voltage-frequencyの例文
- Analysis on dynamic characteristics of voltage - frequency converter circuit
- A protective method based on voltage - frequency - converter and additional dc measuring the insulation between monitor wire and ground lines of hv double screen cable is developed and realized by analog and digital circuits
- According to the test conditions , the double polarity inputting mode is adopted in the circuit of voltage - frequency converting part ; storage batteries are used in the optical emission part of optical fibre isolating and transmitting device , that can guarantee isolation between the main circuit and the testing system ; the 89c51 singlechip is used in the singlechip testing - controlling unit , the peripheral circuits are extended , data are transmitted through the serial port in this part ; the p opular software delphi5 . 0 is used in the pc part , the communication between singlechip and pc by serial port , plotting of current wave , regulation of data ; the optical - electrical isolating and triggering are used in the controlling part , this can guarantee the veracity and reliability of breakers triggered , this triggering mode is also used in the triggering of the main closing breaker , the tested breaker and the assistant breaker , the triggering signals are sent out by a singlechip
- The whole large current testing system based on voltage - frequency converting technique has been finished in this paper , and the dc voltage signals , power frequency ac voltage signals are tested by this computer - testing system , the results are good , then the current of current - source in the synthetic circuit are tested by this computer - testing system
- In the computer - testing system of current signal measurement of current - source in synthetic circuit , the following contents are included , such as voltage - frequency converting technique , optical fibre isolating and transmitting technique , singlechip testing and controlling , plotting and printing of sampled data on pc ( personal computer )
