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磁強(qiáng)計(jì)Magnetometer磁強(qiáng)計(jì)是測(cè)量磁感應(yīng)強(qiáng)度的儀器

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磁強(qiáng)計(jì)

Magnetometer

磁強(qiáng)計(jì).jpg

磁強(qiáng)計(jì)是測(cè)量磁感應(yīng)強(qiáng)度的儀器。根據(jù)小磁針在磁場(chǎng)作用下能產(chǎn)生偏轉(zhuǎn)或振動(dòng)的原理制成。而從電磁感應(yīng)定律可以推出，對(duì)于給定的電阻R的閉合回路來(lái)說(shuō)，只要測(cè)出流過(guò)此回路的電荷q，就可以知道此回路內(nèi)磁通量的變化。這也就是磁強(qiáng)計(jì)的設(shè)計(jì)原理，用途之一是用來(lái)探測(cè)地磁場(chǎng)的變化。

Magnetometer is an instrument for measuring magnetic induction intensity. According to the principle that a small magnetic needle can deflect or vibrate under the action of a magnetic field. From the law of electromagnetic induction, it can be deduced that for a closed circuit with a given resistance R, the change of magnetic flux in the circuit can be known as long as the charge Q flowing through the circuit is measured. This is also the design principle of magnetometers. One of its uses is to detect changes in the geomagnetic field.

磁強(qiáng)計(jì)是用來(lái)測(cè)量磁感應(yīng)強(qiáng)度的傳感器,在工業(yè)、農(nóng)業(yè)、交通運(yùn)輸、國(guó)防、航空航天、海洋、氣象、醫(yī)療衛(wèi)生等領(lǐng)域均有廣泛應(yīng)用。在地質(zhì)勘探領(lǐng)域,它可用于地磁場(chǎng)變化監(jiān)測(cè)和地質(zhì)年代檢測(cè);在醫(yī)療衛(wèi)生領(lǐng)域,它常被用來(lái)檢測(cè)人體磁場(chǎng)并輔助疾病診斷;在國(guó)防上,它可以應(yīng)用在磁性掃雷、探測(cè)、磁波通訊、磁探針和磁導(dǎo)航;在外層空間探測(cè)中,它被用來(lái)進(jìn)行天體運(yùn)行、演變的磁場(chǎng)檢測(cè);而在衛(wèi)星姿態(tài)測(cè)控中,可通過(guò)磁強(qiáng)計(jì)測(cè)量空間磁場(chǎng)來(lái)提供衛(wèi)星姿態(tài)信息

Magnetometers are sensors used to measure magnetic induction intensity. They are widely used in industry, agriculture, transportation, national defense, aerospace, ocean, meteorology, medical and health and other fields. In the field of geological exploration, it can be used for geomagnetic field change monitoring and geological age detection. In the field of medical and health care, it is often used to detect human magnetic field and assist in disease diagnosis. In national defense, it can be used in magnetic mine clearance, bomb detection, magnetic wave communication, magnetic probe and magnetic navigation. In outer space exploration, it is used to detect the magnetic field of celestial bodies' movement and evolution. In satellite attitude measurement and control, magnetometers can be used to measure the space magnetic field to provide satellite attitude information.