SU128052A1 - Method for measuring nonlinear distortion - Google Patents
Method for measuring nonlinear distortionInfo
- Publication number
- SU128052A1 SU128052A1 SU617451A SU617451A SU128052A1 SU 128052 A1 SU128052 A1 SU 128052A1 SU 617451 A SU617451 A SU 617451A SU 617451 A SU617451 A SU 617451A SU 128052 A1 SU128052 A1 SU 128052A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ratio
- nonlinear distortion
- measuring
- pulses
- measuring nonlinear
- Prior art date
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Analogue/Digital Conversion (AREA)
Description
Известные способы измерени коэффициента нелинейных искажений не обеспечивают получение большой точности при измерении малых величин этого коэффициента.The known methods for measuring the nonlinear distortion coefficient do not provide high accuracy when measuring small values of this coefficient.
Предлагаемый способ упрощает процесс и повышает точность измерени коэффициента нелинейности. Это достигаетс подачей на вход исследуемого устройства парных импульсов с заданным отношением амплитуд и определением нелинейных искажений по изменению этого отношени на выходе устройства с преобразованием непрерывной величины, характеризуюшей изменени отношени , в цифровой эквивалент .The proposed method simplifies the process and improves the accuracy of measuring the nonlinearity coefficient. This is achieved by inputting a pair of pulses to the input of the device under investigation with a given amplitude ratio and determining nonlinear distortions from the change in this ratio at the output of the device with a continuous value conversion, characterizing the change in ratio, to a digital equivalent.
На чертеже представлена блок-схема устройства, служащего дл осушествлени предлагаемого способа.The drawing shows a block diagram of a device for performing the proposed method.
Блок / геперирует парные, отличающиес друг от друга по амплитуде импульсы напр жени . Блок 2 вл етс импульсным измерителем отношени ; он подключаетс то к входу (в этом случае измер етс отношение амнлитуд импульсов, подаваемых на исследуемое устройство 3), то к выходу (когда измер етс отношение амплитуд импульсов, прошедших через исследуемое устройство 3).The unit / generates pairwise, voltage pulses differing from each other in amplitude. Block 2 is a pulse ratio meter; it is connected to the input (in this case, the ratio of the amplitudes of the pulses applied to the device under study 3) is measured, then to the output (when the ratio of the amplitudes of the pulses passed through the device under study 3 is measured).
При наличии нелинейных искажений отношение амплитуд двух импульсов после прохождени их через исследуемое устройство 3 будет отличатьс от отпошени амнлитуд тех же импульсов до прохождени . Степень отличи отношени амплитуд на входе и выходе исследуемого устройства 3 и будет вл тьс мерой нелинейности данного устройства. Дл повышени точности измерени малых величин нелинейиых искажений предлагаетс применить цифровой (дискретный) измеритель отношени .If there are nonlinear distortions, the ratio of the amplitudes of the two pulses after passing them through the device under study 3 will differ from sending the amplitudes of the same pulses before passing. The degree of difference in the ratio of the amplitudes at the input and output of the device under study 3 will be a measure of the nonlinearity of this device. To improve the accuracy of measuring small non-linear distortion values, it is proposed to apply a digital (discrete) ratio meter.
Предмет изобретени Subject invention
Способ измерени коэффициента нелинейных искажений, основанный на сравнении входных и выходных сигналов при помощи логометрической схемы, отличающийс тем, что, с целью упрощени процесса измерени и повыщени точности определени коэффициента нелинейных искажений, на вход исследуемого устройства подают парные импульсы с заданным отнощением амплитуд и определ ют нелинейные искажени по изменению этого отнощени на выходе устройства, преобразовав непрерывную величину, характеризующую изменени отнощени , в цифровой эквивалент.A method of measuring the nonlinear distortion coefficient based on comparing input and output signals using a ratiometric circuit, characterized in that, in order to simplify the measurement process and improve the accuracy of determining the nonlinear distortion coefficient, pair pulses with a specified amplitude ratio are applied to the input of the device under investigation and non-linear distortions from the change in this ratio at the output of the device, converting a continuous value characterizing the change in ratio into a digital equivalent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU617451A SU128052A1 (en) | 1959-01-22 | 1959-01-22 | Method for measuring nonlinear distortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU617451A SU128052A1 (en) | 1959-01-22 | 1959-01-22 | Method for measuring nonlinear distortion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU128052A1 true SU128052A1 (en) | 1959-11-30 |
Family
ID=48399285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU617451A SU128052A1 (en) | 1959-01-22 | 1959-01-22 | Method for measuring nonlinear distortion |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU128052A1 (en) |
-
1959
- 1959-01-22 SU SU617451A patent/SU128052A1/en active
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