Sonometer 3 Wire Pattern Manufacturer,Supplier and Exporter in Africa
Product Code : DA-VAW-11277
Quick Answer: The Sonometer 3 Wire Pattern is a hollow wooden sounding box with three wires stretched over fixed bridges 72 cm apart and mm scales between them. One wire is tensioned through a spring balance reading to 100 N, one passes over a pulley for loading, and the third is set by a wrest-pin for comparison.
Last updated: October 2026
Key Features
- Hollow wooden sounding box with scales divided in mm
- Fixed bridges 72 cm apart
- Spring balance reading to 100 N on one wire, finely adjusted by wing-nut
- Second wire passes over a pulley and can be loaded as desired
- Third wire for comparison, tensioned by a wrest-pin
- Supplied with three movable bridges, wrest-pin key and 1.5 m steel wires of 22, 24 and 26 SWG
Technical Specifications
| Specification | Value |
|---|---|
| Number of wires | Three |
| Distance between fixed bridges | 72 cm |
| Spring balance | Reading to 100 N x5 N |
| Steel wires supplied | 1.5 m, 22, 24 and 26 SWG |
| Dimensions (L x W x H) | 129 x 13 x 11 cm |
About This Product
The sonometer lets three stretched wires be compared on one sounding box: one under a tension measured on the spring balance, one loaded over a pulley and one set with a wrest-pin. The three movable bridges change the vibrating length, which can be read from the mm scales between the fixed bridges. A pack of replacement steel and brass wires, each in 22, 24 and 26 SWG, is sold separately.
Frequently Asked Questions
Q1. How is wire tension measured on the Sonometer 3 Wire Pattern?
One wire is fitted with a spring balance reading to 100 N, and the tension can be finely adjusted by a wing-nut. Another wire passes over a pulley and can be loaded as desired.
Q2. Which wires are supplied?
A set of steel wires 1.5 m long in 22, 24 and 26 SWG. Replacement packs of steel and brass wires in the same gauges are sold separately.
Q3. What is the distance between the fixed bridges?
The fixed bridges are 72 cm apart.
Related: Vibrations and Waves range, Large Demonstration Tuning Fork, Kundt’s Resonance Tube.
For a quotation on the Sonometer 3 Wire Pattern, contact Didactic Africa.
