DZT0142-1994航空磁测技术规范.pdf

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1、""中华人民共和国地质矿产行业标准Dz/T0142一94航空磁测技术规范1995一01一27发布1995门2一01实施中华人民共和国地质矿产部发布目次主题内容与适用范围··················”·“···············”··················”······⋯⋯(1)引用标准··············“··············”·······················”····················“⋯(1)3术语··············

2、···“···········”··”。······“········”··”···················”··⋯⋯(1)4总则········”········”····”·”························，.·············”·····················“⋯(2)5技术设计···················”·”·”·························”··················”·················

3、·”⋯⋯(2)6仪器与装备····················”···································································⋯⋯(7)7测量飞行与野外工作·····································································⋯⋯(9)8数据处理与图件编制············”····“······················”··········

4、················⋯⋯(14)9成果报告······················”·“······“·”···················“·······························⋯⋯(20)附录A国际地磁参考场(QGRF)及地磁正常场校正(补充件)·····················”······一(22)附录B飞机磁场的硬件补偿方法(参考件...........................··························

5、··⋯⋯(27)附录C航空磁测工作设计编写提纲(参考件........................·”·························⋯⋯(30)附录D航空磁测成果报告编写提纲(参考件).·····························。········，···············⋯⋯‘31)附录E对GPS导航定位的有关规定(参考件)··········”·············，·····················⋯⋯(32)附录F航空磁测记录表格(参

6、考件).·······························································⋯⋯(33)中华人民共和国地质矿产行业标准DZ/T0142一94航空磁测技术规范主题内容与适用范围1.1主题内容本标准规定了航磁总量测量(简称航空磁测或航磁测量)的技术设计、仪器与装备、测量飞行与野外工作、数据处理与图件编制、成果报告等的基本技术要求和规则。1.2适用范围本标准适用于基础地质调查、能源、金属、非金属矿产地质勘查和水文、工程、环境、灾害地质勘查中的航空

7、磁测工作。其中的技术规则也适用于为其他目的而进行的航空磁测。弓i用标准GB/T14499地球物理勘查技术符号DZ/T0069地球物理勘查图式图例及用色标准术语3.1航磁总量(T)测量测量地磁场强度模量值的航空磁测。3.2导航定位校准点为了确定导航定位系统静态和动态工作精度，在选定的飞机停放点进行静态重复观测，此点称导航定位静态校准点，在选定的已知明显标志点上空重复观测，此点称做导航定位动态校准点。3.3飞行高度航空磁测飞机的飞行高度有两种表示方法:海拔飞行高度(又称绝对飞行高度)是指飞机飞行时距海

8、平面的高度，通常用气压高度仪获取海拔高度数据;离地飞行高度(又称相对飞行高度)是指飞机飞行时距正下方地表面的距离，通常多用雷达测高仪获取离地高度数据。3.4主测线与切割线航空磁测按测量比例尺规定的间距，平行铺设的测量飞行线称测线。与当地主要地质构造走向(或与主要成矿有关的异常走向)相垂直或基本垂直的测量线称主测线。与主测线呈大致正交的测量线称切割线。3.5控制网测量大区域编制航磁图时，为统一不同年代、不同测区航磁测量数据(或资料)的磁场水平，需要进行控制线测量飞行。由许多控制线组成