Measurement of Inductance by Hay's Bridge Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12326
Indian Lab Suppliers supplies the Measurement of Inductance by Hay's Bridge (Product ID: 12326) as part of its electronics engineering lab equipment range. It measures unknown inductances with a Hay’s bridge powered by a built-in 1 kHz oscillator.
Quick Answer
Hay’s bridge balances an inductor against a capacitor in series with a resistor and is used mainly for coils with a high Q factor. The board supplies a 1 kHz sine-wave oscillator (0-15 V p-p), a Hay’s bridge with marked arm values, a 10-turn potentiometer to set the required resistance and a balancing potentiometer. Balance is found by ear: an audio amplifier and speaker act as the null detector, and the tone falls to a minimum at balance. Three unknown inductors are selected by a band switch, and their values are calculated from the arm values. An internal ±12 V DC, 100 mA supply powers the electronics.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Measurement of unknown inductance by Hay’s bridge |
| Source | 1 kHz sine-wave oscillator, 0-15 V p-p |
| Null detector | Audio amplifier and speaker |
| Unknowns | Three inductors, band-switch selected |
| Controls | 10-turn resistance potentiometer; balancing potentiometer |
| Supply | ±12 V DC at 100 mA, IC regulated, internal |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
Where This Is Used
Used in electrical-measurement and AC-bridge practicals. Related: Hay's Bridge Trainer (Product ID: 12111) and Measurement of Inductance and Capacitance by Maxwell's L/C Bridge with power supply and Oscillator (C.R.) (Product ID: 12243). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
Which inductors suit Hay’s bridge?
Inductors with a high Q factor.
How is balance detected?
By ear, as a minimum tone from the built-in amplifier and speaker.
How many unknown inductors are provided?
Three, selected by a band switch.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Electronics Lab Equipment
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