公开(公告)号：US20160131607A1

公开(公告)日：2016-05-12

申请号：US14856027

申请日：2015-09-16

Applicant: Fluke Corporation

Inventor： Luis R. Silva ,  Michael D. Stuart

IPC: G01N27/04 ,  G01N21/3563

CPC classification number: G01N27/046 ,  G01N21/3563 ,  G01R27/025 ,  G01R31/346

Abstract: Systems can include a resistance testing device configured to generate resistance data regarding the insulation resistance of equipment under test and a temperature sensing device configured to generate temperature data regarding the temperature of the equipment under test. The system can include a processor configured to receive the resistance data and the temperature data. Based on the received data, the processor can determine normalized resistance data accounting for temperature effects on the measured resistance. Normalized resistance data can indicate a predicted value for the insulation resistance measurement had the measurement been performed at a reference temperature. Thus, insulation resistance values normalized to a common temperature can be more accurately and meaningfully analyzed and trended over time.

Abstract translation: 系统可以包括电阻测试装置，其被配置为产生关于被测设备的绝缘电阻的电阻数据;以及温度感测装置，被配置为产生关于被测设备的温度的温度数据。 该系统可以包括配置成接收电阻数据和温度数据的处理器。 基于所接收的数据，处理器可以确定归一化的电阻数据，以计算测量电阻的温度影响。 归一化电阻数据可以指示在参考温度下进行测量时的绝缘电阻测量的预测值。 因此，归一化到常温的绝缘电阻值可以随时间更准确和有意义地分析和趋势。

公开(公告)号：US11821925B2

公开(公告)日：2023-11-21

申请号：US17521703

申请日：2021-11-08

Applicant: Fluke Corporation

Inventor： Brian D. Painting ,  Luis R. Silva ,  Ginger M. Woo ,  Ronald Steuer

IPC: G01R19/00 ,  H01R11/24 ,  H01R13/447 ,  H01R13/66 ,  H01R13/70

CPC classification number: G01R19/0084 ,  H01R11/24 ,  H01R13/447 ,  H01R13/6683 ,  H01R13/6691 ,  H01R13/70 ,  H01R2201/20

Abstract: Accessories are removably received by a non-contact electrical detector for measuring an electrical characteristic without galvanic contact between the accessory and a non-contact sensor in the non-contact electrical detector. In some embodiments, an accessory is positioned in a gap between first and second extensions of the non-contact electrical detector. In some embodiments, an accessory includes first and second recesses on opposite sides of the accessory. First and second clamp arms of a non-contact electrical detector are inserted within the first and second recesses to removably hold the accessory. An external conductive prong of the accessory is electrically coupled, or is selectively electrically coupleable, with an internal conductive prong of the accessory. The external conductive prong is configured to be inserted into a receptacle of an electrical outlet. In use, the accessory positions the internal conductive prong within a sensing area of the non-contact electrical sensor of the non-contact electrical detector.

公开(公告)号：US10585203B2

公开(公告)日：2020-03-10

申请号：US15141169

申请日：2016-04-28

Applicant: Fluke Corporation

Inventor： Jamie Rhead ,  Paul H. Heydron ,  Christopher D. Corrigan ,  Luis R. Silva ,  Matthew D. Rabdau

IPC: G01V3/08 ,  G01N27/00 ,  G03B21/26 ,  H04N9/31

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an optical sensor, a processor, and an output. The position sensor determines a position of the RF imaging device relative to a surface. The optical sensor captures optical image data representing an optical image of an area of the surface. The optical image data is associated with position data representing a position relative to the surface derived from the determined position of the RF imaging device. The derived position data corresponds to the area of the surface imaged by the optical sensor. The processor produces a composite image in which one or more portions of the optical image data are simultaneously viewable with RF image data representing an RF image of a space behind the surface at the same position as the optical image data. The output displays the composite image. The output may be a projector.

公开(公告)号：US10564116B2

公开(公告)日：2020-02-18

申请号：US15141102

申请日：2016-04-28

Applicant: Fluke Corporation

Inventor： Jamie Rhead ,  Paul H. Heydron ,  Christopher D. Corrigan ,  Brian Knight ,  Nikola Mrvaljevic ,  Luis R. Silva ,  Matthew F. Schmidt

IPC: G01N27/02 ,  G01B7/14 ,  G01V3/08

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an RF sensor assembly, an optical sensor, a processor, and a memory. The position sensor determines a position of the RF imaging device relative to a surface. The RF sensor assembly captures RF image data representing an RF image of a portion of a space behind the surface at the determined position. The optical sensor captures optical image data representing an optical image of the surface at the determined position. The processor produces a composite image in which at least one or more portions of the RF image and one or more portions of the optical image that correspond to the same position relative to the surface are simultaneously viewable. The RF image data and the optical image data are stored in the memory in association with position data derived from the determined position of the RF imaging device.

公开(公告)号：US10120021B1

公开(公告)日：2018-11-06

申请号：US15625812

申请日：2017-06-16

Applicant: Fluke Corporation

Inventor： Luis R. Silva ,  Michael D. Stuart

IPC: G01R31/302 ,  G01R31/308 ,  G01R15/24 ,  G01R15/18 ,  G01R15/20

Abstract: Systems and methods detect abnormal conditions in electrical circuits by providing thermal imaging combined with non-contact measurements of current and voltage. Such systems may be implemented in a single test device, or in wired combinations, or in wireless communication implementations with multiple test devices and/or accessories, or in combination with one or more additional devices, such as a mobile phone, tablet, personal computer (PC), cloud-based server, etc. A thermal imaging tool that includes an infrared sensor may first discover and image one or more thermal anomalies in an object, such as an electrical circuit. One or more non-contact current or voltage sensors may be used to measure current and/or voltage, which allows for determination of the power loss at the measured location. The power loss may be used to determine an estimation of the abnormal resistive power losses in a circuit, as well as the costs associated therewith.

公开(公告)号：US20170315252A1

公开(公告)日：2017-11-02

申请号：US15141169

申请日：2016-04-28

Applicant: Fluke Corporation

Inventor： Jamie Rhead ,  Paul H. Heydron ,  Christopher D. Corrigan ,  Luis R. Silva ,  Matthew D. Rabdau

IPC: G01V3/08 ,  G01N27/00 ,  G03B21/26 ,  H04N9/31

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an optical sensor, a processor, and an output. The position sensor determines a position of the RF imaging device relative to a surface. The optical sensor captures optical image data representing an optical image of an area of the surface. The optical image data is associated with position data representing a position relative to the surface derived from the determined position of the RF imaging device. The derived position data corresponds to the area of the surface imaged by the optical sensor. The processor produces a composite image in which one or more portions of the optical image data are simultaneously viewable with RF image data representing an RF image of a space behind the surface at the same position as the optical image data. The output displays the composite image. The output may be a projector.

公开(公告)号：US20170315073A1

公开(公告)日：2017-11-02

申请号：US15141102

申请日：2016-04-28

Applicant: Fluke Corporation

Inventor： Jamie Rhead ,  Paul H. Heydron ,  Christopher D. Corrigan ,  Brian Knight ,  Nikola Mrvaljevic ,  Luis R. Silva ,  Matthew F. Schmidt

IPC: G01N27/02 ,  G01V3/08 ,  G01B7/14

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an RF sensor assembly, an optical sensor, a processor, and a memory. The position sensor determines a position of the RF imaging device relative to a surface. The RF sensor assembly captures RF image data representing an RF image of a portion of a space behind the surface at the determined position. The optical sensor captures optical image data representing an optical image of the surface at the determined position. The processor produces a composite image in which at least one or more portions of the RF image and one or more portions of the optical image that correspond to the same position relative to the surface are simultaneously viewable. The RF image data and the optical image data are stored in the memory in association with position data derived from the determined position of the RF imaging device.