Title :
Research on Frequency Resource of ICP-MS Based on DDS
Author_Institution :
Nat. Anal. Center for Iron & Steel, Central Iron & Steel Res. Inst., Beijing, China
Abstract :
This paper presents a novel frequency resource for frequency resource of ICP-MS (Inductively Coupled Plasma Mass Spectrometry), which is based on DDS (Direct Digital Frequency Synthesizes) technology. It consists of micro controller, which is the controller of system, DDS chip AD9835, which communicates with the micro controller through the SPI Bus, crystal, which provides benchmark frequency, and power module, which provides power for the system. It can produce a standard sine wave with the frequency range from DC (Direct Current) to 25MHz, and the change of frequency can be controlled by the computer via the USB Bus. Finally after experiments, it indicates that this frequency resource can totally meet the requirement of ICP-MS.
Keywords :
direct digital synthesis; mass spectroscopy; peripheral interfaces; DDS chip AD9835 microcontroller; DDS technology; ICP-MS; SPI bus; USB bus; benchmark frequency; direct digital frequency synthesizer technology; frequency 25 MHz; frequency resource; inductively coupled plasma mass spectrometry; power module; Computers; Frequency control; Frequency modulation; Microcontrollers; Radio frequency; Universal Serial Bus; Voltage control; C8051F microcontroller; DDS; ICP-MS; SPI;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control, 2011 First International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-0-7695-4519-6
DOI :
10.1109/IMCCC.2011.47
