SU544911A1 - Method of frequency calibration of amplitude-phase-frequency characteristics and circular diagrams of electroacoustic transducers - Google Patents
Method of frequency calibration of amplitude-phase-frequency characteristics and circular diagrams of electroacoustic transducersInfo
- Publication number
- SU544911A1 SU544911A1 SU2058806A SU2058806A SU544911A1 SU 544911 A1 SU544911 A1 SU 544911A1 SU 2058806 A SU2058806 A SU 2058806A SU 2058806 A SU2058806 A SU 2058806A SU 544911 A1 SU544911 A1 SU 544911A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- frequency
- amplitude
- phase
- electroacoustic transducers
- frequency characteristics
- Prior art date
Links
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
рого подаетс напр жение задающего перестраиваемого генератора 2 с частотной модул цией в небольших пределах относительно основной несущей частоты. Резонансна частота кварцевого и задающего генераторов с выхода смесител 3 через буферный каскад 4 подаетс к измерителю. При относительной частотной калибровке на вход высокодобротной резопапсной схемы 7 подаютс выходные напр жепп задаю1цего генератора 2 с частотной модзл цисй п скаиируюп,его генератора 5. При этом между выходом задающего генератора 2 и входом генератора 5 включено маснпабиое устройство 6, повьппающее частоту скапировапи генератора 5 в п |)аз. Законы пзмепеии частоты генераторов 2 п 5 н прсдс.. указанных периодов идс ггпчиы.The voltage of the master variable oscillator 2 with frequency modulation is applied within a small range relative to the main carrier frequency. The resonant frequency of the quartz and master oscillators from the output of the mixer 3 through the buffer cascade 4 is fed to the meter. With a relative frequency calibration, the output of the high-quality rezappapsnoy circuit 7 is supplied to the output of the generator 2 with the frequency modulator, its generator 5. At the same time, between the output of the master oscillator 2 and the input of the generator 5, the mashpaby device 6 is turned on n |) az. The laws are the frequency of the frequency generators 2 p 5 n prdsds .. these periods ids ggpchiyy.
Дл абсолютной частотной ирпв зкп калибруемой характеристики на вход схемы 8 подаютс выходные нанр жени смесител 3 и эталонного автономно перестраиваемого генератора 9. Схемы 7 п 8 имеют одинаковое схемпое иостроенне и в моменты совпадени мгновеппых значеннй частот, подаваемых на входы, на их выходах по вл ютс метки, иостунающие далее на регистрирующее устройство дл калибровки амплитудно-фазочастотных характеристик и круговых диаграмм электроакустических преобразователей.For the absolute frequency irpvcrc of the calibrated characteristic, the output of circuit 8 is fed to the output of mixer 3 and the reference autonomously tunable generator 9. Schemes 7 and 8 have the same circuitry and at the moments of coincidence of instantaneous frequencies applied to the inputs, their outputs appear labels, and further on the recording device for calibrating the amplitude-phase-frequency characteristics and circular diagrams of electroacoustic transducers.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2058806A SU544911A1 (en) | 1974-09-13 | 1974-09-13 | Method of frequency calibration of amplitude-phase-frequency characteristics and circular diagrams of electroacoustic transducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2058806A SU544911A1 (en) | 1974-09-13 | 1974-09-13 | Method of frequency calibration of amplitude-phase-frequency characteristics and circular diagrams of electroacoustic transducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU544911A1 true SU544911A1 (en) | 1977-01-30 |
Family
ID=20595645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2058806A SU544911A1 (en) | 1974-09-13 | 1974-09-13 | Method of frequency calibration of amplitude-phase-frequency characteristics and circular diagrams of electroacoustic transducers |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU544911A1 (en) |
-
1974
- 1974-09-13 SU SU2058806A patent/SU544911A1/en active
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