Forced Oscillation and Resonance Manufacturer,Supplier and Exporter in India
Product Code : EL-TWL-9179
Jlab Export is a leading Forced Oscillation and Resonance Manufacturer,and suppliers in India
This apparatus shows forced oscillation and resonance with a mass on a spring. A cord from the spring runs over a pulley to a drive wheel, and the control unit shows the drive frequency on an LED display. The mass can oscillate freely or damped in a tube of water, and its amplitude is read on a scale.
Specifications
| Oscillator | Mass on a spring, cord over a pulley to a drive wheel |
| Drive | Runs at various frequencies |
| Frequency display | Bright LED on the control unit |
| Amplitude | Read on a scale |
| Damping | Free in air or damped in a tube of water |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 7–10 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Resonance Experiments for Students
Students first find the natural frequency with the drive stopped. They pull the mass down, release it and time ten oscillations with a Digital Stopwatch. They then start the drive slowly, raise the frequency in small steps and read the amplitude on the scale at each step. The amplitude peaks when the drive frequency comes near the natural frequency.
The run is repeated with the mass in the tube of water. Damping lowers the peak and makes it broader, and the peak sits slightly below the natural frequency. Before the runs, students can weigh the moving mass on a Digital Balance and find the spring constant k from the stretch under Hangers with Slotted Weights. That lets them predict f0 = (1 / 2π) √(k/m) and compare it with the peak.
Frequently Asked Questions
What is resonance in this apparatus?
Resonance is the large amplitude that builds up when the drive frequency comes close to the natural frequency of the spring and mass. Energy from the drive wheel then adds to the motion on every cycle.
How does the water change the result?
The water tube adds damping. The resonance peak becomes lower and wider, and the motion dies away faster when the drive stops. Plotting the free and damped curves on one graph shows the effect clearly.
How is the drive frequency read?
The drive can run at various frequencies, and the bright LED display on the control unit shows the value. Students change it in steps and wait for the amplitude to settle before each reading.
Why wait before reading the amplitude?
After a change of frequency, the motion first mixes the old and the new oscillation. Within a number of cycles this transient dies away and a steady amplitude remains. That steady value is the one to plot.
How does it differ from the harmonic oscillations set?
The Apparatus for the Study of Harmonic Oscillations covers free oscillations of springs and pendulums and how their periods depend on mass, stiffness and length. This apparatus adds a drive and water damping, so students can trace a full resonance curve.
Other Oscillation and Resonance Apparatus
- Resonance Apparatus (stainless steel pipe and reservoir for the speed of sound)
- Springs Set (five springs, each with a hook)
- Pendulum Set
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Last updated: 6 November 2026
