Dissertation > Excellent graduate degree dissertation topics show

The Design and Research of Ionization Vacuum Gauge

Author: HuangShuai
Tutor: QiaoShuang
School: Northeast Normal University
Course: Circuits and Systems
Keywords: Vacuum Measurement MCU Intelligent Control Conversion Error
CLC: TB772.3
Type: Master's thesis
Year: 2011
Downloads: 85
Quote: 0
Read: Download Dissertation

Abstract


With the continuous development of science and technology, vacuum technology has been widely used. Vacuum technology not only has applications in research and production, but also has application in people’s daily life. Accurate vacuum measurement and control of vacuum are very important for the success of the experiment and the quality of the products. Therefore, a variety of vacuum measuring instruments - vacuum gauge came into being. When the vacuum is (10-1 10（-5）) Pa, we use ionization vacuum gauge, It is responsive, and easy to use, it is continuous measurements which have been widely used.This paper elaborates a new-style ionization vacuum gauge. The ionization vacuum gauge uses ZJ-2 standard ionization gauge which is designed to be used in high vacuum measurement as the signaling sensor, and thus measures from 1.0×10-1Pa to 1.0×10-5Pa.The system chooses one of 16-bit microprocessor controller which is produced by surplus technology—SPCE061A as the core control chip. The weak current signal output by the ZJ-2 standard ionization gauge is sent to microcontroller after signal amplification. After a scale transformation, SPCE061A built-in ADC nonlinear error compensation and scale transformation, pressure values are real-time displayed by six digital tubes. The instrument is designed to operation buttons, key operation we can work to set the threshold of the relay. So the system can be based on the work of two thresholds to control the output relay to control molecular pump units. In addition, for SPCE061A mode-several converter nonlinearity existing problems, this paper puts forward a kind of adopting soft and hardware common nonlinear error method to eliminate, making the ADC integral nonlinear error by original +4LSB,rising to +1LSB.

Related Dissertations

  1. Greenhouse air source heat pump heating systems,S625
  2. The Design and Research of Thermocouple Vacuum Gauge,TB772
  3. Temperature Compensation and Auto-calibration of High-Precision Electronic Balance,TP274
  4. Study on Application of Solar Energy Street Lamp Intelligent Controller,TM923.5
  5. Design of Intelligent Solar Cell Test System,TM914.4
  6. Based on MIFARE technology laboratory Intelligent Management System Design and Implementation,TP311.52
  7. Based on Labview and PLC intelligent synthesis loop testing systems research,TM506
  8. Design of Controller on Solar LED Lighting System,TM923.34
  9. Based on TCP/IP Protocol Embedded Fire Alarm System Design and Research,TP277
  10. The Control Research of Fuel Cell Vehicle Engine Based on MCU,U464.93
  11. Intelligent Control and Simulation for Air Compressor System,TB657.7
  12. Frequency Stabilization Technology Based on Temperature and Current Auto Control,TN248.4
  13. Research on Laser Length Measurement System of Oil Line Pipe,TH761.2
  14. Research on High-Precision Measurement of Liquid Level Changes Based on CCD Laser Sensor,TP212
  15. The Research Extraction Methods of Cardiac Electrical Signals,TN911.7
  16. Design and Implementation of Environmental Monitoring System of Railway Carriages,U270.383
  17. The Thesis of the Contrl System of Active Control Pantograh,U264.34
  18. The Study of the Medium-speed Pulverizer’s Intelligent Control and Air Distribution Influence on the Boiler’s Economical Operation,TK227
  19. Intelligent Control System Design of Layered Water-injection in Oilfield,TE934
  20. Intelligent Control Technology of Water Injected Well,TE357.6
  21. GPRS-based street light monitoring and management system,P228.4

CLC: >
© 2012 www.DissertationTopic.Net  Mobile