Description


The metre long bar fitted with a moveable bobweight can be suspended from seven different positions along its length. A simple cord pendulum with adjustable bobweight is included. This enables the radius of gyration of the compound pendulum and the acceleration due to gravity to be determined

A stop watch and ruler are provided.This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught.

Bifilar/Trifilar Suspension Apparatus

Bifilar/Trifilar Suspension Apparatus
Bifilar/Trifilar Suspension Apparatus

Features

  • Low cost, effective teaching
  • Self-contained
  • Wall mounted
  • Determination of moment of inertia
  • Radius of gyration for bar, ring and cylinder
  • Three year warranty

 

Range of experiments


  1. To determine experimentally the moment of inertia and radius of gyration of a rectangular bar, ring and cylinder.
  2. Comparison with theoretical results

 

Description


A cast iron wall bracket supports wire cables for a bifilar or trifilar suspension system. No drill chucks or cumbersome fixing devices are used, so that calculations are straight forward. The moment of inertia and radius of gyration of a heavy body can be found by timing its oscillation.

A stopwatch and rule are supplied. Three bodies are provided; rectangular bar, ring and cylinder.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught.

Vibration Of A Spiral Spring

Vibration Of A Spiral Spring
Vibration Of A Spiral Spring

Features

  • Low cost, effective teaching.
  • Self-contained.
  • Wall mounted.
  • Measurement of oscillation frequency.
  • Demonstration of Hooke's law for torsional spring.
  • Comparison with theoretical predictions.
  • Three year warranty.

 

Range of Experiments


  1. To compare the experimental stiffness of a plane spiral spring with theoretical predictions.
  2. To observe if the spring exhibits a linear elastic behavior.

 

Description


Spiral springs are used to provide a restoring torque to an oscillating shaft when it rotates through an angular displacement. They exhibit similar stiffness characteristics to linear springs, except that the effect is one of torque rather than force. The stiffness of a spiral spring depends on its physical dimensions and the rigidity of the steel strip from which it is formed. The student can easily calculate the theoretical simple harmonic motion of the spring, and compare the value with simple experimental results. A range of moments of inertia of the oscillating part is provided.

The wall mounted unit consists of a spiral spring coiled from a length of 25 x 0.6mm steel strip to give an effective length of 2 metres, attached to a shaft mounted in ball bearings. A cord carrying a weight hanger is wound round the shaft, and a load applied to twist the spring. Spring deflection is measured with an attached 360° scale. A cord and weight hanger are supplied. A set of discs which can be attached to the shaft change the frequency of oscillation, measured by the stop watch provided.

This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results. 

 

Advanced Technocracy Inc.

Mr. Kunal Chopra (CEO)
Atico House 5309, Grain Market, Near B.D School
Ambala - 133001
Haryana, India
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