The Kelvin's Bridge Trainer is a specialized educational and testing instrument designed to precisely demonstrate and facilitate the measurement of low resistance using the Kelvin Double Bridge principle. This self-contained training unit is ideal for engineering laboratories and institutions focusing on advanced electrical measurement techniques. Equipped with a dedicated trainer board for each bridge, it operates on a standard 230V, 50Hz AC supply and features an integrated IC-based DC regulated power supply with short circuit protection and LED indicators for safe and efficient operation. The device includes a built-in 1KHz oscillator and an imbalance amplifier to ensure accurate signal analysis. For enhanced sensitivity, a headphone set is provided to detect minimal imbalances during resistance measurement. The Kelvin's Bridge Trainer incorporates variable arms using precision Tenturn potentiometers (R1 and R2, each 500Ω with dials) and multiple fixed precision resistors (Rm) ranging from 1Ω to 1MΩ to accommodate various measurement ranges. The unknown resistor Rx can be connected for testing. The front panel is intelligibly designed with multi-colored test points for observing waveforms and voltages at critical stages of the circuit, aiding detailed analysis and troubleshooting. Complete with a comprehensive manual that includes theoretical background and operational guidance, this trainer is an indispensable tool for hands-on learning and practical demonstrations of AC bridge measurement techniques, specifically tailored for Kelvin's Bridge configurations.
Key Features
| Features | Description |
|---|---|
| Dedicated Trainer Board | Separate trainer board for Kelvin's Bridge to facilitate focused learning. |
| Self-contained Unit | Stand-alone design requiring only 230V, 50Hz AC supply for operation. |
| Integrated DC Power Supply | Built-in IC-based DC regulated supply with short circuit protection and LED ON indication. |
| Built-in 1KHz Oscillator | Provides stable AC signal essential for precise resistance measurement. |
| Imbalance Amplifier | Enhances signal detection for accurate identification of bridge balance. |
| Headphone Set | Allows sensitive detection of imbalance signals in the circuit. |
| Variable Arms (R1 & R2) | 500Ω Tenturn potentiometers with dials for precise adjustments. |
| Multiplier Resistors (Rm) | High accuracy fixed resistors: 1Ω, 10Ω, 100Ω, 1KΩ, 10KΩ, 100KΩ, 1MΩ for broad measurement range. |
| Multi-coloured Test Points | Strategically placed to observe waveforms and voltages for diagnostic purposes. |
| Comprehensive Manual | Includes theoretical explanation and detailed operational instructions. |
| Elegant Cabinet Design | Robust enclosure with intelligently laid out circuit panel for ease of use. |
| Attributes | Description |
|---|---|
| Supply Voltage | 230V, 50Hz AC |
| DC Power Supply Type | IC-based regulated with short circuit protection |
| Oscillator Frequency | 1KHz |
| R1 and R2 (Variable Arms) | 500Ω Tenturn potentiometers with dials |
| Multiplier Resistors (Rm) Values | 1Ω, 10Ω, 100Ω, 1KΩ, 10KΩ, 100KΩ, 1MΩ fixed resistors |
| Unknown Resistor (Rx) | User-provided unknown resistors |
| Built-in Components | Imbalance amplifier, headphone jack for sensitive detection |
| Test Points | Multi-coloured for easy waveform and voltage observation |
| Physical Design | Robust cabinet with front panel circuit layout |
| Included Accessories | Set of patch cords, headphones, comprehensive manual |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
The built-in 1KHz oscillator provides a stable and consistent AC excitation signal necessary for precise balancing of the Kelvin's Bridge, reducing errors caused by signal fluctuations and improving measurement accuracy.
The integrated IC-based DC regulated power supply ensures stable voltage with short circuit protection, enhancing safety during operation and maintaining consistent performance for sensitive circuit components.
The 500Ω Tenturn potentiometers with dials allow precise manual adjustment of the bridge arms, enabling fine tuning to achieve an exact balance point for accurate measurement of unknown resistors.
They provide clear, visual access points at various stages of the circuit, allowing users to observe waveforms and voltages with external instruments like oscilloscopes, facilitating detailed analysis and troubleshooting.
Yes, with its range of multiplier fixed resistors from 1Ω up to 1MΩ and precise variable arms, the trainer is suitable for accurately measuring a wide range of low to moderately high resistances.
Brand: adtron
Country Of Origin: India
SALIENT FEATURES:
Dedicated trainer board for each bridge.
Completely self - contained stand - alone unit.
Demonstrates the principle and working of AC bridges for measurement of resistance.
Supply required 230V, 50 Hz AC.
Built - in IC based DC regulated power supply with short circuit protection and LED indication for supply “ON”.
Built - in 1KHz oscillator.
Built - in imbalance amplifier.
Head - phone set for sensitive detection.
Built - in variable arms and multiplier as below
R1 = 500E Tenturn pot with dial
R2 = 500E Tenturn pot with dial
Rm = 1E, 10E, 100E, 1K, 10K, 100K, 1M fixed resistors
Rx = Unknown resistors
Multi - coloured test points at various stages in the circuit to observe waveforms and voltages.
Set of patch cords.
Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.
Strongly supported by a comprehensive manual complete with theory and operating details
