Device for measuring the resonance frequency of string tensometric sensors with two-wire connection and automatic set-up

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00331632" target="_blank" >RIV/68407700:21230/19:00331632 - isvavai.cz</a>

Výsledek na webu

<a href="https://data.epo.org/publication-server/pdf-document?pn=3076144&ki=B1&cc=EP&pd=20190605" target="_blank" >https://data.epo.org/publication-server/pdf-document?pn=3076144&ki=B1&cc=EP&pd=20190605</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Device for measuring the resonance frequency of string tensometric sensors with two-wire connection and automatic set-up

Popis výsledku v původním jazyce

The system works on the principle of measuring the damped oscillations of sensors with synchronized excitation. Excitation pulses are generated by a processor (12), which in response to the properties of the connected sensor (2) adjusts their amplitude, number, period and rate. The processor (12) also controls the entire behavior of the system, thus considerably enhancing its flexibility. Based on the measured excitation rate and the level of the induced voltage during tail oscillations of the sensor string, the processor (12) also sets the corresponding gain of a differential amplifier (4) and tunes a narrow-band amplifying SC filter (6). This allows to excite and identify vast range of various sensor types efficiently. An initial determination of the resonance frequency of the sensor (2) in the non-synchronized state is based on the spectral analysis of sensed impulse response of the sensor (2) performed by the processor (12). The exciter (1) of the system is enhanced with the current protection against a short circuit. Due to the bridge structure of the exciter (1) it is possible to excite the sensor (2) efficiently and use the subsequent an input amplifier of the induced voltage as a differential amplifier (4), which amplifies the useful induced signal while suppressing the common interference. ### The patent is exploited by its owner.

Název v anglickém jazyce

Device for measuring the resonance frequency of string tensometric sensors with two-wire connection and automatic set-up

Popis výsledku anglicky

The system works on the principle of measuring the damped oscillations of sensors with synchronized excitation. Excitation pulses are generated by a processor (12), which in response to the properties of the connected sensor (2) adjusts their amplitude, number, period and rate. The processor (12) also controls the entire behavior of the system, thus considerably enhancing its flexibility. Based on the measured excitation rate and the level of the induced voltage during tail oscillations of the sensor string, the processor (12) also sets the corresponding gain of a differential amplifier (4) and tunes a narrow-band amplifying SC filter (6). This allows to excite and identify vast range of various sensor types efficiently. An initial determination of the resonance frequency of the sensor (2) in the non-synchronized state is based on the spectral analysis of sensed impulse response of the sensor (2) performed by the processor (12). The exciter (1) of the system is enhanced with the current protection against a short circuit. Due to the bridge structure of the exciter (1) it is possible to excite the sensor (2) efficiently and use the subsequent an input amplifier of the induced voltage as a differential amplifier (4), which amplifies the useful induced signal while suppressing the common interference. ### The patent is exploited by its owner.

Druh

P - Patent

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Číslo patentu nebo vzoru

EP3076144

Vydavatel

EPO_1 -

Název vydavatele

European Patent Office

Místo vydání

Munich, The Hague, Berlin, Vienna, Brussels

Stát vydání

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Datum přijetí

5. 6. 2019

Název vlastníka

České vysoké učení technické v Praze, 166 27 Praha 6 (CZ)

Způsob využití

A - Výsledek využívá pouze poskytovatel

Druh možnosti využití

P - Využití výsledku jiným subjektem je v některých případech možné bez nabytí licence