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1. WO2011007972 - SYSTEM FOR MEASURING THE FREQUENCY OF A VIBRATING WIRE SENSOR USING A DIGITAL COUNTER SYSTEM

Publication Number WO/2011/007972
Publication Date 20.01.2011
International Application No. PCT/KR2010/004304
International Filing Date 02.07.2010
IPC
G01R 23/02 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
23Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
02Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
G01H 17/00 2006.01
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
17Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass
CPC
G01H 13/00
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
13Measuring resonant frequency
Applicants
  • 주식회사 디에스텍 DS TEK CO., INC [KR]/[KR] (AllExceptUS)
  • 김종문 KIM, JongMoon [KR]/[KR] (UsOnly)
Inventors
  • 김종문 KIM, JongMoon
Agents
  • 특허법인다울 DAWOOL PATENT AND LAW FIRM
Priority Data
10-2009-006411814.07.2009KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) SYSTEM FOR MEASURING THE FREQUENCY OF A VIBRATING WIRE SENSOR USING A DIGITAL COUNTER SYSTEM
(FR) SYSTÈME DE MESURE DE LA FRÉQUENCE D'UN CAPTEUR À FIL VIBRANT À L'AIDE D'UN SYSTÈME DE COMPTEUR NUMÉRIQUE
(KO) 디지털 카운터 방식을 이용한 진동현 센서의 주파수 측정 시스템
Abstract
(EN)
The present invention relates to a system for measuring the frequency of a vibrating wire sensor using a digital counter system, which measures changes in the length of a structure to monitor changes in the structure, comprising: a processor which outputs an excitation signal to an excitation signal interface unit for a vibrating wire sensor, and compares the counted value input from an external source with a consumed time to calculate a resonant frequency; said excitation signal interface unit for a vibrating wire sensor, which receives the excitation signal from the processor, converts the received signal into a form capable of generating an excitation, and outputs the converted signal; said vibrating wire sensor, which outputs an intrinsic vibration signal in response to the excitation signal; a received signal interface unit for the vibrating wire sensor, which receives an intrinsic vibration signal output by the vibrating wire sensor, converts the received signal into a signal recognizable by the processor, and outputs the converted signal to the processor; a signal-converting unit which converts the amplified intrinsic vibration signal into a digital signal; and a counter which counts the digital intrinsic vibration signal output from the signal converting unit and outputs the counted value to the processor.
(FR)
La présente invention porte sur un système de mesure de la fréquence d'un capteur à fil vibrant à l'aide d'un système de compteur numérique, mesurant les modifications de longueur d'une structure afin de surveiller les modifications de la structure, comprenant : un processeur émettant un signal d'excitation vers une unité d'interface de signal d'excitation pour un capteur à fil vibrant, et comparant l'entrée de valeur décomptée provenant d'une source extérieure avec le temps de calcul d'une fréquence de résonance; ladite unité d'interface de signal d'excitation pour un capteur à fil vibrant, qui reçoit le signal d'excitation provenant du processeur, convertissant le signal reçu en une forme capable de générer une excitation, et émettant le signal converti; ledit capteur à fil vibrant, émettant un signal de vibration intrinsèque en réponse au signal d'excitation; une unité d'interface de signal reçu pour le capteur à fil vibrant, recevant un signal de vibration intrinsèque émis par le capteur à fil vibrant, convertissant le signal reçu en un signal apte à être reconnu par le processeur, et transmettant le signal converti au processeur; une unité de conversion de signal convertissant le signal de vibration intrinsèque amplifié en un signal numérique; et un compteur comptant le signal de vibration intrinsèque numérique émis par l'unité de conversion de signal et transmettant la valeur décomptée au processeur.
(KO)
본 발명은 구조물의 길이 변화를 측정하여서 구조물의 변화를 모니터링하기 위한 디지털 카운터 방식을 이용한 진동현 센서의 주파수 측정 시스템에 관한 것으로, 진동현 센서의 주파수 측정 시스템에 있어서, 진동현 센서용 여기 신호 인터페이스부로 출력하고, 외부로부터 입력되는 카운트 결과값을 소비된 시간과 비교하여서 공진 주파수를 계산하는 프로세서; 상기 프로세서에서 출력되는 여기신호를 입력받아, 여기를 발생시킬 수 있을 형태로 변환하여 출력하는 진동현 센서용 여기 신호 인터페이스부; 상기 여기신호에 응하여 고유 진동 신호를 출력하는 진동현 센서; 상기 진동현 센서로부터 출력되는 고유 진동 신호를 수신받아 상기 프로세서가 인식할 수 있는 신호로 변환하여 상기 프로세서로 출력하는 진동현 센서용 수신신호 인터페이스부; 증폭된 고유 진동 신호를 디지털 신호로 변환하는 신호 변환부; 및 상기 신호 변환부로부터 출력되는 디지털 고유 진동 신호를 카운트하고, 카운트 결과값을 상기 프로세서로 출력하는 카운터로 이루어진 것을 특징으로 한다.
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