M.A.E. Apparecchiature Elettroniche srl LST453 地震仪器

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  • LST453

  • 地震仪器

  • M.A.E. Apparecchiature Elettroniche srl

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  • M.A.E. Apparecchiature Elettroniche srl

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特性

  • 铝制支架
  • 拉动滑道
  • 地震电缆
  • 4.5已安装和连接htz检波器
  • 牵引附件
  • 交通情况
  • 铝支持
  • 把配件
  • 运输箱

A land streamer is an array of geophones designed to be towed along the ground. The name originates from marine streamers which are strings of hydrophones towed behind boats for marine seismic surveys. Land geophysicists have long envied the high productivity achieved in marine surveys. Now it appears that highly-productive reflection, refraction, and surface-wave surveys can be achieved on land.","Land streamers have been developed by individuals using a variety of innovative methods. Additional references can be found on the web by searching for \"land streamer\", including papers comparing data quality and productivity between towed array and conventional surveys. As a general rule, geophones planted in the ground set the standard for data quality, but land streamers record excellent data in many applications while making the survey economically feasible. A \"good\" affordable survey often will be a better choice than a \"great\" survey that can't be done due to its cost.","The land-streamer system will provide better data, be less expensive, more reliable, and easier to use than individually constructed units. To satisfy the needs of individual applications and users, systems will be available with a wide variety of geophones in single or multi-component and fixed or gimbaled versions.","The top plate is drilled and tapped for standard 5\/16 and 3\/8-inch male threaded geophone cases from Sensor, Mark Products, Geospace and others, or a 3\/8-inch flat head screw can be inserted for female-studded geophone cases, such as the 3-component Geospace GS-3C case shown here.","The base plate is cast of a special Cr-Mn-Mo alloy steel developed for the hard-rock mining industry. Heat treated, it is highly abrasion-resistant for long use. The tripod support provides stability, even if the ground surface has loose material, so the sensor will respond properly to ground vibrations. The legs will tend to plow into soft ground for better coupling.","The 5-cm wide webbing is reinforced with Kevlar® for tensile strength and anti-stretch properties. Loops are woven in the top surface at short intervals so that the geophone cables can be secured to the top surface with nylon cable ties, thus protecting the cables from dragging on the ground. The Kevlar® strap is firmly clamped between the top and bottom plates without perforating or damaging the webbing. This maintains the 2200 Kg tensile strength of the webbing and also allows the placement (and re-placement) of the geophones at any interval chosen by the user. Choose Metric, English or even non-linear geophone intervals as allowed by your spread cables. When used with longer group intervals on rough ground, stations can tip over. In that case, just install the Anti-rotation wing (pictured) provided with the system.","- SPECIFICATIONS - ","Kevlar Webbing, 24 stations spacing 3 m, provided with:","The system can be used also with geophones of different frequencies.

LST453 地震仪器技术参数

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特 性
频率范围 4.5 Hz
通道数量 24
物 理
外观形式 Portable
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产品形式 Sensor or Transducer
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产品类别 Seismic Instruments

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