D'Arsonval Galvanometer Manufacturer,Supplier and Exporter in India
Product Code : EL-ARTVMCT-1237
Jlab Export is a leading D'Arsonval Galvanometer Manufacturer,and suppliers in India
D'Arsonval Galvanometer (code EL-ARTVMCT-1237) is a sensitive moving-coil galvanometer in a Bakelite case on a special tripod, used to detect and measure very small currents and as a null detector in bridge and potentiometer experiments in school, college and university physics labs. Its centre-zero scale reads 70-0-70 at 3 µA per division, and the coil resistance is 200 Ω. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | D'Arsonval (moving-coil) galvanometer |
| Case | Bakelite |
| Mounting | Special tripod; the scale is held on one leg (listed as 12″) |
| Scale | Graduated 70-0-70 (centre zero); adjustable up and down |
| Coil resistance | 200 Ω |
| Sensitivity | 3 µA per division |
| Current for full deflection | About 210 µA either side of zero (70 divisions x 3 µA, worked from the listed figures) |
| Locking | Lockable arrangement, as listed |
| Also listed as | D Arsonal Galvanometer |
| Quality check | Each galvanometer 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-ARTVMCT-1237 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Galvanometers?
| Model | Construction (as listed) | Coil resistance | Sensitivity |
|---|---|---|---|
| This D'Arsonval galvanometer (EL-ARTVMCT-1237) | Bakelite case on a special tripod; 70-0-70 scale, adjustable up and down; lockable arrangement | 200 Ω | 3 µA per division |
| Ballistic Galvanometer Reflecting | Moving coil suspended by a phosphor bronze strip carrying an optically true mirror of 50 cm focal length; screws and clamp | Not stated | Not stated |
| Spot Reflecting Galvanometer | Self-reflecting, with built-in lamp and scale in a Bakelite case; universal shunt; step-down transformer | 100 Ω or 500 Ω | Not stated |
Choose the D'Arsonval galvanometer when you want a tripod instrument with a stated sensitivity and coil resistance for null detection and small-current work. The ballistic model is the one for charge and capacitance measurements, and the spot reflecting galvanometer reads its light spot on a built-in scale and includes a universal shunt.
What Is the D'Arsonval Galvanometer Used For?
In a D'Arsonval movement a coil sits in the field of a permanent magnet; current through the coil produces a turning torque that is balanced by the restoring torque of its suspension or control springs, so the deflection is proportional to the current. The centre-zero 70-0-70 scale shows both the size and the direction of a small current, which makes the instrument a natural null detector: in Wheatstone and meter bridge experiments and in potentiometer work, the circuit is balanced when the galvanometer shows no deflection. It is also used to measure microampere currents directly, and in class 12 and undergraduate practicals that find a galvanometer’s resistance by the half-deflection method, determine its figure of merit, or convert it into an ammeter with a shunt or into a voltmeter with a series resistance.
Because the coil resistance (200 Ω) and sensitivity (3 µA per division) are listed, students can check their own figure-of-merit result and work out the shunt or series resistance needed for a conversion; one division corresponds to about 0.6 mV across the coil. Set the tripod on a firm, level bench, adjust the scale to a comfortable reading height, and always start with a high series resistance or a shunt in circuit so that an unexpected current does not drive the coil hard against its stop; reduce the protection only as the circuit approaches balance.
What to Specify When Ordering
- Quantity — the minimum order is 10 units; departments often plan one galvanometer per bridge or potentiometer bench.
- Companion resistances — resistance boxes or decade resistance boxes for shunts, series resistances and bridge arms can be quoted with it.
- Construction details — suspension, terminals and dimensions are not in the listing; ask for them if your tender specifies them.
Frequently Asked Questions
What is a D'Arsonval galvanometer used for?
Detecting and measuring very small currents, and acting as the null detector in Wheatstone bridge, meter bridge and potentiometer experiments in physics labs.
What are its resistance and sensitivity?
The coil resistance is 200 Ω and the sensitivity is 3 µA per division on a 70-0-70 scale, so full deflection on either side corresponds to about 210 µA.
Why is the scale centre-zero?
The pointer can move either way, so the scale shows the direction of the current as well as its size. That is exactly what is needed when adjusting a bridge or potentiometer to the balance point.
Can it be converted into an ammeter or voltmeter?
Yes, as a teaching exercise. A low-value shunt in parallel turns it into an ammeter and a high series resistance turns it into a voltmeter; the listed resistance and sensitivity let students calculate the values needed.
How does it differ from the ballistic reflecting galvanometer?
The ballistic model is listed with a phosphor bronze strip suspension carrying a mirror of 50 cm focal length, for charge and capacitance measurements. This instrument has a Bakelite case on a tripod with a directly graduated, adjustable scale.
What details should an export quotation request include?
The quantity, destination country and port or city, delivery terms such as FOB or CIF, packing or labelling needs, and the tender reference where one applies.
Who manufactures this galvanometer?
Jain Laboratory Instruments Pvt Ltd (JLab) builds it at its works in Ambala, Haryana, India, and supplies it directly as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of physics lab equipment in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. This galvanometer is assembled at JLab’s own works and not bought in from a trader, so schools, colleges, dealers and importers buy it factory-direct; each instrument is visually inspected before dispatch and repeat orders come from the same manufacturer. JLab exports worldwide and ships to every region — Mongolia in East Asia, Fiji in Oceania, DR Congo in Central Africa, Latvia in Northern Europe and Lesotho in Southern Africa are a few examples. For institutional purchasing, see the JLab lab tenders page.
Related Galvanometers and Bridge Accessories
- Ballistic Galvanometer Reflecting — a mirror galvanometer on a phosphor bronze suspension for ballistic measurements.
- Spot Reflecting Galvanometer — a self-reflecting galvanometer with built-in lamp, scale and universal shunt.
- Decade Resistance Box — a band switch resistance box for series resistances in conversion experiments.
- Resistance Boxes — dial-type boxes for bridge arms and low-value shunts.
- Crompton Potentiometer — a panel potentiometer for emf and potential difference measurement that needs a null detector.
See the full AC Rectifier Type Voltmeter Moving Coil Type range or all Scientific Instrument products.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), any resistance boxes or accessories you need, and your delivery location through the contact page.
Last updated: 8 October 2026
