Title:
FREQUENCY MONITORING SYSTEM
Document Type and Number:
Japanese Patent JPS5395082
Kind Code:
A
Abstract:
PURPOSE: To provide a frequency monitoring system, which can facilitate changes of its upper and lower limits while reducing the number of parts, by controlling a shift resistor with the frequency to be measured and the reference frequency.
Inventors:
KUBO NORIO
Application Number:
JP953377A
Publication Date:
August 19, 1978
Filing Date:
January 31, 1977
Export Citation:
Assignee:
YOKOGAWA ELECTRIC WORKS LTD
International Classes:
G01R23/10; G01R23/02; G01R23/15; (IPC1-7): G01R23/02