Abstract:
Systems for locating buried utilities in conjunction with associated electromagnetic marker devices are disclosed. A marker device may include a marker device antenna and an electronic circuit operatively coupled to the marker device antenna. The electronic circuit may include at least two resonant circuits, including a first resonant circuit formed in combination with the marker device antenna for receiving an excitation signal at a first frequency from a marker excitation device. The received excitation signal may be converted into a power supply by a power circuit for powering the electronic circuit. Responsive to the received excitation signal, a processing element provided in the electronic circuit may generate an output signal at a second frequency, which is different from the first frequency. The generated output signal may be tuned by a second resonant circuit and provided to the marker device antenna.
Abstract:
본 발명은 법정선량계를 스마트 선량계에 부착 및 결합 시킬 수 있는 구조로 마치 하나의 구성인 것과 같이 사용하고, 스마트 선량계 내 센서로 법정선량계의 착용여부를 감지하고, 실시간으로 순간 피폭 수치를 확인할 수 있도록 하여 보다 안전한 작업을 할 수 있도록 도움을 주기 위한 법정선량계를 결합하는 스마트 선량계를 제공하기 위한 것으로서, 움직임을 감지하는 움직임 감지부와, 스마트 선량계에 구성된 결합부에 법정선량계가 결합되어 고정되어 있는지의 여부를 확인하는 법정선량계 감지부와, 상기 움직임 감지부에서 감지된 움직임 정보 및 상기 법정선량계 감지부에서 확인된 결합 고정 정보를 기반으로 방사선 작업종사자가 법정선량계를 착용하고 있는지의 여부를 확인하는 착용 확인부와, 작업종사자의 실시간 피폭선량을 측정하여 검출하는 G-M 검출부와, 상기 G-M 검출부에서 검출된 피폭선량을 관리서버로 전송하고, 상기 관리서버로부터 경고 상황 정보를 수신하는 데이터 통 신부를 포함하여 구성되는데 있다.
Abstract:
Methods and systems are presented in this disclosure for determining information (e.g., visual information) about locations of different fluids flowing along a casing in a wellbore. A plurality of radio frequency (RF) micro-electro-mechanical system (MEMS) tags is placed in a plurality of fluids flowing through an annulus region between a casing string in the wellbore and a reservoir formation. At a plurality of sensing nodes located along the casing string, information about the fluids is gathered by communicating with the RF MEMS tags placed in the fluids. The information about fluid locations along the casing gathered by the sensing nodes is communicated to a receiving device, and appropriate operation in relation to the wellbore is performed based on the communicated information.
Abstract:
An object identification system (400) includes a guided surface waveguide probe (P) that produces a guided surface wave; and an object identification tag (402) having a receive structure (R, 412) and a tag circuit (44), the tag circuit coupled to the receive structure and electrically powered as a load on the probe by conversion of the guided surface wave to electrical current at the receive structure, the tag circuit configured to emit a return signal containing a tag identifier when electrically powered by presence of the guided surface wave.
Abstract:
A method for manufacturing an RFID tag for use with apparels, garments, laundry-related products, soft synthetic resin material products, leather products or the like is disclosed. The method includes manufacturing the RFID tag comprising an encapsulated core which can withstand high pressure. The disclosed method further comprises inserting a booster antenna across the encapsulated core to minimize poor readability. Further, the disclosed method minimizes the use of copper material in the manufacturing of the RFID tag. Further, the disclosed method produces the RFID tag which can be stitched to apparels, garments, and other products to provide seamless tagging and sustain one or more environmental conditions such as a dry clean condition, a compression dry condition, a high temperature condition, and the like.
Abstract:
The invention is a tracer method for online monitoring of downhole zonal contributions of oil, condensate, gas, or water mass flux (Foz, Fez, Fwz, Fgz) of a production flow (2) in a petroleum production well (1), comprising arranging distinct tracer carrier systems (Trsl, Trs2,..), each in different production zones (Zl, Z2,...) in said well, said distinct tracer carrier systems arranged for releasing unique tracers (Trl, Tr2,..) to a fluid of said production zones, said tracers having affinity after downhole release to separate phases of oil, condensate, gas, or water, using an online tracer monitor (5), conducting sampling of tracer concentrations (cl, c2,...) for at least one of the tracers in said zonal mass fluxes at a high sampling rate, based on said concentration values, estimating the corresponding zonal tracer fluxes for each delivery data point and using said one or more estimated zonal mass fluxes to control one or more Petro Technical processes.
Abstract:
One aspect of the invention relates to a method of detecting a spatial orientation of a transducer by a handheld optical scanning device. The method comprises steps of providing a first spatial orientation feature on at least a first outer housing surface of the transducer and arranging a handheld optical scanning device in a sightline of the first spatial orientation feature at a selected spatial orientation relative to the first outer surface of the transducer housing. The method comprises further steps of identifying the first spatial orientation feature, detecting a spatial orientation of the handheld scanning device in a predetermined coordinate reference system and determining a spatial orientation of the transducer in the predetermined coordinate reference system.
Abstract:
Systems and methods for authenticating material samples are provided. Characteristic features are measured for a batch of material samples that comprise substantially the same composition and are produced by substantially the same process. The measured characteristic features have respective variability that is analyzed to extract statistical parameters. In some cases, reference ranges are determined based on the extracted statistical parameters for the batch of material samples. The corresponding statistical parameters of a test material sample are compared to the reference ranges to verify whether the test material sample is authentic.
Abstract:
A method for observing a subterranean reservoir penetrated by a production well and two or more injection wells. A first set of magnetic tracer particles is delivered to the reservoir by one injection well, while a second set of magnetic tracer particles is delivered to the reservoir via a second injection well. The first set of tracer particles includes a first identification element while the second set of tracer particles includes a second identification element. The presence or absence of particles from the first set or second set of tracer particles in fluid produced from the production well is determined by X-ray fluorescence spectroscopy or another analogous technique using the identification elements in the production fluid. The tracer particles are concentrated in the production fluid by magnetic extraction. The fluid flow (or absence thereof) from a particular injection well to the production well can thus be determined.
Abstract:
A tracking tag for aquatic animals may detect the occurrence of a predation event. The tag may include a pH sensitive material that degrades in the environment of an animal's gut. The degradation of the pH sensitive material causes a change in a detectable characteristic of the tag, which allows the tag to detect the predation event and adjust its operation accordingly.