Ramsey-Coote Instruments, 49 Ardoyne St., Black Rock, S.9., Victoria, Australia
Abstract:
Recent experimental work is cited which has implications for basic equipment design. Some unsatisfactory earlier innovations are also briefly discussed.
The traditional pad and bell apparatus is not superseded but commonly exhibits defects and hazards for which the recessed electrode principle is introduced as a solution. New high-sensitivity requirements in circuitry to match the recessed electrode pad are met in an unusual and inexpensive way.