Terminal Design of the Intelligent Data Acquisition System Based on USB Interface

2013 ◽  
Vol 380-384 ◽  
pp. 3629-3632
Author(s):  
Gui Juan Wang ◽  
Xiao Hui Cheng ◽  
Zuo Xun Wang
Keyword(s):  
Data Acquisition ◽  
United States Of America ◽  
Data Acquisition System ◽  
The United States ◽  
Acquisition System ◽  
Community Based ◽  
Usb Interface ◽  
Terminal Design ◽  
Intelligent Community ◽  
Intelligent Data Acquisition

In this paper, the design of data acquisition system of intelligent community based on USB interface is developed, the method and process of design scheme, a set of data acquisition system composed of the United States of America Cygnal company's C8051F320 chip on the development, and proposes the implementation, through the practice has proved the feasibility of the scheme.

scholarly journals LOW-COST, INTELLIGENT DATA ACQUISITION SYSTEM FOR QCM AND OTHER RESONATOR-BASED BIO- AND CHEMICAL SENSORS

2014 ◽  
pp. 9-17
Author(s):  
Sergey Y. Yurish
Keyword(s):  
Data Acquisition ◽  
Integrated Circuit ◽  
Low Cost ◽  
Data Acquisition System ◽  
Wide Frequency Range ◽  
Acquisition System ◽  
Bulk Acoustic Wave ◽  
Frequency Range ◽  
Modified Method ◽  
Intelligent Data Acquisition

A low-cost, intelligent data acquisition system for quartz crystal microbalance (QCM) and other (superficial SAW and bulk acoustic wave) resonator-based chemical and biosensors described in this article. The system is based on the novel modified method of the dependent count and allows obtaining high metrological performances: programmable and constant in all frequency range relative error of measurement up to 0,0005 % (5 ppm); nonredundant, reduced conversion time of measurement and wide frequency range from 0.05 Hz to 9 MHz (144 MHz with prescaling). The developed system allows measuring variations of the resonance frequency shift for QCM sensors working in liquids and gases. The described low-cost data acquisition system is based on novel integrated circuit of universal frequency-to-digital converter. This design approach has eliminated much of the hardware: there is no need for a microcontroller and complex sensor interfacing electronics, as it is directly compatible with PC computers.

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