SU669306A1 - Method of determining second derivatives of gravitational potential - Google Patents
Method of determining second derivatives of gravitational potentialInfo
- Publication number
- SU669306A1 SU669306A1 SU772510181A SU2510181A SU669306A1 SU 669306 A1 SU669306 A1 SU 669306A1 SU 772510181 A SU772510181 A SU 772510181A SU 2510181 A SU2510181 A SU 2510181A SU 669306 A1 SU669306 A1 SU 669306A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- derivatives
- determining
- gravitational potential
- torsional
- gravitational
- Prior art date
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
Изобретение относитс к способам измерени вторых производных потенциала гравитационного пол . Известен способ измерени вторых производных потенциала гравитационного пол путем определени периода колебаний крутильных весов, чувствительный элемент которых представл ет собой под вешенную на упругой нити симметричную гантельпару масс, соединенных жестким стержнем - коромыслом tl. Крутильна жесткость и, следовательно, период малых крутильных колебаний Т такой сис темы определ етс суммой крутильной жесткости упругой нити подвеса Т и гравитационной составл ющей, завис щей от вторых производных гравитационного потенциала Wxx и Wyy f .„. где Ко - момент инерции коромысла. Поэтому, измер период крутильнЫх колебаний , можно определ ть вторые произ водные гравитационного, потенциала, если предварительно измер ть .период крутильных колебаний такой системы в отсутствие близко расположенных масс, когда он определ етс только крутильной жесткостью нити. Известен также и способ измерени вторых производных гравитационного по-% тенциала по углу закручивани нити подвеса чувствительного элемента .крутильных весов 2. Первый из указанных способов обладает существенным недостатком, заключающимс в том, что точнрму определению периода крутильных .колебаний мешают принципиально неустранимые ма тниковые качани чувствительного элемента. Ма тниковые качани возникают прежде всего благодар возбуждению микросейс- мами колебаний точки поа.веса. Чувствительный элемент крутильных весов совершает сложное результирующее движение, складывающеес из крутильных колебаний и качаний. Поэтому экспериментальThe invention relates to methods for measuring second derivatives of the potential of a gravitational field. The known method of measuring the second derivatives of the potential of a gravitational field by determining the period of oscillation of torsional weights, the sensitive element of which is a symmetrical dumbbell of masses, connected by a rigid rod - a beam tl, hung on an elastic thread. The torsional stiffness and, therefore, the period of small torsional vibrations T of such a system is determined by the sum of the torsional stiffness of the elastic suspension thread T and the gravitational component depending on the second derivatives of the gravitational potential Wxx and Wyy f. where Ko is the moment of inertia of the rocker. Therefore, measuring the period of torsional vibrations, it is possible to determine the second derivatives of the gravitational potential, if we first measure the torsional vibrations of such a system in the absence of closely spaced masses, when it is determined only by the torsional rigidity of the thread. There is also a known method for measuring the second derivatives of the gravitational potential by the angle of twist of the suspension thread of the sensitive element of the torsional balance 2. The first of these methods has a significant disadvantage in that the fundamentally irremovable rocking oscillations of the sensitive vibration an item. Rotary oscillations arise primarily due to the microseism excited by oscillations of the point of weight. The sensing element of torsional weights makes a complex resultant movement, consisting of torsional vibrations and oscillations. Therefore, an experimental
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772510181A SU669306A1 (en) | 1977-07-22 | 1977-07-22 | Method of determining second derivatives of gravitational potential |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772510181A SU669306A1 (en) | 1977-07-22 | 1977-07-22 | Method of determining second derivatives of gravitational potential |
Publications (1)
Publication Number | Publication Date |
---|---|
SU669306A1 true SU669306A1 (en) | 1979-06-25 |
Family
ID=20719061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772510181A SU669306A1 (en) | 1977-07-22 | 1977-07-22 | Method of determining second derivatives of gravitational potential |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU669306A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2691622C2 (en) * | 2018-08-01 | 2019-06-17 | Олег Всеволодович Карагиоз | Method for determining gravitational constant based on contribution of carriages at moments of attraction |
RU2714518C2 (en) * | 2019-07-01 | 2020-02-18 | Олег Всеволодович Карагиоз | Method of gravitational constant determination with addition of oscillation period in the absence of carriages |
-
1977
- 1977-07-22 SU SU772510181A patent/SU669306A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2691622C2 (en) * | 2018-08-01 | 2019-06-17 | Олег Всеволодович Карагиоз | Method for determining gravitational constant based on contribution of carriages at moments of attraction |
RU2714518C2 (en) * | 2019-07-01 | 2020-02-18 | Олег Всеволодович Карагиоз | Method of gravitational constant determination with addition of oscillation period in the absence of carriages |
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