| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: device for generating pulses from signals of rotational frequency inductive sensors relates to measuring equipment and can be used in systems for automatic measurement, control and emergency protection, which include sensors which generate bipolar signals, particularly rotational frequency and flow inductive sensors. The device has an input RC-type low-pass filter 1, a voltage divider 2, an analogue-to-digital converter (ADC) 3, a central processing unit (CPU) 4, a shunt resistor, a comparator 6, a digital-to-analogue converter (DAC) 5, transistor switches T1 and T2, wherein the comparator 6, the transistor switches T1 and T2, ADC 3, DAC 5 and CPU 4 are built-in components of a microcontroller 7.EFFECT: reduced complexity of the device and shorter time for diagnosing input circuits from the sensor for presence of short-circuits and open-circuits.2 dwg |
