A High-Accuracy, Long-Distance Range Measurement System

The ship electric field has become a new physical field which is widely concerned at home and abroad in recent years. For the research of ship electric field, one of the most effective methods is to measure it underwater. According to the analysis of ship electric field signal’s characteristics, the ship electric field measurement system based on MSP430F149 was designed and the key technologies of software and hardware were also presented in this paper. The results of experiment demonstrated that the system could effectively measure the ship electric field signal in a low SNR. Meanwhile, it has the advantages of low power consumption, high accuracy and credible.

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Design of Temperature Monitoring System Based on MSP430

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.301-303.1162 ◽

2011 ◽

Vol 301-303 ◽

pp. 1162-1165

Author(s):

Fei Hu ◽

Wen Qing Yin ◽

Cai Rong Chen

Keyword(s):

Monitoring System ◽

Simple Structure ◽

High Accuracy ◽

Temperature Monitoring ◽

Low Power Consumption ◽

Key Factors ◽

Process Data ◽

Long Distance ◽

Fast Acquisition ◽

Digital Temperature Sensor

The Greenhouse Temperature Is one of the Key Factors for Controlling the Growth of Crops. Traditional Methods of Temperature Monitoring Can Not Meet the Modern Greenhouse Requirements of High Accuracy, Fast Acquisition and Response. a Greenhouse Temperature Monitoring System Based on MSP430 Was Designed. this System Uses Digital Temperature Sensor DS18B20 to Measure Temperature, MSP430 to Process Data and Transmit Data to the Host Computer through RS485 Bus, Realizing the Real-Time Detection and Long-Distance Transmission of Greenhouse Temperature. this System Has the Features of Simple Structure, Low Power Consumption, Stability and Strong Portability Etc.

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High-Accuracy Wide-Range Measurement Method for Determination of Complex Permittivity in Reentrant Cavity: Part A --- Theoretical Analysis of the Method

IEEE Transactions on Microwave Theory and Techniques ◽

10.1109/tmtt.1980.1130045 ◽

1980 ◽

Vol 28 (3) ◽

pp. 225-228 ◽

Cited By ~ 27

Author(s):

A. Kaczkowski ◽

A. Milewski

Keyword(s):

Theoretical Analysis ◽

Complex Permittivity ◽

Measurement Method ◽

High Accuracy ◽

Range Measurement ◽

Wide Range

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Design of Equivalent Device Based on Ethernet Communication

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.341-342.868 ◽

2011 ◽

Vol 341-342 ◽

pp. 868-872

Author(s):

Hui Xin Zhang ◽

Yan Lu Zheng ◽

Yan Ran Chen ◽

Hai Guang Yang

Keyword(s):

Measurement System ◽

High Speed ◽

Data Transfer ◽

Long Distance ◽

Aircraft Measurement ◽

Transfer Mode ◽

Analog Signals ◽

Self Testing ◽

Test Platform ◽

Equivalent Test

To match, test, and determine the working conditions and correctness of each function of the aircraft measurement system. This article proposes a design of equivalent test platform which can produce digital and analog signals for the self-testing of measurement system. By using the ethernet protocol chip W5300 to achieve the high-speed communication between host computer and equivalent device. Communication uses UDP unicast data transfer mode with advantages of high-speed and long-distance transmission, and the Phenomenon of data packet loss is not easy in transmission.

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