Ante Motor celeritate potestate et celeritate mensuræ ratio plerumque adoptat brachium ut moderatoris, et discreta Digital logica circuitu et Analog Circuit. Et ratio cum LPC2148 ut Imperium Core, rationabile electio motricium frequency imperium et clausit loop feedback potestate, realis-vicis deprehensio et accommodare celeritas, ut systematis non solum habet bonum stabilis-statu perficientur, et habet bonum dynamic perficientur. Systema est maxime composito ex LPC2148 secundum core de principalis potestate circuitu coniuncta motor coegi circuitu, communicationis module circuitu, Rs232), celeritate mensuræ circuitus et alia, ut ostensum est in figura, et alia, ut ostensum est in figura Circuit et alia, ut ostensum est in figura, et alia, ut ostensum est in Circuit et alia, ut ostensum est in Circuit, sicut in figura. Figura II ad brachium main imperium chip. Lpc2148 sicut core de control Circuit est responsible pro frequency output, per mutantur frequency ad imperium motricium celeritate, in magnitudinem notitia potest esse per Rs - sampling Circuit232 interface Circuit et PC communicationis. Lpc2148 modulus ad processum notitia erit collecta simul, secundum ad a plura disciplinam frequency deviation imperium signo output. Systema autem stepper motor scriptor celeritate per adjusting frequency modum. Stepper motor speed 60/200 = f (x, where x is the multiple segmentation, subdivided driving mode, due to the interval Angle is small, the stepper motor control precision is improved obviously, at the same time this kind of drive mode and can effectively restrain noise of low speed running and oscillation phenomenon. 8 ° of two phase four type, 200 stepper pulse can turn a circle. Its stepping motion controlled by the ARM, the special motor drive L298 to drive of stepping motor, drive circuit is shown in figure 3. L298 contains 4 channel logical drive circuit, is a kind of two and four phase motor dedicated driver. Which contains two H bridge both high voltage large current bridge driver, receiving standard TTL logic level signal, can drive motor under 46 V, 2 A. ARM is main controller through the right to control access to the mouth, and M1 ~ M4 that four ports used to connect the motor, by right of the input pulse signal changes on its control. Hall effect a length l and width for b, d thickness of semiconductor chips, when it is placed in a magnetic induction intensity for magnetic field b, if in its opposite sides circulation control current I, and the orthogonal direction of the magnetic field and current direction, the other sides in the semiconductor will produce a and the control current of electric potential and magnetic induction intensity b is directly proportional to the product I, UH, UH = KHIB, namely the KH for the sensitivity of hall element, the electric potential is called the hall voltage, the semiconductor wafer is hall element, its size and external magnetic field and electric current is proportional to the. Hall switch sensor due to its small volume, non-contact, good dynamic performance, long life and other characteristics, widely used In mensuram rotating objectum gyrationis celeritate agro. Hic eligere Sprague scribit societatem producit in praetorium celeritate sensorem, est quaedam Silicon Monolithic integrated Circuit, internum, amplifier, schmidt in circuitu et aperto, alta reliabit, cum innoxium, in circuitu, in coelicitate, cum toto Genus Digital Circuitus, etc
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