В монографии представлены результаты экспериментальных и теоретических исследований влияния окружающей среды на широкополосную сейсмическую аппаратуру. Чтобы обеспечить решение современных задач геофизики, необходимо получение качественных сейсмических данных в широчайшем диапазоне; надо понимать, какой шум в сейсмические данные вносят несейсмические источники, как исключить или уменьшить этот шум. В данной работе рассматривается влияние изменений температуры, атмосферного давления, магнитного поля, влажности, исследовано влияние гроз, вибрация, воздушные потоки, гравитационное возбуждение и т.д. Были исследованы элементы конструкций аппаратуры, броуновское движение, неупругая деформация пружин, проверена чувствительность передаточной функции широкополосного прибора к вариациям параметров элементов около номинального значения и т.д. Теоретические исследования представлены в самом общем виде и могут быть применимы к любым видам сейсмической аппаратуры. Предложены рекомендации по снижению чувствительности приборов к внешним воздействиям.
Монография предназначена для сейсмологов, специалистов в области сейсмометрии, разработчиков аппаратуры. Изложенные здесь подходы могут быть полезны при наблюдении тонких эффектов, прецизионных измерениях и экспериментах в различных областях знания.
The monograph introduces the experimental and theoretical studies dedicated to environmental sensitivity of broadband seismic devices. Environmental sensitivity is sensitivity of instrument to environment (changes of pressure, temperature, magnetic field, etc.). To provide the best quality of the seismic data you have to understand the non-seismic noise sources and how to avoid them. This book considers the effects of changes of temperature, air pressure, magnetic field, humidity, examines the effects of thunderstorms, vibration, air currents, gravitational excitation, and so on. We examined the design elements of instruments, determined the effects of inelastic spring strain, Brownian motion, verified the sensitivity of the broadband instrument's response function to variations of the parameters of the elements around nominal values, and so on. The theoretical studies are presented in the most general form possible so that the techniques could be applied to any types of seismic instruments. Practical recommendations are given as to the design of instruments in order to reduce the noise.
The monograph is intended for seismologists, experts in the field of seismometry, developers of equipment. The approaches presented here can be useful in monitoring of thin effects, high-precision measurements and experiments in various fields of knowledge.
V monografii predstavleny rezultaty eksperimentalnykh i teoreticheskikh issledovaniy vliyaniya okruzhayushchey sredy na shirokopolosnuyu seysmicheskuyu apparaturu. CHtoby obespechit reshenie sovremennykh zadach geofiziki, neobkhodimo poluchenie kachestvennykh seysmicheskikh dannykh v shirochayshem diapazone; nado ponimat, kakoy shum v seysmicheskie dannye vnosyat neseysmicheskie istochniki, kak isklyuchit ili umenshit etot shum. V dannoy rabote rassmatrivaetsya vliyanie izmeneniy temperatury, atmosfernogo davleniya, magnitnogo polya, vlazhnosti, issledovano vliyanie groz, vibratsiya, vozdushnye potoki, gravitatsionnoe vozbuzhdenie i t.d. Byli issledovany elementy konstruktsiy apparatury, brounovskoe dvizhenie, neuprugaya deformatsiya pruzhin, proverena chuvstvitelnost peredatochnoy funktsii shirokopolosnogo pribora k variatsiyam parametrov elementov okolo nominalnogo znacheniya i t.d. Teoreticheskie issledovaniya predstavleny v samom obshchem vide i mogut byt primenimy k lyubym vidam seysmicheskoy apparatury. Predlozheny rekomendatsii po snizheniyu chuvstvitelnosti priborov k vneshnim vozdeystviyam. Monografiya prednaznachena dlya seysmologov, spetsialistov v oblasti seysmometrii, razrabotchikov apparatury. Izlozhennye zdes podkhody mogut byt polezny pri nablyudenii tonkikh effektov, pretsizionnykh izmereniyakh i eksperimentakh v razlichnykh oblastyakh znaniya. The monograph introduces the experimental and theoretical studies dedicated to environmental sensitivity of broadband seismic devices. Environmental sensitivity is sensitivity of instrument to environment (changes of pressure, temperature, magnetic field, etc.). To provide the best quality of the seismic data you have to understand the non-seismic noise sources and how to avoid them. This book considers the effects of changes of temperature, air pressure, magnetic field, humidity, examines the effects of thunderstorms, vibration, air currents, gravitational excitation, and so on. We examined the design elements of instruments, determined the effects of inelastic spring strain, Brownian motion, verified the sensitivity of the broadband instrument's response function to variations of the parameters of the elements around nominal values, and so on. The theoretical studies are presented in the most general form possible so that the techniques could be applied to any types of seismic instruments. Practical recommendations are given as to the design of instruments in order to reduce the noise. The monograph is intended for seismologists, experts in the field of seismometry, developers of equipment. The approaches presented here can be useful in monitoring of thin effects, high-precision measurements and experiments in various fields of knowledge.
The monograph presents the results of experimental and theoretical studies of the effect of the environment on the broadband seismic equipment. To provide a solution to modern problems of Geophysics, is necessary to obtain quality seismic data in a wide range; it is necessary to understand what the noise in the seismic data contribute non-seismic sources as to eliminate or reduce this noise. This paper examines the effects of changes in temperature, atmospheric pressure, magnetic fields, humidity, the influence of thunderstorms, vibration, air currents, gravitational excitation, etc. were investigated, structural elements of the apparatus, Brownian motion, inelastic deformation of the springs, checked the sensitivity of the transfer function of the broadband device to variations of the parameters of the elements about nominal values, etc. Theoretical studies presented in very General and can be applied to all types of seismic equipment. Proposed recommendations for reducing the sensitivity of the devices to external influences.
This monograph is intended for seismologists, experts in the field of seismometry, developers of equipment. The approaches outlined here may be useful when monitoring subtle effects precision measurements and experiments in various fields of knowledge.
The monograph introduces the experimental and theoretical studies is dedicated to environmental sensitivity of broadband seismic devices. Environmental sensitivity is sensitivity of instrument to environment (changes of pressure, temperature, magnetic field, etc.). To provide the best quality of the seismic data you have to understand the non-seismic noise sources and how to avoid them. This book considers the effects of changes of temperature, air pressure, magnetic field, humidity, examines the effects of thunderstorms, vibration, air currents, gravitational excitation, and so on. We examined the design elements of instruments, determined the effects of inelastic spring strain, Brownian motion, verified the sensitivity of the broadband instrument''s response function to variations of the parameters of the elements around nominal values, and so on. The theoretical studies are presented in the most general form possible so that the techniques could be applied to any types of seismic instruments. Practical recommendations are given as to the design of instruments in order to reduce the noise.
The monograph is intended for seismologists, experts in the field of seismometry, developers of equipment. The approaches presented here can be useful in monitoring effects of thin, high-precision measurements and experiments in various fields of knowledge.
