| 摘要 |
FIELD: physics; measurement. ^ SUBSTANCE: invention refers to measurement technology and automation and can be used in systems of automatic control of various high-speed objects. Rotation frequency controller contains rotation velocity sensor, pulse shaper with differential input, sensing circuit, data analysis block, balanced voltage source, two-channel analogue switch, bootstrap block, seven resistors and capacitor. First output of rotation velocity sensor is connected to first output of fourth resistor and through fifth resistor to first input of pulse shaper with differential input output of which is connected to input of control circuit of two-channel analogue switch and through sensing circuit and data analysis block to output of controller. Second input of this shaper is connected through sixth resistor to second output of fourth resistor which is connected through first resistor to second output of rotation velocity sensor and to common power bus, through second resistor and initially opened channel of two-channel analogue to p-type bus of balanced voltage source, through third resistor and initially closed channel of two-channel analogue switch to n-type bus of balanced voltage source, through seventh register and bootstrap block to p-type bus of balanced voltage source, first and second inputs of pulse shaper to differential input through capacitor are interconnected. ^ EFFECT: higher reliability of rotation frequency control. ^ 4 dwg |
