scholarly journals Dynamic Testing of Data Acquisition Channels Using the Multiple Coherence Function

10.5772/48539 ◽  
2012 ◽  
Author(s):  
Troy C.
Keyword(s):  
Data Acquisition ◽  
Dynamic Testing ◽  
Coherence Function

Microcomputer Based Data Acquisition System for Dynamic Testing

1987 ◽  
Vol 3 (2) ◽  
pp. 299-313 ◽  
Author(s):  
A. N. Lin ◽  
B. A. Verser
Keyword(s):  
Education Research ◽  
Data Acquisition ◽  
Frequency Analysis ◽  
Dynamic Testing ◽  
Data Acquisition System ◽  
Frequency Domain Analysis ◽  
Research And Practice ◽  
Dual Channel ◽  
Analysis System ◽  
Large Model

The availability of capable and relatively inexpensive microcomputers and versatile expansion devices has revolutionized education, research, and practice in engineering. A data acquisition and analysis system for use in full scale and large model dynamic testing based on a popular series of microcomputer has been developed. “Quick-look” and preliminary frequency analysis of data are completed in the microcomputer environment, while more detailed frequency domain analysis of single and dual channel data are completed in the mainframe environment. The system has been used for ambient and forced vibration testing of several prototype structures and large models.

The Design of the Dynamic Detection System for the Screw’s Lead Precision Testing

2013 ◽  
Vol 706-708 ◽  
pp. 1055-1058
Author(s):  
Xian Guang Fan ◽  
Xin Wang ◽  
Yang Lu ◽  
Fan Li ◽  
Yong Zuo
Keyword(s):  
Data Acquisition ◽  
Motion Control ◽  
Dynamic Testing ◽  
Detection System ◽  
Control Card ◽  
Motion Control Card ◽  
Usb Bus ◽  
Data Acquisition Card ◽  
Dynamic Detection ◽  
Circular Grating

For the screw’s lead precision dynamic testing needs, the hardware of the design includes two parts: the motion control card and the data acquisition card. We use the motion control card (GT200-SV) as the circular grating and long grating motor controller, and the data acquisition card is consist of FPGA and DSP. FPGA is the core device to realize the synchronous dynamic grating signal and inductive signal data acquisition and DSP is used to realize the function of decoding and communicating to PC by the USB bus protocol. Finally data are evaluated by the software on the computer. The acquisition speed of Screw’s lead precision dynamic detection system can reach 20 KHZ, and it has been successfully applied to a certain type of screw’s lead precision dynamic detection device in a company.

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