Sonometer Apparatus

Sonometer Apparatus | Manufactured by Samtech Instruments

The Sonometer Apparatus is a fundamental physics laboratory instrument used to study the relationship between frequency, tension, and length of a vibrating string. It is widely used to demonstrate the laws of vibrating strings and to understand sound wave behaviour.

Ideal for school physics laboratories, STEM education, and classroom demonstrations, this apparatus provides hands‑on learning of acoustics and wave mechanics.

What is a Sonometer Apparatus?

The Sonometer consists of a long hollow wooden box with a stretched metal wire, supported by movable bridges. The wire is connected to a pulley system with weights, allowing the tension to be adjusted.

When the wire is plucked, it vibrates and produces sound. By changing the length, tension, or mass per unit length, students can study how frequency changes.

Key Features

🎵 Demonstrates laws of vibrating strings
📏 Adjustable wire length using movable bridges
⚙️ Pulley system for tension variation
🪵 Durable wooden resonance box
🔬 Clear sound resonance demonstration
🏫 Ideal for physics labs & classrooms

Educational Applications

Frequency & Vibration Study

Understand the relation between length, tension, and frequency

Laws of Vibrating Strings

Verify fundamental laws of sound

Resonance Demonstration

Observe resonance conditions using tuning forks

Sound Wave Experiments

Study the production and propagation of sound

STEM Learning

Hands‑on acoustics and wave mechanics

Typical Components

• Wooden resonance box

• Steel wire stretched over the box

• Two movable bridges

• Pulley with weight hanger

• Scale for length measurement

• Tuning fork (optional for experiments)

Specifications

• Product: Sonometer Apparatus

• Material: Wooden box with metal wire

• Type: Sound & frequency demonstration instrument

• Operation: Manual (string vibration)

• Use: Physics laboratory

• Application: Acoustics & wave experiments

Ideal For

• School physics laboratories

• STEM labs

• Sound & wave experiments

• Classroom demonstrations

• Science exhibitions

• Educational institutions

FAQ

Q1: What does the Sonometer demonstrate?
A: It demonstrates the relationship between frequency, tension, and length of a vibrating string.

Q2: What concept does it teach?
A: Laws of vibrating strings and sound wave behavior.

Q3: How is tension varied?
A: Using a pulley and hanging weights.

Q4: What is the role of movable bridges?
A: To change the vibrating length of the wire.

Q5: Is it suitable for school labs?
A: Yes, ideal for physics and STEM education.

Q6: Who manufactures the Sonometer Apparatus in India?
A: The Sonometer Apparatus is manufactured by Samtech Instruments, Ambala Cantt, India.

Conclusion

The Sonometer Apparatus by Samtech Instruments is an essential physics teaching aid for understanding sound, vibration, and frequency relationships. With its simple design and practical functionality, it is perfect for school labs, STEM learning, and acoustic experiments.