SU742822A1 - Device for measuring resonance frequencies of piezoceramic resonators - Google Patents

Device for measuring resonance frequencies of piezoceramic resonators Download PDF

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Publication number
SU742822A1
SU742822A1 SU782700654A SU2700654A SU742822A1 SU 742822 A1 SU742822 A1 SU 742822A1 SU 782700654 A SU782700654 A SU 782700654A SU 2700654 A SU2700654 A SU 2700654A SU 742822 A1 SU742822 A1 SU 742822A1
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SU
USSR - Soviet Union
Prior art keywords
piezoceramic
resonator
resonance frequencies
generator
measured
Prior art date
Application number
SU782700654A
Other languages
Russian (ru)
Inventor
Станислав Петрович Тимошенко
Борис Георгиевич Парфенов
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Предприятие П/Я В-8941
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Application filed by Предприятие П/Я В-8941 filed Critical Предприятие П/Я В-8941
Priority to SU782700654A priority Critical patent/SU742822A1/en
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Publication of SU742822A1 publication Critical patent/SU742822A1/en

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Description

матор 5, например, - на неинвертирующий вход операционного усилител  3.Mat 5, for example, to the non-inverting input of the op amp 3.

Особенно эффективно обострение г1мйпитудно-частотной характеристики пьзэокерамического резонатора при использовании положительной обратной св эк, когда частота генератора совпадает с резонансной частотой пьезокерамвческого резонатора, импеданс Которого при этом резко уменьшаетс  и тем НЕШболее существенно увеличиваетс  коэффициент усилени  операционпого усилител .Especially effective is the sharpening of the frequency-response characteristic of a piezoceramic resonator using positive feedback, when the generator frequency coincides with the resonant frequency of the piezoceramic resonator, whose impedance sharply decreases and thereby significantly increases the gain of the operational amplifier.

;В iTipejipiaraeMOM устройстве четырехполюсник вследствие большой селекТИЕ|НОСТИ имеет очень узкую полосу прс|пускани , котора  в р де случаев ло |ет составл ть 1 Гц, благодар  че. му резко повышаетс  точность определе и  максимума амплитудно-частотной характеристики пьезокерамического резойатора . При этом вли ние добротности ;резонатора на результат измерени  рефко снижаетс  в св зи с повышением селективности четырехполюсника в цепом , что приводит к уменьшению погрешности измерени  резонансных частот.; In the iTipejipiaraeMOM device, the quadrupole due to the large selec- tion of the | STEET has a very narrow bandwidth, which in some cases is 1 Hz, thanks to something. The accuracy of the determination and maximum of the amplitude-frequency characteristic of a piezoceramic resistor is greatly increased. At the same time, the influence of the quality factor of the resonator on the measurement result of the refco decreases in connection with an increase in the selectivity of the quadrupole in the circuit, which leads to a decrease in the measurement error of the resonant frequencies.

Claims (1)

Формула изобретени  Устройство дл  измерени  реэонансных частот пьезокерги даческих резонаторов , содержащее последовательно соединенные генератор синусоидальных колебаний, четырехполюсник с измер емым дьезокерамическим зезонатором, индикатор резонанса и частотомер, подключенный к выходу генератора, о и ч а ю in е е с   тем, что, с целью повышени  точности измерени , в четырехполнх:ник введен операционный усилитель, в цепь обратной св зи которого через эмиттерный повторитель включен измер емый пьезокерамический резонатор.Apparatus of the Invention A device for measuring the re-resonant frequencies of piezokergic resonators containing a series-connected generator of sinusoidal oscillations, a quadrupole with a measured diezoceramic resonator, a resonance indicator and a frequency meter connected to the output of the generator, in order to improve the measurement accuracy, in four-waves: a nickname, an operational amplifier was introduced, into the feedback circuit of which a measured piezoceramic resonator is connected through the emitter follower. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1,Авторское свидетельство СССР 414544, кл. G 01 R 23/12, 1972.1, USSR Author's Certificate of 414544, cl. G 01 R 23/12, 1972. 2,ГОСТ 1237Q-72. Материалы пьезокерамические .2, GOST 1237Q-72. Piezoceramic materials.
SU782700654A 1978-12-18 1978-12-18 Device for measuring resonance frequencies of piezoceramic resonators SU742822A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782700654A SU742822A1 (en) 1978-12-18 1978-12-18 Device for measuring resonance frequencies of piezoceramic resonators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782700654A SU742822A1 (en) 1978-12-18 1978-12-18 Device for measuring resonance frequencies of piezoceramic resonators

Publications (1)

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SU742822A1 true SU742822A1 (en) 1980-06-25

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SU782700654A SU742822A1 (en) 1978-12-18 1978-12-18 Device for measuring resonance frequencies of piezoceramic resonators

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SU (1) SU742822A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2765836C2 (en) * 2020-07-03 2022-02-03 Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук Method for measuring resonant frequency and q-factor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2765836C2 (en) * 2020-07-03 2022-02-03 Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук Method for measuring resonant frequency and q-factor

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