重力測量ppt課件(參考版)
2025-01-18 15:09本頁面
【正文】 Graviton – EG型重力儀 General Specifications .Total shipping weight 320kg in 6 containers .Total Volume: Cu .m .Floor space requirement 3 sq .m .Input voltage:110240 VAC (switchable)50 60HZ .Nominal power requirement 500w Performance Specifications . .Operating dynamic range: worldwide .Operating temperature range:10 deg C to 30 deg C. Gal?GEOPHYSICAL RESEARCH .Detection of vertical crustal motion .Complementary verification of displacements measured with GSP and VLBI .Determination of the geoid .Volcanic magma flow monitoring ( lakes) .Postglacial rebound studies .Uplift of subduction studies .Earthquake research .Long period tidal monitoring and modeling of earth anelasticity ENVIRONMENTAL MONITORING .Water table monitoring in deep and/or multiple aquifers .Nuclear waste management and cleanup .Global sea level studies for global warming EXPLORATION AND RESOURCE MANGEMENT .Oil exploration .Mineral exploration PRECISION MEASUREMENTS AND CALIBRATIONS .Pressure transducer and load cell calibration .Redefinition of the kilogram in the SI system of units .Big G determinations and the equivalence principle .Calibration of superconducting of other high precision relative gravity meters INERTIAL VAVIGATION .Gravity reference station determinations .Relative gravity work control points .Establishing geodetic tie points for gravity works .Defining the geoid A10絕對重力儀 Instrument Features .Quick setup .Easy to operate .Rugged .Fully automatic operation .Automated levelling .Battery operated .Temperature controlled sensor .Ideal roadside operation from a vehicle .Realtime gravity reduction General Specifications .Accuracy:10 Gal .Precision: 10 Gal in 10 minutes ??。 Romberg G型重力儀（美國），其測量精度為 40微伽，重復(fù)度為 1020微伽，測程為7000mGal。 重力基準(zhǔn)點(diǎn)的觀測精度優(yōu)于 重力基本點(diǎn)的相對觀測精度優(yōu)于 ， 平差后重力基本網(wǎng)的中誤差不大于 。全網(wǎng)由 133個(gè)點(diǎn)組成，其中有 17個(gè)基準(zhǔn)點(diǎn)（絕對重力點(diǎn)）和 116個(gè)基本點(diǎn)（相對重力聯(lián)測點(diǎn)）。 扭絲型彈簧重力儀： 三、重力基準(zhǔn) 世界重力基點(diǎn)： 世界公認(rèn)的一個(gè)重力起始點(diǎn)
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