基于单片机的孵化箱温度调节器的设计与制作_英文文献(编辑修改稿)

基于单片机的孵化箱温度调节器的设计与制作_英文文献(编辑修改稿)内容摘要：

data can be read back via the address and data lines for verification. The lock bits cannot be verified directly. Verification of the lock bits is achieved by observing that their features are enabled. Chip Erase: the entire Flash Programmable and Erasable Read Only Memory array is erased electrically by using the proper bination of control signals and by holding ALE/PROG low for 10ms. The code array is written with all “1”s. The chip erase operation must be executed before the code memory can be reprogrammed. Reading the Signature Bytes: The signature bytes are read by the same procedure as a normal verification of locations 030H, 031H, and 032H, except that and must be pulled to a logic low. The values returned are as follows. (030H) = 1EH indicates manufactured by Atmel (031H) = 51H indicates 89C51 (032H) = FFH indicates 12V programming (032H) = 05H indicates 5V programming Programming Interface： Every code byte in the Flash array can be written and the entire array can be erased by using the appropriate bination of control signals. The write operation cycle is self timed and once initiated, will automatically time itself to pletion. The Temperature Controller 1. Introduction With the continuous improvement of the people39。 s standard of living, singlechip microputer control people is undoubtedly one of the objectives pursued, it gives people the convenience can’t be denied, and the digital temperature controller which is a typical example, but it is the increasingly high demands, we must work for the modern, scientific research, and life and provide better and more convenient facilities needed from the technical aspect of SCM, all toward digital control, intelligent control of the direction of development. The temperature controller is a temperature control device, based on user requirements 英文文献 （原文） 10 set temperature and the temperature difference to achieve control, which required users to change the purpose of the temperature. Achieve these objectives there are many ways in theory, but the industry mainly mechanical temperature controller and two Intelligent Electronic series. Modern information technology is the basis of the three information acquisition and control (temperature controller technology), information transfer (ICT) and information processing (puter technology). The Temperature Controller is the forefront of cuttingedge information technology products, in particularly, the temperature controller is widely used in industrial and agricultural production, and life science research in areas such as increasing the number. The digital temperature controller is developed in recent years a new generation of industrial automation detection, controls temperature and versatile instrument, it adopted an advanced largescale integrated circuits, application unique nonlinear calibration technology, the temperature sensor feedback to the realtime instrumentation temperature controller with preset value of the control logic quickly, the operation, ordered output control, so as to achieve the purpose of temperature stability control. The digital temperature controller with the traditional dynamic temperature controller, electronic temperature controller, pared to display highprecision temperature control performance, and seismicrelated and good reliability, as well as aesthetically pleasing, cheaper, etc. It can be widely used in plastics machinery, packaging machinery, metallurgical and food machinery, refrigeration, chemicals, medical equipment industries such as temperature measurement and control. The traditional methods of temperature control is driven conventional relay contactor control, it can only be achieved within a period of temperature control, but there are contacts control, there were low control accuracy, reliability worse, energy consumption, the use of high cost (electric ponents consumed too much) shortings. And the new generation of digital temperature controller As a result of the wisdom of their control as a core microcontroller, in the course of their work it continues to control the temperature automatically correct, and the whole figure used for noncontact temperature control, it can be effectively improve System of measurement and control with high accuracy and reliability. In addition to digital temperature controller with advanced hardware structure, with a more prehensive software system, which makes the perfect temperature for a 英文文献 （原文） 11 variety of alarm and protection, for example, can be set with the maximum temperature alarm sensors can be shortcircuit or opencircuit alarm, and at the same time cut heating controller, activate protection。 temperature in the software process has also joined the antijamming parts, which makes the temperature control features ensure the uninterrupted performance indicators, such as instrument normal work function. 2. The mon temperature controller basic classification A. The mechanical temperature controller The mechanical temperature controller is divided into vapor pressuretemperature controller, expansion of the liquid temperature controller, gas adsorption temperature controller, and metal expansion temperature controller. Vapor Pressure of temperature controller is divided into: inflatabletype, liquidfilled type and mixed type. Home air conditioning mechanical temperature controller is mainly to such temperature controller. The Temperature Controller is the early stage of development of the mechanical temperature controller, such temperature controller in a dual metal plate or inflatable membrane temperature sensor box, the use of directband switching speed adjustment. Bimetal temperature controllers are basic have already been eliminated, the main requirement to use only the lower stalls in some occasions。 inflatable membrane t。