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Finding Trapped Miners Using a Prototype Seismic Recording System Made from Music-Recording Hardware: Open-File Report 2009-1095 by Thomas L. Pratt, United U. S. Department of the Interior - Paperback
60.90 درهم

Finding Trapped Miners Using a Prototype Seismic Recording System Made from Music-Recording Hardware: Open-File Report 2009-1095 by Thomas L. Pratt, United U. S. Department of the Interior - Paperback

كن أول من يقيِّم هذا المنتج 

60.90 درهم 

  - ستوفر -60.90 درهم
الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781288690183
الفئات
سياسة
الكاتب
Thomas L. Pratt, United U. S. Department of the Interior
الناشر
Bibliogov
الوصف:

The goal of this project was to use off-the-shelf music recording equipment to build and test a prototype seismic system to listen for people trapped in underground chambers (mines, caves, collapsed buildings). Previous workers found that an array of geophones is effective in locating trapped miners; displaying the data graphically, as well as playing it back into an audio device ...

تشحن من الولايات المتحدة
اشحن الى دبي (تغيير المدينة)
التوصيل خلال الثلاثاء ٢٥ ديسمبر - الخميس ٢٧ ديسمبر الي دبي

حالة السلعة:
جديدة
البائع:
InternationalBookStore (85% تقييم ايجابي)

معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288690183
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354360105
    المؤلفين
    الكاتب
    Thomas L. Pratt, United U. S. Department of the Interior
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288690183
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354360105
    المؤلفين
    الكاتب
    Thomas L. Pratt, United U. S. Department of the Interior
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    The goal of this project was to use off-the-shelf music recording equipment to build and test a prototype seismic system to listen for people trapped in underground chambers (mines, caves, collapsed buildings). Previous workers found that an array of geophones is effective in locating trapped

    The goal of this project was to use off-the-shelf music recording equipment to build and test a prototype seismic system to listen for people trapped in underground chambers (mines, caves, collapsed buildings). Previous workers found that an array of geophones is effective in locating trapped miners; displaying the data graphically, as well as playing it back into an audio device (headphones) at high speeds, was found to be effective for locating underground tapping. The desired system should record the data digitally to allow for further analysis, be capable of displaying the data graphically, allow for rudimentary analysis (bandpass filter, deconvolution), and allow the user to listen to the data at varying speeds. Although existing seismic reflection systems are adequate to record, display and analyze the data, they are relatively expensive and difficult to use and do not have an audio playback option. This makes it difficult for individual mines to have a system waiting on the shelf for an emergency. In contrast, music recording systems, like the one I used to construct the prototype system, can be purchased for about 20 percent of the cost of a seismic reflection system and are designed to be much easier to use. The prototype system makes use of an $3,000, 16-channel music recording system made by Presonus, Inc., of Baton Rouge, Louisiana. Other manufacturers make competitive systems that would serve equally well. Connecting the geophones to the recording system required the only custom part of this system - a connector that takes the output from the geophone cable and breaks it into 16 microphone inputs to be connected to the music recording system. The connector took about 1 day of technician time to build, using about $300 in off-the-shelf parts. Comparisons of the music recording system and a standard seismic reflection system (A 24-channel 'Geode' system manufactured by Geometrics, Inc., of San Jose, California) were carried out at two locations. Initial.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Thomas L. Pratt, United U. S. Department of the Interior
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288690183
    • عدد الصفحات: 42
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.09 inches
 

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