Siab -Kev Tshawb Fawb Seismic Refraction Cov Khoom Siv rau Kev Tshawb Fawb Geophysical

Cov Khoom Siv Seismic Refraction Survey no yog tsim los rau kev tshawb nrhiav qhov tseeb subsurface, geological maps, thiab kev tshawb nrhiav engineering. Nws yog dav siv los txheeb xyuas cov txheej hauv av, cov qauv pob zeb, kev ua txhaum, thiab cov dej hauv av, ua rau nws yog ib qho tseem ceeb rau cov pab pawg tshawb fawb geophysical thiab engineering tej yaam num.

Nruab nrog 32-ntsis siab- qhov tseeb ADC thiab cov suab nrov qis qis, cov khoom siv tshawb nrhiav seismic refraction ua kom ntseeg tau cov ntaub ntawv tau txais txiaj ntsig nrog ntau yam kev ua haujlwm siab thiab cov teeb liab pom tseeb. Cov kev xaiv 2Hz thiab 5Hz sensors tso cai hloov pauv hloov mus rau ob qho tib si ntiav thiab sib sib zog nqus refraction kev tshawb fawb, txhim kho kev tshawb pom qhov tseeb hauv qhov sib txawv geological ib puag ncig.

Nrog IP68 kev tiv thaiv dej tsis zoo, kev ua haujlwm kub ntau (-40℃rau +70 degree), thiab lub roj teeb ntev ntev txog 40 hnub, cov khoom siv tshawb nrhiav seismic refraction ua haujlwm ruaj khov txawm tias nyob hauv qhov hnyav hnyav. Nws cov qauv compact, muaj peev xwm xa tawm wireless, thiab kev sib koom ua ke GNSS qhov chaw ua haujlwm ua haujlwm yooj yim, pab cov neeg siv txo qis kev ua haujlwm thiab txhim kho kev soj ntsuam kev ua haujlwm.

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Technical Parameters ntawm Seismic Refraction Survey Equipment

Lub cev
Parameter	Index
Qhov hnyav	1750g (5Hz) / 2450g (2Hz) / Tsis muaj pob
Loj	90mmx100mmx128mm (5Hz) / 90mmx100mmx189mm (2Hz)
Ua haujlwm kub	-40℃rau +70 degree
Waterproof	IP68
Endurance Lub Sijhawm @ 25 degree	40 hnub (24 teev tsis tu ncua ua haujlwm sab hauv cia)
Them sij hawm	6,5h ua
Ntsuas
Parameter	Index
Tus naj npawb ntawm Channel	3 channel △- ∑ ADC
ADC	32bit ib
Tus nqi piv txwv	0.25ms, 0.5ms, 1ms, 2ms, 4ms, 8ms, 10ms, 20ms
Preamplifier Tau Txais	0-24dB (6dB kauj ruam)
Low Cut Lim	1Hz, DC tshem tawm lossis tua
Anti Aliasing Filter	206.5Hz @ 2ms (82.6% Nyquist zaus) xaiv tau Linear theem lossis theem qis kawg
OdB @Max Input	2.5 Vpeak ua

Sib npaug Input Noise @12dB	0.5uV@0.25ms/0.2uV@2ms/0.14uV@4ms
Instantaneous Dynamic Range @12dB	118.9dB@0.25ms/126.8dB@2ms/130dB @4ms
Tag nrho Dynamic Range	145dB ib
Timing Standard	<1ppm
Lub sij hawm raug	±10μs
Internal Storage	Ntxiv los ntawm 32GB mus rau 128GB
Ua hauv GPS	GPS, BDS, GLONASS, GNSS (Concurrent txais tos) yog siv rau lub sijhawm thiab qhov chaw
Sensor
Parameter	Index	Index
Optional Detector	5 Hz	2 Hz
Ntuj zaus (Hz)	5±7.5%	2±15%
DC tsis kam (Ω)	1850±5%	6400±10%
rhiab heev (V/m/s)	80±5%	260±15%
Damping	0.7±7.5%	0.7±15%
Distortion	Tsawg dua lossis sib npaug li 0.2%	Tsawg dua lossis sib npaug li 3%
Aliasing (Hz)	Ntau dua los yog sib npaug rau 120	Ntau dua lossis sib npaug li 90
Siv tau ntau zaus (Hz)	0.2~1000	0.1~300

Daim ntawv thov ntawm Seismic Refraction Survey Equipment

Cov cuab yeej tshawb nrhiav seismic refraction no tau siv dav hauv:

Kev tshawb nrhiav geological qauv
Engineering site tshawb fawb
Mining thiab kev tshawb nrhiav ntxhia
Kev tshawb nrhiav dej hauv av thiab kev tshawb fawb hydrology
Txoj kev, railway, thiab kev tsim kho vaj tse
Fault thiab subsurface txheej tsom xam

Nws yog tshwj xeeb tshaj yog haum rau tej yaam num uas yuav tsum tau muaj tseeb subsurface cov ntaub ntawv thiab ntev - lub sij hawm xa mus rau teb.

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Vim li cas thiaj xaiv Cov Khoom Siv Tshawb Nrhiav Seismic Refraction?

Cov khoom siv geophysical ib txwm muaj feem ntau ntsib teeb meem xws li cov ntaub ntawv tsis ruaj khov, siv roj teeb tsawg, thiab kev hloov pauv tsis zoo rau qhov chaw hnyav. Cov cuab yeej tshawb nrhiav seismic refraction no daws cov teeb meem no los ntawm kev muab: