公开(公告)号：US20140260523A1

公开(公告)日：2014-09-18

申请号：US13827464

申请日：2013-03-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Andy Peczalski ,  Raj Mohan Bharadwaj ,  Hai Pham ,  David Wunderlin ,  Kyusung Kim ,  Dinkar Mylaraswamy

IPC: G01H3/00

CPC classification number: G01H3/005

Abstract: A method of calibrating a radar-based vibration sensor that includes a radar head coupled to a vibration device includes disposing the vibration sensor at a fixed distance from a target, and transmitting radio frequency (RF) signals toward, and receiving RF signals reflected by, the target. An excitation voltage is supplied, at a plurality of different excitation frequencies, to the vibration device to cause the vibration sensor to vibrate. Vibration sensor acceleration is determined at each of the different excitation frequencies. A calibration curve is generated based on the determined vibration sensor acceleration at each of the different excitation frequencies, and on the reflected RF signals at each of the different excitation frequencies.

Abstract translation: 一种校准基于雷达的振动传感器的方法，其包括耦合到振动装置的雷达头，包括：将振动传感器设置在与目标相距一定距离处，并且将射频（RF）信号传输到射频信号， 目标。 以多个不同的激励频率向振动装置提供激励电压，以使振动传感器振动。 在每个不同的激励频率下确定振动传感器的加速度。 基于在每个不同激发频率下确定的振动传感器加速度以及每个不同激励频率处的反射RF信号产生校准曲线。