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US7127948B2 Piezoelectric sensor, sensor array, and ...

A sensor, sensory array, and associated method for measuring a pressure are provided. The sensor includes a piezoelectric sensory device that is disposed on an electrically insulative substrate that can be adhered to a member for measuring the pressure on the member. The piezoelectric sensory device defines first and second contact surfaces and is adapted to provide an electric potential ...


Gas monitoring for tunnels and underground GazDetect

A confined space is a closed or partially closed structure and most of severe or lethal accidents that occur while entering these areas are linked to combustible gas, toxic or asphyxiating (lack of oxygen) will be the main risks to evaluate within a gas monitoring safety process for tunnels and underground work using portable gas detectors and area gas monitors.


Road Tunnel Ventilation Control System

Typical items of sensor data analysis Tunnel characteristics (traffic method, ventilation method, tunnel length, cross section) Traffic data (inbound and outbound, vehicle type, traffic volume in each type/min, 24hours x more than 1 week) Jetfan operation (min, 24hours x 1week) CO, VI, AV data (min, 24hours x 1week) Illustration of traffic measurement A new ventilation control for road ...


Carbon Monoxide Sensor CrossSensitivities Alcohols, VOCs ...

Carbon Monoxide Sensor CrossSensitivities Alcohols, VOCs Hydrogen Technical Bulletin Crosssensitivity to gases other than the target gas of interest is a common sensor characteristic, especially among electrochemical sensors. Crosssensitivities are limited as much as possible by MSA sensor design and filters; however, some key interactions still occur. CO sensors do have some inherent ...



BionicSoftHand Pneumatic robot hand with artificial ...

2 Festo AG Co. KG. 02: Machine vision: computer vision to collect the necessary data for a virtual image 05: Massively parallel learning: fast learning through the duplication of the digital twin Reinforcement learning: the principle of reward The learning methods of machines are comparable to those of humans – be it positive or negative, they both need feedback on their actions in ...


Eisenhower Tunnel Wikipedia

The Eisenhower Tunnel, officially the Eisenhower–Edwin C. Johnson Memorial Tunnel, is a dualbore, fourlane vehicular tunnel in the western United States, approximately 60 miles (97 km) west of Denver, tunnel carries Interstate 70 (I70) under the Continental Divide in the Rocky a maximum elevation of 11,158 feet (3,401 m) above sea level, it is one of the ...


Carbon Monoxide Detection Simplex Home

The CO sensor base has a removable CO element that can either work independently as a toxic gas detector or be combined with a photo or heat senor to provide a method to reduce unnecessary alarms from common sources such as steam from showers, aerosols from personal care products, cooking materials, dust and exhaust fumes. The CO sensor base does not require a separate device be …


Wind tunnel Wikipedia

The wind tunnel moves air around an object, making it seem as if the object is flying. Most of the time, large powerful fans blow air through the tube. The object being tested is held securely inside the tunnel so that it remains stationary. The object can be an aerodynamic test object such as a cylinder or an airfoil, an individual component, a small model of the vehicle, or a fullsized ...


ModelBased Predictive Detector of a Fire inside the Road ...

These sensors can be also used for fire detection; they are usually installed on the wall of the tunnel. Smoke sensors must be installed at the maximum distance of 150 meters along tunnel. The measure range of these smoke sensors is 0–15 km and accuracy is 0, 2 km; they are usually installed on the tunnel ceiling. Typical values in measuring opacity: (1) Normal traffic <5 km (2) Heavy ...


Parking Garage Carbon Monoxide Detector System

CO sensors are: Certified by the manufacturer to be accurate within plus or minus 5% of measurement. Factory calibrated. Certified by the manufacturer to drift no more than 5% per year. Certified by the manufacturer to require calibration no more frequently than once a year. Selfcheck for sensor failure. Upon detection of a failure, the system shall engage the fans and signal sensor failure ...


Tunnel Sensors Ltd road tunnel atmosphere monitoring

Acoem Tunnel Sensors is a global leader in the design and manufacture of speciality sensors for tunnel atmosphere monitoring. We design and manufacture our own analysers specifically for pollution monitoring in the traffic tunnel environment. We …


Engineering Consulting Services | DMT GROUP

20210716· The group headquarters (DMT Co. KG) are situated in Essen, Germany. We lead the TÜV NORD GROUP’s engineering division, have numerous officially recognised expert bodies and accredited test laboratories, and employ more than 100 recognised experts in this area alone. We are involved in more than 40 funded innovation projects, many at international level, and work on …


Conductance anomalies of CoFeB/MgO/CoFeB magnetic tunnel ...

20141103· The I − V characteristics of CoFeB/MgO/CoFeB magnetic tunnel junctions show pronounced nonlinearities which are relevant both for sensor applications and for the basic understanding of spindependent tunneling. To study the relation between the tunnel characteristics and the tunnel magnetoresistance (TMR) ratio, a series of CoFeB/MgO/CoFeB junctions was annealed …