秒速时时网址

传感器
TMR2102 大动态范围TMR线性传(chuan)感器
  • sop8
  • dfn8l(3x3x0.75)
  • sop8
  • dfn8l(3x3x0.75)
产品型号:TMR2102
兼容型号:MMLP57F
磁阻结构:全桥
供电电压:0~7 V
敏度(mV/V/Oe):4.9
电阻(kΩ):90/45
饱和场(Oe):±90
敏感方向:X轴
磁滞(Oe):0.1
本底噪声(nT/rt(Hz) @1Hz):~10
封装形式:SOP8 DFN8L(3×3×0.75)
交付周期:In stock
规格说明书:
  • TMR2102

产品(pin)概述:TMR2102采(cai)用(yong)了一个独(du)特的(de)推挽式惠斯(si)通全桥结构设计,包含四个非屏(ping)蔽高(gao)灵敏(min)(min)度(du)TMR传感器(qi)元件(jian)。当外(wai)加磁场沿平(ping)行于传感器(qi)敏(min)(min)感方向(xiang)变化时,惠斯(si)通全桥提供(gong)差分(fen)电压输出(chu),并且该输出(chu)具有良好的(de)温度(du)稳定(ding)性。TMR2102性能(neng)优越(yue),采(cai)用(yong)两(liang)种封(feng)装形式:SOP8(6mm × 5mm × 1.5mm)和(he)DFN8(3mm × 3mm × 0.75mm)。

 

产(chan)品特(te)性:(1)隧道磁电阻(TMR)技术;(2)高灵敏度;(3)宽动态范围;(4)更低功耗;(5)优越的温度稳定性;(6)极低的磁滞;(7)宽工作电压范围

 

典型(xing)应用:(1)磁力计;(2)电流传感器;(3)工业流量计;(4)位置传感器;(5)角度传感器

sop8 dfn8l(3x3x0.75)


参考文献:

[1]

摘要:The high-noise level at low frequency in magnetic tunnel junction (MTJ) sensors is the key problem for their applications in measuring the low values of static magnetic field. In this paper, we investigated a shielding-type flux chopper to resolve the 1/f noise issue. By the using a cylindrical chopper with its axis perpendicular to the sensing direction of MTJ sensor, the noise at 1 Hz was reduced from 4 to 0.3 nT/rtHz by chopping the magnetic flux at 5 kHz. The reduction in noise can be qualitatively explained by the 1/f behavior and the chopping efficiency. The proposed method is promising in enhancing the detectivity of MTJ sensor for sensing the static geomagnetic field.

出(chu)版源(yuan):《IEEE Transactions on Magnetics》, 2014, 50(11):1-4

关(guan)键(jian)词:1/f noise / magnetic field measurement / magnetic flux / magnetic noise / magnetic sensors / magnetic shielding / magnetoresistive devices / tunnelling magnetoresistance / 1/f noise / MTJ sensor


[2]

摘要(yao):Three dimensional magnetic sensors play important roles for multiple applications, e g position sensing, automotive application, and geomagnetic navigation. In recent decades, many groups developed various kinds of vector magnetometer, including Hall effect, the anisotro-pic magnetoresistance (AMR) effect, giant magnetoresistance (GMR) sensors, and tunneling magnetoresistance (TMR) magnetometer. For all the designs, the inaccuracy in alignment of sensors or flux-guide leads to non-orthogonality between each sensing directions Another issue on three-axis magnetometer is to achieve a low-noise without increasing the size too much. In order to deal with this issues, several extrinsic methods have been reported, e g TMR arrays, flux concentrator, and flux-chopping techniques. Interestingly, the 1/f noise can be reduced by a factor of 12 with a shielding type magnetic flux chopper, which was realized successfully in the ref. In this work, we design and manufacture a low-noise vector magnetometer comprising three TMR sensors orthogonally aligned and placed in the central of a shielding flux chopper The non-orthogonality issue can be solved by the calibration process using a voltage-to-field transfer matrix.

出(chu)版源(yuan):IEEE Magnetics Conference, 2015

关键(jian)词(ci):1/f noise / Hall effect / geomagnetic navigation / giant magnetoresistance / magnetic anisotropy / magnetic sensors / magnetometers / magnetoresistive devices / tunnelling magnetoresistance / 1/f noise

                                                                                                                         

申(shen)明:(1)多维科技承诺本说明(ming)书所提(ti)供的(de)信息是准确和可靠的(de),所公开(kai)的(de)技术未(wei)触犯其他公司(si)的(de)专(zhuan)利且(qie)具有自(zi)主知识产权。多维科(ke)技具有保留为提高产(chan)品质量(liang),可靠性和功能以更改产(chan)品规格的(de)权(quan)力(li)。多维科(ke)技对任何超(chao)出(chu)产(chan)品应用范围(wei)而造成的(de)后果不承担法律责任。(2)“多维(wei)科技(ji)“和“多维(wei)科技(ji) 感知未来”是秒(miao)速(su)时时网址(zhi)有限公司的合(he)法注册商(shang)标。

  • 在线客服