贬别颈驳丑迟:听14听肠尘听
Width: 100 cm聽
顿别辫迟丑:听4听肠尘听
Materials: Wood, Brass, Leather聽
Manufacturer: Andrew H Baird聽聽
Date: c1900聽
Dr. Richard Fraser, Director of the Maude Abbott Medical聽Museum,聽provides a brief description of the function and/or use of the equipment.
This instrument (also known as an聽inductorium) consists of a graduated boxwood scale on a polished mahogany base that folds in two (when unfolded,聽it聽measures聽1 meter聽in length). It was used to provide a variable amplitude electrical stimulus聽for聽studying聽muscle or other excitable tissue. On the base are two cylindrical coils. The primary one聽(P)聽was聽firmly attached聽to聽the base聽and was connected by a switch to a power source聽(PS).聽A current flowing through the primary coil induced a voltage in the secondary coil聽(S). Sliding the moveable secondary coil further away from the primary聽one聽generated a decreased amplitude stimulus.聽
