Natural gas transmission and distribution companies continually seek to improve the safety of their maintenance and repair operations. For example, before pipeline repair, construction, or service can begin in the field, technicians need to know the approximate pressure in the pipeline. Battelle developed a non-intrusive pressure sensor that records changes...
Stress meter developed for monitoring rock stresses in underground mines. Modeling changing contact conditions can be cumbersome in finite element systems which rely solely on the relatively old-fashioned "friction/gap" type of elements. This is not so in LUSAS, where state-of-the-art "slide line" facilities made the modeling of the two contact...
BioVigilant has developed an optical technology that can determine the quantity and size of particles in liquid or air, and simultaneously determine whether each particle is inert or biologic, all in real time. The result is that BioVigilant's devices provide instantaneous microbial detection, thereby creating wide-ranging benefits for pharmaceutical manufacturers....
The asset monitoring from IBM is transforming the way business gets done. It uses sensors, such as pressure gauges, flow meters, and even Radio Frequency Identification RFID tags, to communicate with companies' information systems and other machines, and provide potentially valuable data, all in real time. Consequently, an asset monitoring...
This paper provides an overview of initial research conducted in the development of pressure-sensitive foam and its application in wearable sensing. The foam sensor is composed of polypyrrole-coated polyurethane foam, which exhibits a piezo-resistive reaction when exposed to electrical current. The use of this polymer-coated foam is attractive for wearable...
The paper introduces a multi-tier telemedicine system and describes how to optimize the prototype WBAN implementation for computer-assisted physical rehabilitation applications and ambulatory monitoring. The system performs real-time analysis of sensors' data, provides guidance and feedback to the user, and can generate warnings based on the user's state, level of...
Technological advancement has always been a vehicle for musical innovation. New materials, new inventions, and new archetypes lead to new ideas for musical and artistic expression. This paper focuses specifically upon the selection of sensors for alternative interfaces. The sensor is the point of contact between the interface and the...
Optical fiber sensing is one of today's fastest developing technologies. The significant advantages that optical fiber sensors hold over more conventional sensors for component testing, design validation and structural health monitoring have long been understood. However, it is only within recent years that this unique technology has sufficiently matured to...
A two-electrode chemical cell, with a proton-conducting polymer as electrolyte, is used to detect the CO concentration in a H2-rich gas. The anode is exposed to the gas flow, while the cathode is immersed in water to retain the polymer conductivity. The disturbance of the H2-oxidation current is a measure...
The present paper describes the different components of the instrument (antenna network, receiver and data processing system) and presents an evaluation of its performances. According to mission parameters, space based lightning sensors enable detailed analysis of meso-scale and large scale convective systems (e.g. inter-tropical convergence zone, monsoon regions, tropical cyclones)...
APOD is a suite of complex and powerful signal processing algorithms that carefully analyze the incoming signal to determine if the pulse oximeter sensor is on or off the patient. Adaptive Probe Off Detection APOD delivers enhanced protection against erroneous pulse rate and arterial oxygen saturation readings when a sensor...
This paper describes the procedure for determining the size of a defect using tri-axial sensors, and illustrates the benefits of magnetic modelling of these defects. These benefits include a better understanding of what the defect signals are dependent upon and superior sizing accuracy. In-line Magnetic Flux Leakage inspection tools are...
This paper explores expansion of a wireless sensing unit design to accommodate active sensors which are sensors capable of simultaneous excitation and sensing. Active sensors could improve the reliability of current damage detection procedures. In this study, the design of a novel self-contained wireless active sensing unit is put forth....
Pulse oximetry provides a critical parameter in the diagnosis and treatment of sleep apnea. This group of researchers has studied Masimo SET pulse oximetry in the past and found it to have better fidelity for Sleep-Disordered Breathing testing as compared to Nellcor pulse oximetry. In this study, these researchers wanted...
In this paper a brief review of currently used pyroelectric materials is presented. The design and construction of a sensor for measurements of impulse radiation energy have been described. The main element of the sensor is a polymer PVDF detector of relatively large area of a very low price when...
This report covers the creation of a system for monitoring vehicles in highway on-ramp queues. The initial phase of the project attempted to use a blob tracking algorithm to perform the ramp monitoring. The current system uses optical flow information to create virtual features based on trends in the optical...
This article emphasizes the importance of sensor technology in the automotive sector. Sensors are used to determine early on whether a vehicle satisfies all the functional requirements, and to enable any necessary adaptations or improvements to be carried out. Acting as the "eyes and ears of the modern, high-tech world",...
This article discusses inertial sensors for motion measurement in safety systems applications. Today, nearly all accelerometers used in automotive applications are silicon micro-machined and use a capacitive measurement principle. Silicon, particularly single crystal silicon, is one of the best elastic materials with no plastic deformation at normal operating temperatures. It...
This white paper highlights findings of a study completed by Venture Development Corporation VDC in March 2003. The detailed study findings are contained in three volumes, one each for Electronic Process Pressure Transmitters, Electronic Non-Process Pressure Transducers & Transmitters and Electronic Component Level Pressure Sensors. These three volumes focus exclusively...
This paper looks at the remote sensing from satellites and how it can be used to detect oil on the oceans. The sensors used are divided into two main categories, passive and active. A radiometer is a passive instrument, thus it uses radiation from an external source. Radar is an...
