Brief communication: Simple and high precision frequency meter for use in power systems

1991 ◽  
Vol 70 (6) ◽  
pp. 1163-1165 ◽  
Author(s):  
DANIEL SLOMOVITZ ◽  
MARIO DITTRICH ◽  
GUILLERMO LANGWAGEN
Keyword(s):  
Power Systems ◽  
High Precision ◽  
Frequency Meter ◽  
Precision Frequency

Capacitive high-precision frequency meter

1967 ◽  
Vol 10 (2) ◽  
pp. 176-179
Author(s):  
L. N. Byzov ◽  
B. A. Kaznacheev
Keyword(s):  
High Precision ◽  
Frequency Meter ◽  
Precision Frequency

Study of High Precision Frequency Measurement Method of Power System Based on DSP

2011 ◽  
Vol 403-408 ◽  
pp. 3030-3034
Author(s):  
Cui Yun Gao ◽  
Ming Liu ◽  
Wen Jing Li ◽  
Ru Han
Keyword(s):  
Power Systems ◽  
High Precision ◽  
High Frequency ◽  
Detection Method ◽  
Signal To Noise Ratio ◽  
Frequency Measurement ◽  
Frequency Noise ◽  
Zero Crossing ◽  
Signal Simulation ◽  
Precision Frequency

In the power systems, frequency is an important parameter for harmonic analysis. This paper proposes a modified high precision zero-crossing detection method. The high frequency noise will affect the power system’s frequency measurement, FIR processing is used for the power signal. Simulation shows that after effective De-noising or when the signal-to-noise ratio (SNR) is higher, the method can reach the precision of 0.01Hz and meet the requirements of frequency measurement precision.

Design of High-Precision Frequency Meter

2013 ◽  
Vol 329 ◽  
pp. 364-367
Author(s):  
Li Mian Ren ◽  
Li Xia Wang ◽  
Ming Zhe Wei
Keyword(s):  
Frequency Domain ◽  
High Precision ◽  
Complete System ◽  
Control Program ◽  
Periodic Signal ◽  
Software System ◽  
Measured Frequency ◽  
Frequency Meter ◽  
Precision Frequency ◽  
Hardware And Software System

Frequency meter measured frequency of analog periodic signal in its frequency domain and used the software control program to replace the complex outside counting circuit. ARM7 development board, LPC2103 chip, and AD9833 chip made up of a complete system. This paper gave the designing schemes of hardware and software system and analyzed experiment results, which prove that this design reaches expectant target with less hardware and simpler structure.

A Compact High-Precision Frequency Swept Interferometer (FSI) for Autonomous Ranging of Satellite Constellation

2021 ◽  
Author(s):  
Yifei Jiang ◽  
Shufan Wu ◽  
Xiaoliang Wang ◽  
Zhong Chao ◽  
Wang Wenyan ◽  
...  
Keyword(s):  
High Precision ◽  
Satellite Constellation ◽  
Precision Frequency
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