Magnetic Field Sensors
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Magnetic Field Sensors

Magnetic field sensors are devices that detect and measure magnetic fields around permanent magnets, current conductors, and electrical devices. As the world becomes increasingly electrified, demand for improved positional and current sensing has grown in turn. ADI MagIC+™ breakthrough multiturn sensing technology operates with zero-power enabling more space-efficient solutions and ADI MagIC+™ magnetic field sensors create more accurate solutions. Analog Devices’ Magneto Resistive Sensing Technologies, signal conditioning capabilities, and deep domain expertise are enabling new, innovative, and high-performance sensing solutions for both position and current measurements across a broad range of applications and markets.
Magnetic field sensors are devices that detect and measure magnetic fields around permanent magnets, current conductors, and electrical devices. As the world becomes increasingly electrified, demand for improved positional and current sensing has grown in turn. ADI MagIC+™ breakthrough multiturn sensing technology operates with zero-power enabling more space-efficient solutions and ADI MagIC+™ magnetic field sensors create more accurate solutions. Analog Devices’ Magneto Resistive Sensing Technologies, signal conditioning capabilities, and deep domain expertise are enabling new, innovative, and high-performance sensing solutions for both position and current measurements across a broad range of applications and markets.

子分类

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磁传感以异向性磁电阻(AMR)位置传感器解决方案为基础,为编码器应用提供可靠且准确的位置检测。位置反馈用于执行直接位置控制,或推断伺服驱动器的转速和执行机器速度控制。与光学编码器相比,磁传感提供更低成本的解决方案,且在易受灰尘和振动影响的工业环境中提供更为可靠的解决方案。
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ADI公司的霍尔效应磁场传感器集成大容量霍尔单元技术和仪器仪表电路,尽可能降低与硅霍尔单元特性相关的温度漂移。该架构可充分发挥单芯片方案的优势,同时提供足够的功能,以较少的器件满足不同应用需求。
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可变磁阻(VR)传感器能够承受机械振动和高达300°C的高温操作,因此更适用于工业和汽车环境。在大多数应用中,主要针对旋转总成中的某个金属部分执行检测。由于未经处理的信号幅度与目标速度成比例,信号处理电路设计用于实现高速的传感器会在转速降低时停止该功能。VR传感器(例如MAX9924/MAX9927)具有线圈,可以检测电机的速度和转速。与其他解决方案相比,集成式VR传感器接口解决方案具有多种优势,包括更强的抗干扰性能和准确的相位信息。

如果我们有能力实现无电源解决方案会怎样呢?

如果我们有能力实现无电源解决方案会怎样呢?这并不矛盾,但也可能是“魔法”。ADI MagIC+正在模糊我们以前认为磁场传感器领域可能达到的界限。

Visit the ADMT4000 product page to download the datasheet, explore the supporting design resources and order an evaluation kit.

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ADI MagIC+多圈传感器

ADI MagIC+产品组合提供独特的真正通电多圈技术,可以在无需电源或接触的情况下跟踪磁铁的旋转。对于需要在缺乏电源的情况下测量电机旋转的应用来说,该产品免去了备用电池、线性传感器或装置的必要。系统优势包括无需归零和校准,从而可以减少工厂停机时间和降低成本,或者通过单芯片解决方案提供强大的安全功能。
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ADI MagIC+多圈传感器

ADI MagIC+产品组合提供独特的真正通电多圈技术,可以在无需电源或接触的情况下跟踪磁铁的旋转。对于需要在缺乏电源的情况下测量电机旋转的应用来说,该产品免去了备用电池、线性传感器或装置的必要。系统优势包括无需归零和校准,从而可以减少工厂停机时间和降低成本,或者通过单芯片解决方案提供强大的安全功能。