Title： The temperature control of the soft capsule
Abstract：
This lesson a control for investigatively regarding eight single a machine 89 c52s as core system, use to the production temperature that control the soft capsule.The scope of is 0-100 Cs, the accuracy reach the ± 0.50.With the solid hour in a temperature for single a machine for core controling parts, to drive controling object control.It was detailed to introduced the software of that system puts into practice the means combines the synopsis described the system hardware characteristics.That system makes use of an a kind of intelligence for the single a machine realizes temperature automatic examination with regulating automatically equips.Should equip the main characteristics consist in: the temperature establishes to be realized by hardware, being read into by key switch, doing not need electricity protection; temperature of automatic control adoption PID, folio pass measure proceeding control.In the electricity of the usual usage heat system, load the exportation method to have primarily:Adjust the press type( change the lead type) period over the type of zero.( occupy the empty ratio control)But adjust the press type control power factor low, produce a pollution to the charged barbed wire net, occupy the empty ratio control way make partial electric circuit moment electric current over big make the acceleration of the power supply equipments aging, for overcoming the above weakness, adoption the cycle controls over the type of zero( change the period type).Changing the period control key is to measures the control to conversion lead the cycle of the count, the winning that cycle number is a relation to make use of control measures with lead the number in direct proportion, making use of two kinds of different calculate ways the acquisition of.Pass again the cycle to send into over the pulse signal of zero, the single a machine AT89C52 creation exterior breaks off to complete the mutually, count, recognize item, drive the exportation control.Finally to the system the anti- interference measure that adopt did the simple introduction.The design expresses, the hardware of the temperature's controller design simple, the cost is low, the consumes small, the physical volume is small, controling the result of better, have the certainly practical value.
