A Small-Sized and Battery-Supplied Data Acquisition System for the Electromagnetic Launcher to Measure Pulsed Magnetic Fields

2017 ◽  
Vol 870 ◽  
pp. 85-92
Author(s):  
Rong Gang Cao ◽  
Xiang Cai Xu

In rail-gun launchers, the main current is pulsed and can reach up to several MA. The width of the pulse is about 2 - 4ms. When pulsed currents are supplied from the pulse power, it will generate a large transient magnetic field around the armature. Meanwhile, the armature will be accelerated up to 2km/s by a large electromagnetic force. In order to research the features of the fields around contact surfaces between rails and the armature, it needs to use a small-sized and battery-supplied data acquisition system to measure pulsed magnetic fields. The B-dot probe acts as a sensor to acquire the transient magnetic fields. All data will be stored in a SD card. The armature and SD card will be caught and fetched back after the launching. The system would be suitable and useful for the electromagnetic launcher design.

2012 ◽  
Vol 614-615 ◽  
pp. 1566-1569
Author(s):  
Qiang Liu ◽  
Guo Hua Fu ◽  
Xin Ge Lian ◽  
Jun Wang

Because of the data acquisition system is more and more wide application range, involved the signal source and the type of more and more of the requirement of measurement, more and more is also high, the domestic now has quite a few data collection system and measurement, but many systems are simple function, and acquisition channel, the sampling rate is low, less complex operation, and higher requirements for test environment. People need a wide application range, high performance/price ratio of data acquisition system. In this paper, the main content is the use of ARM9 processor C2440A primarily controller series 3, design an embedded data acquisition system. Using ARM9 chip do microprocessor design remote data acquisition system, through the embedded Linux system video data collection USB cameras, the JPEG compression coding, ARM9 chip control data acquisition by most industrial environmental restrictions for collection system that has a large capacity of the storage and wireless forwarding function. This paper to S3C2440A as the core, with A piece of FPGA and A piece of Ethernet CS8900A controller for auxiliary to realize the digital parts of the system hardware, analog part two way by the A/D acquisition, variable gain amplifier and basic amplifying circuit component. The system also realize the SD card memory function and various interface such as serial ports and JTAG mouth. In the software of realized in development platform on Linux system of transplantation, separately from the Bootloader transplantation, Linux kernel transplantation and root file system, the establishment of the three are expounded. And completion of the A/D converter, SD card and CS8900A in the drive design under Linux, and finally the data acquisition, storage design and forwarding program.


2015 ◽  
Vol 713-715 ◽  
pp. 1056-1060 ◽  
Author(s):  
Wei Xin Wang

Based on PNI11096 magnetic sensor data acquisition system can be used for path recognition of automatic guided vehicle (AGV). The use of the magnetic field on the path to produce paving soft magnetic strip, AGV at run time through the sensor detects the current relative to the magnetic field strength of soft magnetic data will be returned in the STM32 chip data processing after two values through the open collector output 16 bit IO, provide location information for AGV.


2013 ◽  
Vol 391 ◽  
pp. 572-575
Author(s):  
Lei Jing ◽  
Ren Jun Wan ◽  
Ke Xin Wei

The article introduces a data acquisition system based on GPS and LPC1768 microcontroller as the core and SD card as storage medium.Meanwhile,it shows hardware design and software design to realize a design of driving cycle data acquisition system


2019 ◽  
Vol 64 (11) ◽  
pp. 115016 ◽  
Author(s):  
Keivan Kaboutari ◽  
Ahmet Önder Tetik ◽  
Elyar Ghalichi ◽  
Mehmet Soner Gözü ◽  
Reyhan Zengin ◽  
...  

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