磁强计






先驱者十号和十一号上的氦矢量磁强计


磁强计（英语：magnetometer）指的是各种用于测量磁场的仪器，也称磁力仪、高斯计。


在国际单位制中描述磁场的物理量是磁感应强度，单位是特斯拉。由于1特斯拉意味着非常强的磁场，地球科学上常用纳特（nT）来作为测量单位，工程上常用的CGS制（厘米-克-秒制）中，单位则是高斯。在早期，电磁领域高斯单位盛行，因此磁强计也称为高斯计。


磁感应强度是矢量，具有大小和方向特征，只测量磁感应强度大小的磁强计称为标量磁强计，而能够测量特定方向磁场大小的磁强计称为矢量磁强计。


能够测量磁场的物理原理有很多，根据不同原理进行分类，常见标量磁强计原理有质子旋进磁强计，Overhauser磁强计，碱金属光泵磁强计等，常见的矢量磁强计有磁通门磁强计、磁阻磁强计等。



外部連結






维基共享资源中相关的多媒体资源：Magnetometer


  • Earthquake forecasting techniques and more research on the study of electromagnetic fields

  • Dan's Homegrown Proton Precession Magnetometer Page

  • USGS Geomagnetism Program

  • A home built PPM that actually works

  • Earth's Field NMR (EFNMR)

  • Magnetic archaeological prospection (Swedish National Heritage Board)

  • Magnetometer – Measuring the magnetic field of Earth

  • Example of a portable EMF meter

  • Space-based magnetometers

  • Practical guidelines for building a magnetometer by hobbyists – Part 1 Introduction

  • Practical guidelines for building a magnetometer by hobbyists – Part 2 Building


  • The new INTERMAGNET 1-second standard fluxgate magnetometer. V.Korepanov, A. Marusenkov (Lviv Centre of Institute for Space Research, Lviv, Ukraine), J.Rasson (Royal Meteorological Institute, Dourbes, Belgium)




-

Popular posts from this blog

Daylamites

Image
Map showing Daylam in western Tabaristan. The Daylamites or Dailamites (Middle Persian: Daylamīgān ; Persian: دیلمیان ‎ Deylamiyān ) were an Iranian people inhabiting the Daylam—the mountainous regions of northern Iran on the southern shore of the Caspian Sea. [1] They were employed as soldiers from the time of the Sasanian Empire, and long resisted the Muslim conquest of Persia and subsequent Islamization. In the 930s, the Daylamite Buyid dynasty emerged and managed to gain control over much of modern-day Iran, which it held until the coming of the Seljuq Turks in the mid-11th century. Contents 1 Origins, language and equipment 2 History 2.1 Pre-Islamic period 2.1.1 Seleucid and Parthian period 2.1.2 Sasanian period 2.2 Islamic period 2.2.1 Resistance to the Arabs 2.2.2 The Daylamite expansion 3 Culture 3.1 Names 3.2 Religion 3.3 Customs, equipment and appearance 4 References 5 Sources Origins, langu...
Read more

Czechs

Image
Czechs Češi Flag of the Czech Republic Total population c.   10–12 million Regions with significant populations   Czech Republic    6,732,104 [1] [nb 1] – 9 246 784 [2] Significant diasporic populations in:   United States 1,462,000 [3]   Canada 94,805 [4]   Germany 60,000   Israel 50,000   Argentina 45,000   United Kingdom 45,000 [5]   Austria 40,324 [6]   Italy 40,000   France 38,000   Slovakia 30,367 [7]   Australia 21,196 [8]    Switzerland 20,000   Croatia 9,641 (2011)   Chile 8,600   Ukraine 11,000   Sweden 7,175 (2001)   Ireland 5,451 [9]   Spain 5,622 (2006)   Russia 5,000–6,000   Netherlands 3,500   Romania 3,339 (2002)   Poland 3,000   South Africa 2,300   Mexico 2,000   Venezuela 2,000   Serbia 1,824 (2011) [10]   Colombia 1,200   New Zealand 1,083   Kazakhstan 1,000 [11]   Bo...
Read more

Lambaréné

Image
Place in Moyen-Ogooué, Gabon Lambaréné Street in Lambaréné Lambaréné Location in Gabon Coordinates: 0°41′18″S 10°13′55″E  /  0.68833°S 10.23194°E  / -0.68833; 10.23194 Coordinates: 0°41′18″S 10°13′55″E  /  0.68833°S 10.23194°E  / -0.68833; 10.23194 Country   Gabon Province Moyen-Ogooué Population (2013 census)  • Total 38,775 Lambaréné is a town and the capital of Moyen-Ogooué in Gabon. With a population of 38,775 as of 2013, it is located 75 kilometres south of the equator. Lambaréné is based in the Central African Rainforest at the river Ogooué. This river divides the city into 3 districts: Rive Gauche, Ile Lambaréné and Rive Droite. The Albert Schweitzer Hospital and the districts Adouma and Abongo are located on Rive Droite. The districts Atongowanga, Sahoty, Dakar, Grand Village, Château, Lalala and Bordamur build the Ile Lambaréné. The majority of the people in Lambaréné live in the district Isaac located on Rive Gauche. This distr...
Read more