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...
Active sensorshave their own source of light or illumination. In particular, it actively sends a pulse and measures the backscatter reflected to the sensor. Butpassive sensorsmeasure reflected sunlight emitted from the sun. When the sun shines, passive sensors measure this energy. More on this lat...
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: ...
been effective for many years, they have several drawbacks. A common problem with these and any type of permanent magnet sensor is limited operation at low speeds. In the case of wheel speed, a passive sensor is only able to generate a signal at approximately four miles per hour and higher...
Plant stress has been estimated by spectral signature using both passive and active sensors. As optical sensors measure reflected light from a target, changes in illumination characteristics critically affect sensor response. Active sensors are of benefit in minimizing uncontrolled illumination effects on ...
Multiple data fusion methods including simple linear regression and principle driven fusion approach were included. The sensitivity of these datasets to alfalfa harvesting events was also evaluated. This study, using both active and passive remote sensing data to detect the frequent harvesting of alfalfa...
Retrieval of soil moisture from passive and active L/S band sensor (PALS) observations during the Soil Moisture Experiment in 2002 (SMEX02) The PALS microwave sensitivity to soil moisture under these vegetation conditions was investigated for both passive and active measurements. The performance of ...
1) active sensor 主动式遥感器2) active remote sensing 主动式遥感3) active remote sensing 主动遥感4) passive remote sensing 被动式遥感 例句>> 5) Active and passive remote sensing 主被动遥感组合6) active remote-sensing system 主动遥感系统...
The detectors featured 14-bit image acquisition, 50 µm detector element (del) size and an active area of 5 cm × 5 cm. One detector was a passive-pixel sensor (PPS) with signal amplification performed by an array of amplifiers connected to dels via data lines. The other detector was ...
- Radar Sensor Technology VIII & Passive Millimeter-wave Imaging Technology VII 被引量: 68发表: 2004年 183GHz 13.5mW/pixel CMOS regenerative receiver for mm-wave imaging applications This area constraint is critical because the cost-effective pixel array should ideally fit on a wafer to facilitate...