MEV-50A-R 车载陀螺仪

一个创新的基于MEMS技术的汽车导航系统的陀螺仪传感器装置已经宣布村田，提供性能和制造优势，比传统方法。 

Newyes Electronics Co.,ltd

构造一个系统级封装（SiP）中，该微机电系统（MEMS）器件包含一个基于硅片振动的设备和设计的电容式传感器电路集成电路自定义。The two chips are mounted on a ceramic substrate, and then hermetically sealed in a ceramic surface mount package.这两款芯片安装在陶瓷基板，然后密封在一个密封的陶瓷表面贴装封装。

Both devices are manufactured using proven and cost-effective production processes, to provide high reliability and superior performance at a low cost.这两种设备都采用成熟和成本效益的生产过程，提供低成本高可靠性和卓越性能。From the OEM's perspective, Murata's MEV-50A-R gyro sensor is a compact, hermetically sealed, surface mount, ceramic device contained in a fully RoHS compliant package measuring just 10mm x 10mm, with a profile of 3.3mm.从OEM的角度来看，村田的兆电子伏特- 50A条- R的陀螺仪传感器是一种紧凑，密封，表面贴装，陶瓷器件完全符合RoHS标准，尺寸只有10 x 10mm的包中包含的和3.3毫米配置。It is qualified to the –40°C to +85°C temperature range, making it ideal for automotive applications.它有资格为-40 ° C至+85 ° C温度范围，非常适用于汽车应用。

Murata's gyro sensor uses Coliolis force principle of detecting angular velocity, whereby four masses are positioned between two driving beams.村田的陀螺传感器采用检测角速度，即4个群众是两个驱动力量的原则定位Coliolis横梁。By flexing the driving beams, the masses are vibrated along the x-axis.通过伸缩驾驶横梁，人民群众是振动沿x轴。Then, when angular velocity is applied, two detecting masses are vibrated along the y-axis, producing a rotation in the opposite direction to the Coliolis force.然后，当角速度应用，人民群众是两个振动检测沿y轴，产生相反的方向转动的Coliolis力量。

This technique results in lower acceleration noise, when compared to acceleration techniques, as the capacitive variations are cancelled out.加速噪音低，这种技术的结果相比，加速技术，因为电容变化被取消了。Further, the device uses digital signal compensation to deliver low offset drift over the temperature range.此外，该器件采用了数字信号的补偿，以提供优于温度范围低失调漂移。

Features include fast response, low driving voltage and low current consumption.其功能包括快速响应，低驱动电压和低电流消耗。Technical specifications over the –40°C to +85°C operating temperature range include: linearity error of –0.5% to +0.5% FS; output noise of 10mV peak to peak; start up drift of –0.4 to +0.4degrees/s from 1s to 5mins and –0.8 to +0.8degrees/s from 1s to 15min; and frequency response (frequency vs gain) of –4dB to –1dB with gain at 7Hz.技术规格工作在-40 ° C至+85 ° C的工作温度范围包括：线性度0.5％，财政司司长误差-0.5％; 10mV的输出峰值噪音;启动的0.4至0.4度漂移/秒从1秒至5分钟和-0.8至+0.8度/秒，从1秒至15分钟;及频率响应（频率对增益）的同在7Hz增益四分贝到1dB的。

Full technical data and applications guidance is readily available from the Murata website.充分的技术数据和应用程序的指导很容易从村田网站上查阅。It outlines, for example, that a minimum of external circuitry is required along with the 5V power regulator and A/D converter, to integrate the gyro sensor device.它概述例如，外部电路少需要随着5V电源稳压器和A / D转换器，集成了陀螺仪传感器装置。These include noise elimination capacitors on the power supply, a 100kohm load resistor, and a series resistor, depending on the line distance between Vout and the A/D converter.这些措施包括对电源，100k欧姆负载电阻电容消除噪音，并根据与输出电压之间的一条线的距离/ D转换器一个串联电阻。

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