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Laser Sensors Market Size To Witness A Lucrative Growth Over 2021-2027 | Schmitt Industries Inc , MTI Instruments Inc , Omron Corp – KSU
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Ultrasonic Sensor Market to Reach $10 43 Bn, Globally, By 2028 at 11 1% CAGR: Allied Market Research
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Ultrasonic Sensor Market revenue to cross USD 5 Bn by 2027: Global Market Insights Inc
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Detecting Target Echoes from Uneven Surfaces with Ultrasonic Sensors
Ultrasonic sensors are the preferred choice for a broad range of non-contact distance measuring applications. They are often regarded as the most economical devices for applications like liquid level measurement in tanks.
Ultrasonic sensors are engineered specifically for installation into an NPT threaded hole at the top portion of a tank. These sensors usually lack the ability to detect targets located closer than 4 inches within the face of the transducer.
Several applications present headroom constraints, for example, a drainage tube, where it is preferred to mount a sensor with a thin, small housing that can fit onto the top inner side surface of a container or pipe and quantify the distance to the material inside when it is quite closer than 4 inches within the transducer’s face.
Abstract
In this paper, portable transceivers with micro-controllers and radio frequency modules are developed to measure the received signal strength, path loss, and thus the distance between the human ankles for both indoor and outdoor environments. By comparing the experimental results and the theoretical model, a path loss model between transceivers attached to the subject’s ankles is derived. With the developed experimental path loss model, the step length can be measured relatively accurately, despite the imperfections of hardware devices, with the distance errors of a centimeter level. This paper, therefore, helps address the need for a distance measurement method that has fewer health concerns, is accurate, and is less affected by occlusions and confined spaces. Our findings possibly lay a foundation for some important applications, such as the measurement of gait speed and localization of the human body parts, in wireless body area networks.