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31) There is a speciality of the electric motor used in the printing machine. And the frequency conversion speed governing is rather idealized and widely used method.

32) Frequency conversion of continuous wave is realized by using two - dimensional quasiperiodic nonlinear photonic crystal.

33) The DSP processor was adopted to realize the permanent magnetic synchronism motor frequency conversion timing system.

34) Frequency conversion speed regulation of main motor has the advantages of saving power and stable speed increase.

35) Based on the working principle of a supercalender , the supercalender frequency conversion control system is composed by using the ACS800 series inverters.

36) The system is based on frequency conversion velometer and PLC. This paper analyses the construct of the system, and introduces the working theory of position and graphic sensors.

37) The gear pump adopts frequency conversion which accurate control adhesive capacity output.

38) It is proved that, frequency conversion has excellent accent speed, a brake capability, high efficiency rate, great credit rate factor and joint electricity effect and other merits.

39) It is equipped with several sets of diesel generators and frequency conversion generators, power station control system and subsidiary facilities, which is used to supply power for fieldwork.

40) Standard configuration is sidle frequency conversion motor drive & dec optional configuration is servo motor drive.

41) The 6KV transducer with the series-wound unit of the PWM pressure type can realize the output of the direct high pressure by collecting a lot of lower frequency conversion pressure.

42) Through the study of the paper we once again proved that frequency conversion technology in the environment control system application is feasible.

43) Through application of frequency converter in constant pressure water supply system, the paper describes the economic feature and advantages of adopting AC frequency conversion speed control method.

44) A diagram of open loop control system of induction motor with speed adjustment by frequency conversion is introduced.

45) Energy-saving technologies, such as frequency conversion, heat recollection and ice storage, are rarely applied and only a part of buildings conduct energy-saving operation.

46) In this thesis, the focus is the principle of frequency conversion constant pressure water supply control, designing frequency conversion constant pressure water supply control system.

47) In order to solve above problems, a frequency conversion timing unit for screw pump well and an automatic control system were developed.

48) Besides, the air conditioner system with frequency conversion has many virtues such as small start-up current, fast refrigeration or calefaction, low noises and so on.

49) Secondary distribution cabinets supply power to their respective program control cabinet, frequency conversion cabinet and pump power cabinet.

50) The fast technology of frequency conversion is as high and new technology, foundation technology and save energy technology, and has permeated in all technology departments of economy domain.

51) Using the technique of frequency conversion in three-phase motor, it is convenient to simulate vehicles engine in differ rotate speed.

52) Then the principle of OFDM technology is explained and the baseband signal process and the frequency conversion are discussed primarily with some detail problems explained.

53) Uses solid state relay to isolate the high and low voltage, uses frequency conversion motor to realize fuzzy control.

54) Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.

55) The color code of computer photoelectric automatic track. Speed adjusting of frequency conversion.

56) DDS (direct digital synthesis) is a sort of frequency synthesis technique, which has advantages such as short frequency conversion time, high resolution in frequencies , programmability and so on.

57) Slip frequency as a technique of frequency conversion is finally adopted among several control methods of motor.

58) A fast algorithm for estimating the high - frequency conversion gain of CMOS Gilbert mixers is proposed.

59) In receiving mode, through controlling DDS,(www.Sentencedict.com) it produces the local oscillation signal needed by down frequency conversion of the receiving signal. Then the DBF is used to form the receiving beam.