课程设计水塔自动控制设计[1]（Curriculum design, water tower automatic control design, [1]）.docVIP

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课程设计水塔自动控制设计[1]（Curriculum design, water tower automatic control design, [1]）.doc

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课程设计水塔自动控制设计[1]（Curriculum design, water tower automatic control design, [1]） Catalog Abstract:... Chapter 1 design requirements and design purposes:...... 3 Section 1 design requirements:... The second section is the purpose of the design:... The second chapter is the design scheme and system block diagram Section 1 design proposal:... Second sections of the system block diagram:... The third chapter, the main unit circuit design:... 5 Section 1 water level detector circuit:.....5 Second section of the water level control circuit:.....6 The third section of the switch control circuit:... Fourth section of the motor status display circuit:....11 Fifth section of the power circuit:... The fourth chapter, list of components,... The fifth chapter, simple water tower water level control general circuit diagram:... 18 Curriculum design experience:... References:... Appendix to...:... Appendix A light emitting diode,... Appendix B work principle and basic knowledge of triode: 22 Appendix C how the zener diode works:....24 abstract The water level control circuit of the water tower consists of five parts, that is the water level detection circuit and the water level control range Circuit, circuit switch control circuit, motor status display circuit and power supply circuit. Water level inspection The measuring circuit realizes the pressure change caused by the change of the water level through a piezoelectric one-way force measuring sensor Converted to current signals for easy processing. The water level control circuit uses voltage ratio The principle of realizing the water level range is compared with the hysteresis characteristic of the hysteresis comparator Avoid tripping caused by changes in water level pressure, and input the comparison results to the next level. The circuit switch control circuit reflects the result of the upper stage to the relay, and utilizes the relay at the same time The characteristics of the motor determine whether the motor works. The status