Apparatus for measuring motor rotation speed by rotor frequency method

The invention relates to a motor rotation speed testing device with rotor frequency method, wherein it comprises a motor, a programmable controller PLC, and a sine wave-square wave convert circuit; the test signal input of convert circuit is connected to the two-phase wire of motor rotor coil, while...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	GUOBAO TANG
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a motor rotation speed testing device with rotor frequency method, wherein it comprises a motor, a programmable controller PLC, and a sine wave-square wave convert circuit; the test signal input of convert circuit is connected to the two-phase wire of motor rotor coil, while the output is connected to the high-speed input of programmable controller PLC; the high-speed impulse output of controller PLC is connected to the account input of high-speed counter. The invention can use internal circuit to measure the frequency of rotor voltage, without adding motion element, to real-time calculate out the rotation speed of motor, to improve the system reliability and save the producing cost.