Forum pracy nad projektem wskrzeszenia The Forge

[defgf60hv]

,[link widoczny dla zalogowanych]
Avalon on the MVB bus receiver module


A standard voltage is applied to the input of the integrator. Select a certain \Size is reflected by the electronic integrator with accuracy. Speaking from the dimension. 1 volt seconds (Vs) = 1O. Maxwell (Mx) = l Weber (Wb), so we can use \In order to achieve the precision of the flux calibration. 3.2 volt-second calibration The calibration of the integrator calibration method based on the principle of volt seconds,[link widoczny dla zalogowanych], we can see, when you select a standard volt-second generator gear,[link widoczny dla zalogowanych], it will have a standard voltage is applied to the input of the integrator, then integrator measured the output voltage e is reflected in the size of the integrator with accuracy. Speaking from the dimension. 1Vs = l0x = lWb,[link widoczny dla zalogowanych], it can be directly converted into flux volt seconds, and thus the measured flux for the precision calibration. In the calibration ambient temperature is 25. C, calibration of the integrator, the integrator calibration power after 15 minutes, calibration of the measured data shown in Table 1. Table 1 range for the 1mWb measurement data can be drawn from Table 1: Measurement accuracy of better than 1.5%, measured resolution of O. 5%. Measurement system stability is ± 5%. 4 Conclusion In this paper, the characteristics of the tested micro-magnetic signal, analyzes the main reason for the error generated points and improvement measures, through the use of the standard volt-second generator of the designed integrator calibration, calibration results show that the accuracy of the measurement system better than 1.5%, reaching the required national standard GB/T3657-1983 flux measurement error is less than 2% of the measurement requirements: and using integral method of amplification is simple to measure the micro-flux. And can be easily realized with the digital circuit interface, which greatly improves the micro-flux measurement system automation. References [1】 阿法拉谢耶夫. Magnetic field parameter measurement apparatus [M】. Beijing: Science Press, 1983. [2】 Chen Dusing. The basis of magnetic measurements [M】. Beijing: Mechanical Industry Press, 1985. [3】 Kong Youlin. Integrated Operational Amplifier and should JTJ [M]. Beijing: People's Posts and Telecommunications Press, 1988. [4】 Lu Yong Deok, bears pretty. Talk about the integration circuit analytical method [J】. Electrical and Electronic Engineering, 2004,28 (6) :223-225. [5】 Wu Zuguo. ICL7650 chopper-stabilized operational amplifier theory and application [J】. Foreign ea-7: ~ devices, 2003,13 (4) :41-42. [6】 Du Weihua. Several practical engineering op-amp zero method [J】. National Vocational and Technical College in Chengde. 2002.34 (2) :55-56 .0.99410.99410.99460.99500.00040.04% 0.99510.994760.9942 [7】 MarkoHinkkanenandJormaLuomi. ModifiedIntegratorforVolt-ageHuxEstimationofinductionMotors [J] Annu ~ ConferenceoftheIEEEIndustrialElectronicsSociety, 2001,24 ( :1339-1343. [8】 J. HuandB. Wu. NewIntegrationalgorithmsforestimatingmotorfluxoverawidespeedrange [J】. IEEETransactionsonPowerElec-tmniCS, 1998,13 (5) :969-977. [9】 Allen. PandMillsJr. Methodforme ~ uringmagneticmomentswithprecision [J]. JournalofAppliedPhysics. 1994,45 (12) :5440-5442. [10】 Wang Feng Qi. Flux of the \Shanghai meter four plants, 2001. [11】 Zhang Tao, Wang Zhi Guang. Total digital integral flux [J】. Natural Science of Jilin University, 1999, (1) :64-66. About the author: Chaishu Gang (1984 a), male,[link widoczny dla zalogowanych], graduate students, research techniques and instruments for the measurement. Emaihcoolgange @ sohu. corn Received 13; 2007-11-16 (Liu New Development). -49. -
More articles related to topics：


[link widoczny dla zalogowanych]

ugg boots ireland A Practical Design of Power Meas

ghd stijltang Energy-efficient steam turbine to th