Magnetic Sensor Data Acquisition Technology - MR Sensor Technology - Technology
MR Sensor Technology

Magnetic Sensor Data Acquisition Technology

Date:03-12-2015    Hits:10798

The development of electronic computing technology, especially the rapid development of embedded systems and applications, is causing digital circuit technology to be the foundation of measurement systems. The traditional concept of instruments (transducer – signal conditioning – display – print functional expansion) has evolved to become (test – data acquisition – data processing – storage – transmission) in an integrated and complex system. Data Acquisition (DAQ) combines these two technologies: gathering raw data from sensors, and the subsequent data processing.  With sensors becoming more integrated and intelligent, the boundary between sensors and measurement systems has become increasingly blurred. Therefore, sometimes sensor technology is considered to be within the scope of data processing technology.

The technical field of data acquisition techniques covers a wide range.  Broadly speaking, any method of gathering information, (including electronic and non-electronic data) can be regarded as data acquisition. For example, obtaining needed data from a database on a computer network.

Usually, measured physical parameters such as temperature, humidity, pressure, distance, etc, are analog signals. And analog sensors convert these physical parameters to analog electronic output signals which are also analog, continuous functions in time.

The data acquisition task is to covert these continuous-time functions into digital signals that can be easily handled by digital signal processors. So, data acquisition connects the analog physical signal to a digital electronic circuit interface. So data capture techniques include both hardware and software technologies [1].

A data acquisition system design should typically consider requirements for the following technical capabilities:

1has a data acquisition rate that is fast enough to meet application requirements;

2provides anti-aliasing, and filtering for high frequency noise;

3can be adapted to measure the sensor output signal of the specific sensor types;

4provides electrical excitation signal source to the sensors if they need it;

5can measure the signal of interest throughout the entire operating range (for example:  maximum and minimum voltage);

6provides any required signal conditioning and signal isolation;

7provides any required mechanical interface;

8meets the performance requirements of resolution, accuracy, and low noise level;

9ideally, provides simultaneous multi-channel signal acquisition; this should be based on whether the signal is collected

simultaneously and on the required sensitivity of the acquisition;

10provides any required supporting software.

 

Citations

[1] Dong Yonggui. “Sensor technology and systems,” Tsinghua University Press.


  • 在線客服
久久久久国产精品免费s,久久久一本精品999国产,亚洲欧美日韩综合一区在线,亚洲精品国产综合一线久久 超碰最新公开无码97 国产一级AV免费高清 99热这里全都是精品国产 五月天无码高清不卡毛片 男女后进式猛烈xx00动态图片 亚洲日韩一区二区三区 国产人成午夜精品亚洲 天天摸夜夜操欧美大片 无码AV人妻一区二区三区四区