SU934807A1 - METHOD FOR DETERMINING THE NONLINEARITY OF PENDULUM ACCELEROMETER ON THE CENTRIFUGE - Google Patents
METHOD FOR DETERMINING THE NONLINEARITY OF PENDULUM ACCELEROMETER ON THE CENTRIFUGEInfo
- Publication number
- SU934807A1 SU934807A1 SU2892444/10A SU2892444A SU934807A1 SU 934807 A1 SU934807 A1 SU 934807A1 SU 2892444/10 A SU2892444/10 A SU 2892444/10A SU 2892444 A SU2892444 A SU 2892444A SU 934807 A1 SU934807 A1 SU 934807A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- accelerometer
- nonlinearity
- signals
- quadratic
- centrifuge
- Prior art date
Links
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- Testing Of Balance (AREA)
Abstract
Способ определения нелинейности маятникового акселерометра на центрифуге, включающий определение крутизны статической градуировочной характеристики, измеренной в поле силы тяжести ±Ig, установку оси подвеса и измерительной оси горизонтально, задания опорного ускорения на центрифуге по крутизне градуировочной характеристики, соответствующей опорному сигналу, в поле силы тяжести, последующее задание ускорений, пропорциональных опорному, измерения выходных сигналов и сравнение их с расчетными, отличающийся тем, что, с целью повышения точности определения нелинейности, предварительно, на начальном участке диапазона измерения, определяют коэффициенты квадратичной и кубической нелинейности в двух положениях акселерометра, отличающихся на 180° относительно номинальной измерительной оси при нескольких значениях кратных ускорений, задают опорное ускорение, при котором полуразность сигналов акселерометра в двух положениях, отличающихся на 180°, при двукратных ускорениях с учетом коэффициентов квадратичной и кубической нелинейности пропорциональна опорному сигналу, определяют постоянную величину смещения нуля акселерометра при задании опорного ускорения с учетом коэффициентов квадратичной и кубической нелинейности по сигналам, измеренным в двух положениях, отличающихся на 180° при повороте относительно номинальной измерительной оси, а затем измеренные сигналы задаваемого диапазона корректируются с учетом определенной величины смещения нуля акселерометра.Method for determining non-linearity of a pendulum accelerometer on a centrifuge, including determining the steepness of a static calibration characteristic measured in a gravity field ± Ig, setting the suspension axis and measuring axis horizontally, specifying the reference acceleration in a centrifuge on a gradient calibration characteristic corresponding to a reference signal, in a gravity field, the subsequent assignment of accelerations proportional to the reference, measuring the output signals and comparing them with the calculated ones, characterized in that, in order to increase Definitions of nonlinearity, preliminarily, at the initial part of the measurement range, determine the coefficients of quadratic and cubic nonlinearity in two accelerometer positions that differ by 180 ° relative to the nominal measuring axis at several values of multiple accelerations, set the reference acceleration at which the half-difference of the accelerometer signals in two positions, differing by 180 °, with double accelerations taking into account the coefficients of quadratic and cubic nonlinearity is proportional to the reference signal, accelerometer zero offset is constant when defining the reference acceleration taking into account quadratic and cubic nonlinearity coefficients by signals measured in two positions that differ by 180 ° when rotated relative to the nominal measuring axis, then the measured signals of the specified range are corrected taking into account a certain accelerometer zero offset .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2892444/10A SU934807A1 (en) | 1980-01-14 | 1980-01-14 | METHOD FOR DETERMINING THE NONLINEARITY OF PENDULUM ACCELEROMETER ON THE CENTRIFUGE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2892444/10A SU934807A1 (en) | 1980-01-14 | 1980-01-14 | METHOD FOR DETERMINING THE NONLINEARITY OF PENDULUM ACCELEROMETER ON THE CENTRIFUGE |
Publications (1)
Publication Number | Publication Date |
---|---|
SU934807A1 true SU934807A1 (en) | 2005-07-20 |
Family
ID=60525480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2892444/10A SU934807A1 (en) | 1980-01-14 | 1980-01-14 | METHOD FOR DETERMINING THE NONLINEARITY OF PENDULUM ACCELEROMETER ON THE CENTRIFUGE |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU934807A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114705232A (en) * | 2022-03-16 | 2022-07-05 | 南京苏试广博环境可靠性实验室有限公司 | Singlechip infrared photoelectric speed measuring system |
-
1980
- 1980-01-14 SU SU2892444/10A patent/SU934807A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114705232A (en) * | 2022-03-16 | 2022-07-05 | 南京苏试广博环境可靠性实验室有限公司 | Singlechip infrared photoelectric speed measuring system |
CN114705232B (en) * | 2022-03-16 | 2024-06-04 | 南京苏试广博环境可靠性实验室有限公司 | Infrared photoelectric rotary speed measuring system of single chip microcomputer |
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