Portable Wheatstone Bridge
The Portable Wheatstone Bridge Apparatus is a device used in electrical engineering to measure resistance. It consists of a circuit with four resistive arms, two of which contain the unknown resistance being measured. The device can be calibrated for precision and is designed for portability. It can measure resistances ranging from a few ohms to several megohms, making it a useful tool for fieldwork and diagnosing electrical problems.
₹1,400.00 ₹3,500.00
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A Wheatstone Bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one of which contains the unknown resistance. It uses the Murray or overlay loop circuit for testing purposes.
Key Specifications
- Resistance Range: 0.01 ohms to 11.11 mega ohms
- Constant Coil Accuracy: ±1%
- Manganin Coil Accuracy: ±0.2%
- Portable Design: Built-in sensitive galvanometer and dry battery
- Series Arm: 4 decades of 10×1, 10×10, 10×100, and 10×1000 ohms
- Range Multipliers: Rotary switch with 7 ranges – X1000, X100, X10, X1, X0.1, X0.01, X0.001
- Battery: Built-in 4.5V dry battery with external battery option for high resistance measurement
- Galvanometer: Model MO-65 with sensitivity of 10 microamperes per division
- Push Buttons: Two push buttons for battery and galvanometer control
- Accuracy: Series and ratio coils calibrated to better than 0.05%, giving overall accuracy better than ±0.1%
Features
- Robust and durable construction
- Long service life
- High accuracy in resistance measurement and fault detection
- Sturdy design for reliable laboratory use
- High-quality components for precise results
- Suitable for continuous laboratory and field applications
The Portable Wheatstone Bridge is a reliable and versatile instrument for precise resistance measurement and fault location. Its portable design, rugged build, and excellent performance make it an essential tool for physics laboratories, electrical testing, and research applications.
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