title: Instantaneous frequency meter with averaging capability based on interval duration measurement.
abstract: The instantaneous frequency meter described uses an inexpensive hybrid module for on-line interval to frequency conversion and also has a digital low pass filter function. The device is not only a frequency to voltage converter but also is well suited to serve as an interface to a digital computer.
authors.forename: K
authors.initials: K
authors.lastname: Schmid
authors.forename: G
authors.initials: G
authors.lastname: Böhmer
mesh_terms: D004569:Electroencephalography / Q000295:instrumentation*