title: Jittermeter--a microcomputer-based system for single fibre electromyography.
abstract: In single fibre electromyography (SFEMG) an exact measurement and computation of a number of time parameters is required. This paper describes a low-cost microprocessor-based measurement system for SFEMG data acquisition, computation of the parameters and display, as an alternative to a general purpose-computer based system. Time measurement is performed at dual resolution: 0.1 microsecond and 0.1 msec. Erroneous data due to disturbing voltages are automatically eliminated. A variety of SFEMG applications is covered by 3 basic modes of data handling. The microprocessor unit is based on the 6800 family and contains 3K of program memory, input-output modules and 4K data memory. The instructions are entered through a keyboard and output is provided by an LED display, line-printer and X-Y storage display.
mesh_terms: D000200:Action Potentials; D003201:Computers; D003626:Data Display; D004566:Electrodes; D004576:Electromyography / Q000295:instrumentation*; D006801:Humans; D008838:Microcomputers; D009045:Motor Endplate / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009132:Muscles / Q000502:physiology*