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seismometer n.【地質學;地理學】(比 seismograph 精密...

seismometric

The seismic signals detected enabled the determination of the epicentres of intense earthquakes when analysed with data obtained by seismographs in other countries . the long - period seismometer now in use at the hong kong observatory headquarters has been in operation for nearly 50 years , since the international geophysical year of 1958 香港天文臺計劃明年購置一臺寬頻地震儀取代長周期地震儀,令地震波的分析及地震定位更精確,亦可收集更豐富的地震數據供建筑工程界使用,寬頻地震儀對0

The new seismometer will enable seismic analysis and epicentre determination to be done with higher accuracies , and will also provide more comprehensive seismic information for use by the construction industry . a broadband seismometer responds well to seismic waves with periods from 0 . 02 to 100 seconds , overcoming the limitations of long - period and short - period seismometers . from 1979 to 2004 , the hong kong observatory has recorded 51 locally felt earth tremors . among these events , six earthquakes occurred within hong kong including one in 1983 at mai po , two in 1982 and three in 1995 over the sea east of the lantau island 自一九七九年至二四年,香港天文臺共錄得五十一次香港市民有感的地震,其中六次發生在香港境內,包括一九八三年有一次在米埔,一九八二年有兩次及一九九五年有三次在大嶼山東部海域,這些境內地震引起的震動均屬十分輕微,強度只有黎克特制一至三級。

At the same time , the hong kong observatory also began to keep a record of locally felt tremors reported by the people of hong kong . the seismometer used was of the long - period type , sensitive to seismic waves with periods around 15 seconds and was suitable for detecting distant earthquakes 天文臺總部使用的地震儀屬于長周期地震儀,對震動周期約15秒的震動最敏感,適合監測遠處發生的地震,結合其他國家的地震站數據可以測定強烈地震的震央位置。

It main requires some excitation to make testing objects produce vibration response . directly presenting the charactestic of excitation and system vibration response by seismometer ( e . g . characterstic of displacement , velocity and acceleration ) 它主要是通過某種激勵方法使實驗對象產生一定的振動響應,通過測振器直接測量出激勵力與系統振動的響應特性(例如:位移、速度、加速度函數的時間歷程) 。

Usually , the best practical design of ims array adopt concentric circles deployment , i . e . to deploy 3 sp seismometers on the inner ring and five ones on the outer ring with near equidistance , and then with one broad - band seismometer at the center 為了達到全方位均勻監測的目的, ims臺陣最實用的設計,通常采取同心圓布局方案,即在內環和外環分別基本等距地部署3個和5個子臺,還有一個則落在圓心上。

The first - ever seismometer was invented by zhang heng of china ' s han dynasty around 132 c . e . it was called houfeng didong . this instrument measured movements of the earth , and seasonal winds 第一個地震觀測儀是大約在公元132年由中國漢代的張衡發明的。被稱作候風地動。這個儀器被用來測量地球的運動和季風。

The hong kong observatory plans to acquire a broadband seismometer next year to replace the existing long - period seismometer 02秒至100秒的震動都有一定的敏感度,彌補了現時長周期及短周期地震儀的不足。

Imagine an online seismometer that notifies a student of a seismic event through email or instant messaging 試想,一個在線用于通過電子郵件或者即時消息通知試驗者地震事件的地震檢波器。

According to ctbto , ims array comprises 9 vertical short peroid ( sp ) seismometers and a broad - band seismometer Ctbto規定ims臺陣應配置9臺短周期垂直向地震儀加一臺寬頻帶地震儀。

Orientation relying on magnitism must have error if there is ferromagnetism around the seismometer 當地震計周圍存在鐵磁性物質時,使用傳統的磁定向會引起非常大的誤差。

An earthquake with a magnitude of less than 2 . 0 is so slight that usually only a seismometer can detect it 小于2 . 0震級的地震非常輕微,通常只有地震檢波器才能探測到。

As is well known , geologists can measure and locate an earthquake with a seismometer 眾所周知,地質學家能用地震檢波器來測量和定位地震發生的等級和位置。

Orientation is very important for a seismometer , whether it is installed on surface or in borehole 摘要無論地震計在地表或是井下使用,都必須精確定向。

Dynamic weighted fit method in step calibration for ultra - broadband and very - broadband seismometer 超寬與甚寬頻帶地震計階躍標定的加權動態擬合法

Interface of seismometer 地震計接口

Accelerating type seismometer 加速型地震儀

The application of blasting seismometer in limiting the damage to buildings 爆破震動自記儀在控制爆震危害中的應用

Observatory professional staff explaining the operation of seismometer 天文臺職員講解地震儀的運作

Principle of sma - 1 seismometer for ground motion and its maintenance 1強震儀原理及特殊故障維修