The reflective mirror galvanometer is a sensitive electrical instrument used for detecting very small electric currents through the angular movement of a mirror attached to its moving system. It is intended for physics students, teachers and laboratory technicians who need an enlarged optical indication of small current changes during supervised experiments.
Product Description
The STEMAids Reflective Mirror Galvanometer is designed for laboratory demonstrations in which a small mechanical deflection must be observed at an enlarged scale. A light beam directed at the mirror is reflected onto a separate scale or screen. A small mirror rotation therefore produces a more visible movement of the reflected light spot.
The instrument can demonstrate current detection, galvanometer sensitivity and optical amplification of angular displacement. Its suspension system, coil resistance, current sensitivity, damping method, mirror dimensions, scale arrangement and construction materials must be confirmed from the approved technical specification.
Browse related electrical and electronics laboratory instruments and the wider range of physics laboratory equipment.
Key Features
- Single-beam optical indication: uses one reflected light spot to show galvanometer movement.
- Sensitive current detection: supports observation of small current changes within the confirmed instrument range.
- Optical magnification: converts a small mirror rotation into a larger movement on a distant scale.
- Direction indication: allows the deflection direction to represent current direction when correctly connected.
- Zero-reference observation: supports comparison of deflection against a central or established reference point.
- Hands-on learning: links electric current, magnetic torque and angular displacement.
- Reusable laboratory format: suits demonstrations and supervised advanced physics practicals.
Technical Specifications
|
Specification |
Detail |
|
Product name |
Reflective Mirror Galvanometer |
|
Brand |
STEMAids |
|
Product category |
Electrical Measuring Instrument / Sensitive Galvanometer |
|
Observation capacity |
One reflected light-beam indication |
|
Measured response |
Current-dependent angular deflection |
|
Indication method |
Mirror-reflected light spot |
|
Product-specific certification |
No product-specific certification verified |
What’s Included in the Kit
- Reflective Mirror Galvanometer
- Integrated reflecting mirror
- Electrical connection terminals
- Lamp, scale or optical projection accessories
- Connecting leads and operating instructions
Applications / Uses
- Detecting small electric currents
- Observing current direction through opposite deflections
- Demonstrating optical amplification of angular movement
- Studying galvanometer sensitivity and zero deflection
- Supporting bridge and null-detection experiments where compatible
- Conducting advanced school and undergraduate physics demonstrations
The apparatus can complement suitable electricity and STEM experiment kits.
How to Use the Reflective Mirror Galvanometer
- Place the galvanometer on a stable, vibration-free laboratory bench.
- Position the scale or screen at the distance stated in the instructions.
- Direct a narrow light beam onto the galvanometer mirror.
- Adjust the setup until the reflected spot aligns with the zero reference.
- Keep the circuit power off while connecting the galvanometer.
- Use a suitable series resistance to limit current.
- Energise the circuit briefly and observe the spot displacement.
- Record the direction and magnitude of deflection before disconnecting the circuit.
Safety note: Do not apply current beyond the confirmed galvanometer rating. Protect the mirror and suspension from impact, excessive vibration, strong air movement and direct viewing of an intense light source.
Care & Maintenance
- Keep the instrument covered when it is not in use.
- Do not touch the mirror, suspension or internal moving system.
- Move the apparatus carefully and avoid mechanical shock.
- Store it in a dry, dust-free cabinet away from magnetic interference.
Why Choose STEMAids
STEMAids is the STEM education brand of Eduscope Smart Learning Solutions Private Limited, a New Delhi-based manufacturer. Its catalogue includes physics apparatus, laboratory equipment, STEM kits and educational models. The company supports institutional, tender and export requirements. Buyers can review the complete STEMAids educational equipment catalogue when planning a laboratory installation.
Frequently Asked Questions
What is a reflective mirror galvanometer used for?
It is used to detect small electric currents and show the resulting galvanometer deflection through a reflected light spot.
Why does the galvanometer use a mirror?
The mirror converts a small angular movement into a larger light-spot displacement on a distant scale, making small deflections easier to observe.
Does it directly display current in amperes?
Not necessarily. A mirror galvanometer primarily indicates deflection. Direct current values require a verified calibration or sensitivity constant.
Can it be used as a null detector?
It may be suitable for compatible bridge and comparison experiments because small currents produce visible deflections. The approved application must be confirmed.
Are the lamp and scale included?
The supplied optical accessories are not publicly verified. Confirm whether the lamp, scale, stand and leads are included in the current packing list.
Is it suitable for school laboratories?
It is suitable for supervised senior-secondary and undergraduate demonstrations that require sensitive current detection and optical deflection observation.
