The Anderson's Bridge Trainer is a specialized educational instrument designed for electrical engineering laboratories and training centers to demonstrate the principle and operation of AC bridges in the precise measurement of inductance with respect to capacitance and resistance. This fully self-contained unit houses dedicated trainer boards for each amplifier circuit, facilitating hands-on learning and experimentation. It features a built-in IC-based DC regulated power supply with short circuit protection and LED indication for power status, ensuring safe and reliable operation on a 230V, 50Hz AC supply. The trainer includes an integrated 1kHz oscillator and an imbalance amplifier to enable accurate detection of bridge imbalances, along with a headphone set for sensitive audio detection. Controlled and precise adjustments are made possible through variable arms and multipliers, such as ten-turn potentiometers for resistance and variable capacitors, and fixed resistors in multiple values for quadrature and potentiometer arms. The concise 10” x 13” panel is fortified with multi-colored test points at key circuit stages to allow waveform and voltage observation via external devices, greatly enhancing the learning experience. The set comes complete with patch cords and is housed in an elegant, sturdy metal cabinet featuring a well-organized front panel layout for intuitive operation. Comprehensive instructional materials provide theoretical background and step-by-step operating procedures, making this trainer an indispensable tool for professional training in AC bridge measurement techniques.
Key Features
| Features | Description |
|---|---|
| Dedicated Trainer Boards | Separate trainer board for each amplifier circuit enabling modular learning. |
| Self-Contained Unit | Completely standalone device requiring only 230V AC supply. |
| Measurement Principle | Demonstrates AC bridge technique for inductance measurement using capacitance and resistance. |
| Power Supply | Built-in IC based DC regulated power supply with short circuit protection and LED power indicator. |
| Frequency Oscillator | Integrated 1kHz signal oscillator for bridge excitation. |
| Imbalance Amplifier | Incorporated amplifier for sensitive detection of bridge unbalance conditions. |
| Detection Method | Includes headphone set for sensitive audio detection of null or imbalance. |
| Variable Arms and Multipliers | Ten-turn potentiometers and rotary switches for resistive arms (r, R, S) and capacitive arm (C) with specified ranges. |
| Size and Build | Compact 10” x 13” panel with multi-colored test points and sturdy metal cabinet. |
| Instruction Manual | Comprehensive manual covering theory and operational guidelines effectively supporting practical learning. |
| Attributes | Description |
|---|---|
| Operating Voltage | 230V AC, 50Hz |
| Panel Dimensions | 10 inch x 13 inch |
| Built-in Oscillator Frequency | 1kHz |
| Power Supply Type | IC based DC regulated with short circuit protection |
| Resistance Arms | r = 100Ω ten-turn pot + 0.1x10 rotary switch; R = 1KΩ + 10KΩ ten-turn pots; S = 100Ω + 1KΩ ten-turn pots |
| Capacitive Arm | C = 0.01μF x 10 rotary switch |
| Fixed Resistors | Q = 1Ω, 10Ω, 100Ω, 1KΩ; P = 1Ω, 10Ω, 100Ω, 1KΩ |
| Detection Equipment | Headphone set included for sensitive signal detection |
| Test Points | Multi-colored for waveform and voltage measurement at various circuit stages |
*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 imbalance amplifier amplifies minute unbalance signals in the bridge circuit, allowing precise detection of the null point which is critical for accurate inductance measurement in the Anderson's Bridge Trainer.
The multi-colored test points enable users to conveniently observe waveforms and voltage levels at different nodes of the circuit using external measuring devices such as oscilloscopes, enhancing the analysis and understanding of bridge operation.
The device is designed specifically for a 230V, 50Hz AC mains supply; operation outside this voltage or frequency may impact performance and safety, therefore it should be used within the specified electrical parameters.
These precision adjustable components allow fine calibration of the bridge arms (resistance and capacitance), enabling users to accurately balance the bridge circuit and thereby improve the effectiveness of inductance measurement demonstrations.
While the headphone set provides sensitive and direct audio detection of imbalance signals, users can optionally connect other sensitive equipment like headphone amplifiers or voltmeters at test points to detect and analyze the null condition.
Brand: adtron
Country Of Origin: India
SALIENT FEATURES:
Dedicated trainer board for each amplifier circuit.
Completely self - contained stand - alone unit.
Demonstrates the principle and working of AC bridges for measurement of Inductance in terms of capacitance & 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.
r = 100E Tenturn pot with dial + 0.1 x 10 rotary switch
C = 0.01uF x 10 rotary switch
R = 1K + 10K Ten turn pots with dial
S = 100E + 1K Ten turn pots with dial
Q = 1E, 10E, 100E, 1K fixed resistors
P = 1E, 10E, 100E, 1K fixed resistors
Panel Size : 10” x 13”.
Multi - coloured test points at various stages in the circuit to observe waveforms and voltages.
Set of required patch cords.
Housed in an elegant metal cabinet with a well spread intelligently designed circuit layout on the front panel.
Strongly supported by a comprehensive instruction manual complete with theory and operating details.
Built - in DC regulated power supply with short circuit protection and LED indication for supply “ON” to work on 230V AC Mains.
