OPTICAL ELEMENT AND MONITORING SYSTEM AND METHOD THEREFOR, ACTIVE LIGHT EMITTING MODULE, AND TERMINAL

    公开(公告)号:EP3848850A1

    公开(公告)日:2021-07-14

    申请号:EP19873016.0

    申请日:2019-10-12

    摘要: The invention provides an optical element, an optical element monitoring system and method, an active light emitting module, and a terminal, and relates to the field of electronic terminal device technologies. The invention can monitor in real time whether an optical element such as a diffractive optical element or a diffuser in the active light emitting module is damaged or falls off, and turn off a laser when the optical element is damaged or falls off, thereby avoiding laser light leakage. The optical element monitoring system includes an optical element (11), and a microprocessor (13), a power supply (2), and a laser (12) that are sequentially connected. A detection line (11-1) is disposed on the optical element (11), and two ends of the detection line (11-1) are connected to the microprocessor (13). The microprocessor (13) is configured to: monitor a resistance value of the detection line (11-1) or a voltage value at the two ends of the detection line (11-1) in real time, determine, based on the monitored resistance value or voltage value, whether the optical element (11) is damaged or falls off, and control, when determining that the optical element (11) is damaged or falls off, the power supply (2) to stop supplying power to the laser (12).

    DISTURBANCE REJECTION FOR CURRENT-MEASUREMENT SYSTEMS
    6.
    发明公开
    DISTURBANCE REJECTION FOR CURRENT-MEASUREMENT SYSTEMS 审中-公开
    干扰抑制用于电流测量系统

    公开(公告)号:EP3039434A4

    公开(公告)日:2017-01-04

    申请号:EP14840010

    申请日:2014-03-26

    申请人: HONEYWELL INT INC

    摘要: Apparatus and associated methods relate to a measurement system that calculates a current in a conductor based on an odd-order spatial derivative function of signals representing magnetic-field strengths within a hole in the conductor. In an illustrative embodiment, the odd-order spatial derivative function may generate an output signal representing a spatial derivative of the in-hole magnetic field greater than the first-order. The three or more magnetic-field sensors may be configured to align on the hole's axis when inserted into the hole. When inserted into the hole, the sensors may be aligned on an axis perpendicular to a direction of current flow and be responsive to a magnetic-field directed perpendicular to both the direction of current flow and the aligned axis. Some embodiments may advantageously provide a precise measurement indicative an electrical current in the electrical conductor while substantially rejecting a stray magnetic field originating from an adjacent electrical conductor.

    INTELLIGENT SPECTRAL INDUCED POLARIZATION MEASUREMENT MODULE
    8.
    发明公开
    INTELLIGENT SPECTRAL INDUCED POLARIZATION MEASUREMENT MODULE 审中-公开
    智能频谱激电测量模块

    公开(公告)号:EP2923226A1

    公开(公告)日:2015-09-30

    申请号:EP13856964.5

    申请日:2013-11-20

    IPC分类号: G01V3/02

    CPC分类号: G01V3/28 G01V3/24

    摘要: A system for spectral induced polarization measurement of a formation is provided. The system provides an intelligent module to be utilized in performing spectral induced polarization (SIP) measurements for geophysical studies or otherwise. The system includes a instrument that includes a housing configured to be inserted into a surface opening. The housing houses a signal generator that generates an excitation signal. A drive electrode directs the excitation signal into the material adjacent the housing. A plurality of electrodes sense the voltage and/or current in the material adjacent the housing and a processor processes the sensed voltage and/or current to measure a property of the material. The system also provides a configuration in which a plurality of instruments configured for spectral induced polarization measurements are interconnected to provide communication, synchronization, a common reference signal or power.

    USER INTERFACES FOR UTILITY LOCATORS
    9.
    发明公开
    USER INTERFACES FOR UTILITY LOCATORS 审中-公开
    BENUTZEROBERFLÄCHENFÜRVERSORGUNGSUNITUNGSSUCHER

    公开(公告)号:EP2893377A1

    公开(公告)日:2015-07-15

    申请号:EP13783415.6

    申请日:2013-09-10

    申请人: SeeScan, Inc.

    发明人: SeeScan, Inc.

    摘要: The present disclosure relates to user interfaces for enhanced utility locators. Such enhanced utility locators may include a variety of sensors and other such technologies for determining information regarding a buried or otherwise inaccessible utility line. Such information may be displayed in various ways to convey relative characteristics among multiple utilities, or to convey relative characteristics of one or more utilities with respect to a locator.

    摘要翻译: 本公开涉及增强型实用定位器的用户界面。 这种增强的实用定位器可以包括各种传感器和其他这样的技术,用于确定关于掩埋或其他不可接近的公用事业线的信息。 可以以各种方式显示这些信息以在多个实用程序之间传达相对特征,或者相对于定位器传达一个或多个实用程序的相对特征。