Self Inductance Anderson Bridge Manufacturer,Supplier and Exporter in India
Product Code : EL-SI-8065
Jlab Export is a leading Self Inductance Anderson Bridge Manufacturer,and suppliers in India
Self Inductance Anderson Bridge (code EL-SI-8065) is a self-contained Anderson bridge for measuring unknown self-inductance in BSc physics and electrical engineering labs. Housed in a teak wood case, it has a built-in 1 kHz sine-wave source, a null detector with digital display, decade dials for R1, M and C, and four unknown inductances supplied with it for practice. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Measures | Unknown self-inductance (Anderson bridge method) |
| Case | Teak wood, with all parts built in |
| AC source | Built-in sine-wave signal of 1 kHz; two sockets for the AC output |
| Source controls | Amplitude, switch and indicating lamp on the Bakelite board (listed as “The Amplitude of AC switch indicating lamp is provided on the bakelite board”) |
| Detector | Built-in null detector with digital display, for small AC signals at the output |
| Connections | 4 mm sockets; circuit layout spread out on the board for convenient working and clear understanding |
| R1 | Three decade dials: x1, x10 and x100 ohm |
| M | Three decade dials: x10, x100 and x1000 ohm |
| C | Decade dial, x0.01 µF (mfd) |
| R2, R3, R4 | Fixed, 1 kilo-ohm each |
| Unknowns supplied | Four unknown values |
| Quality check | Each bridge is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SI-8065 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with the JLab Owen Bridge?
| Model | Measures | Variable arms | Fixed arms and extras |
|---|---|---|---|
| This Anderson bridge (EL-SI-8065) | Self-inductance | R1: x1, x10, x100 ohm; M: x10, x100, x1000 ohm; C: x0.01 µF | R2, R3, R4 fixed at 1 kilo-ohm; four unknowns supplied |
| Owen Bridge | Inductance | R3: x10, x100, x1000 ohm; C3, C4: x0.1 µF; R2: x100 ohm | R1 internally fixed at 1000 ohm |
Both are listed with a teak wood case, a 1 kHz sine-wave source and a digital null detector. Choose the Anderson bridge when your syllabus names it or when you want the unknowns supplied with the instrument; choose the Owen bridge when the practical calls for Owen’s method, in which inductance is balanced against capacitors.
What Is the Self Inductance Anderson Bridge Used For?
The Anderson bridge is a development of Maxwell’s inductance–capacitance bridge. It measures self-inductance in terms of a standard capacitor and resistors, and because balance can be reached by adjusting resistances with the capacitor kept at a fixed value, it suits a wide range of inductances. It appears in BSc physics and in electrical measurement practicals in engineering colleges and polytechnics, where students find the self-inductance of a coil.
To use it, connect the unknown inductance to the marked 4 mm sockets, switch on the built-in 1 kHz source and adjust its amplitude, then set the R1, M and C dials until the digital null detector shows a minimum. The inductance is then worked out from the dial settings and the fixed 1 kilo-ohm arms using the Anderson balance equation. The four supplied unknowns let a class practise and check results before measuring their own coils; keep the leads short and away from the coils to avoid stray pickup.
What to Specify When Ordering
- Quantity — the minimum order is 10 bridges, supplied individually.
- Mains supply — state your local mains voltage so JLab can confirm the built-in source suits it.
- Other AC bridges — if your lab also runs Owen, Schering or Wien bridge practicals, add them to the same enquiry.
- Extra inductances — ask for inductance boxes or coils if you need unknowns beyond the four supplied.
Frequently Asked Questions
What does the Self Inductance Anderson Bridge measure?
Unknown self-inductance, by the Anderson bridge method, using its built-in 1 kHz source and digital null detector.
Is an external oscillator or detector needed?
No. The sine-wave source and the null detector with digital display are built in; two sockets also give the AC signal out if you want to view it on an oscilloscope.
What adjustable elements does it have?
R1 has three decade dials (x1, x10 and x100 ohm), M has three decade dials (x10, x100 and x1000 ohm) and C is a decade dial in steps of 0.01 µF. R2, R3 and R4 are fixed at 1 kilo-ohm.
Are unknown inductances included?
Yes. Four unknown values are supplied with the instrument for practice measurements.
How does it differ from the Owen bridge?
Both measure inductance with a built-in 1 kHz source and digital detector. The Anderson bridge balances with resistance dials R1 and M against one capacitor dial, while the Owen bridge uses two capacitor dials (C3, C4); see the comparison table above.
What does an export quotation need?
The quantity, destination country and port or city, the delivery terms you prefer (for example FOB or CIF), packing or labelling needs and any tender reference.
Who manufactures it?
JLab (Jain Laboratory Instruments Pvt Ltd) builds the bridge at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an electronic lab instruments manufacturer in India, incorporated in 2017 and located on Hargolal Road, Ambala, Haryana. The Anderson bridge is built in JLab’s own works, not bought from a trader, so universities, engineering colleges, dealers and importers buy from the maker directly; each instrument is visually inspected before dispatch, and repeat orders are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Bulgaria in Eastern Europe, Samoa in Oceania, Bangladesh in South Asia, Namibia in Southern Africa and Laos in Southeast Asia. Tender buyers can refer to the JLab lab tenders page.
Related AC Bridges and Accessories
- Owen Bridge — the other JLab inductance bridge, compared above.
- Schering Bridge — a capacitance bridge in a teak wood case with the same kind of built-in 1 kHz sine-wave source.
- Three Dial Inductance Box — a dial-type inductance box, also listed in two-, four- and five-dial versions, for extra known inductances.
- Self and Mutual Inductance Coils — a primary and secondary coil pair for self- and mutual-induction experiments.
- Oscilloscope — a single-beam solid-state oscilloscope for viewing the source waveform from the output sockets.
Browse the Scientific Instrument range or the Indian Instruments section.
Request a Quote
JLab quotes for this bridge directly as its manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), your mains voltage, any other bridges or inductances you need and your delivery location through the contact page.
Last updated: 8 October 2026
