The system includes an interventional medical device (214) insertable into the region of interest, and a sensor (215) attached to a portion of the interventional device, the sensor being configured to convert an ultrasonic wave from an ultrasound imaging probe (211) to a corresponding electrical...
PASSIVE AND ACTIVE SENSORS FOR ULTRASOUND TRACKING 申请(专利)号: US201716468022 申请日: 2017-12-08 专利号: US2020008775A1 公开公告日: 2020-01-09 主分类号: A61B8/08 申请权利人: KONINKLIJKE PHILIPS N.V. 公开国代码: US 分类号: A61B8/08; A61B5/06; A61B90/98; A61B8 发明设计人: ...
Light detection and Ranging (LiDAR) is an active sensor that measures ground height. Using light from an airplane or helicopter platform measures the time it takes to bounce back to the sensor. From this, you can createDigital Surface Modelswhich are useful in forestry. Active remote sensing ha...
Active wheel-speed sensors require power to operate, whereas passive units do not. There are two types of active wheel-speed sensors: a Hall-effect sensor and a magneto-resistive sensor. A Hall-effect sensor requires either a toothed or magnetic ring to generate a voltage signal, whereas a m...
Active microwave sensor (i.e., RADARs) are characterized by a system design which encompasses the transmission and subsequent reception of EM energy in the form of microwaves through antennas. If a transmitter and receiver are using the same antenna, a radar sensor is referred to as amonostatic...
For instance, Sentinel-1 is a satellite mission with an active radar sensor and has been used to monitor mowing events on grasslands (Tamm et al., 2016). With an ever-increasing volume of remote sensing data and higher spatial, temporal, and spectral resolutions, we hypothesize that it is ...
platform into regions called thermal zones. Sensor devices track the temperature in each thermal zone. When a thermal zone starts to overheat, the operating system can take actions to cool down the devices in the zone. These actions can be categorized as either passive cooling or active cooling...
Distributed hydrological and ecological models on a local scale require information of the spatial distribution of the soil water content. The usefulness o... JOHN,BRIGITTE - 《Int.j.remote Sens》 被引量: 223发表: 1992年 Retrieval of soil moisture from passive and active L/S band sensor (PAL...
spectrum includes bands where active users (i) cannot transmit, (226–231.5 GHz, according to footnotes FCC US2466 and ITU 5.3405); or (ii) need to protect passive radio-astronomy and Earth monitoring users (209–226 GHz and 235–238 GHz, according to FCC US342, ITU 5.149, and 5.563...
mm-Wave Active and Passive Devices Thanks to the technology scaling, the cut-off frequencies of MOS transistors reach an f T of 250 GHz and f MAX of 300 GHz in 40-nm CMOS technology. On top of offering high-speed transistors, the advanced CMOS technology usually provides ... D Zhao,P...