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Sensors and Sensing Systems

(The University of Chicago - Alvin Wei-Cheng Wong)



- Emerging Types of Sensors and Actuators, and Emerging Applications


  • Emerging types of sensors: touch, pressure, thermal, radiation, humidity, chemical, high- performance image and IR, air and pollution, magnetic, water, radar, high performance inertial, high performance microphones, microphone arrays.
  • Emerging types of actuators: high performance micro speakers, optical zoom, micro shutters, energy harvesters.
  • Emerging applications: digital health, body area networks, medical diagnostics and screening, genomics, safety and security, environmental, virtual reality, indoor navigation, quantified self, usage paid insurance.


- Wireless Sensor Networks


  • [Wikipedia]:  A wireless sensor network (WSN) of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. and to cooperatively pass their data through the network to a main location. The more modern networks are bi-directional, also enabling control of sensor activity. The development of wireless sensor networks was motivated by military applications such as battlefield surveillance; today such networks are used in many industrial and consumer applications, such as industrial process monitoring and control, machine health monitoring, and so on.
  • [IEEE]: Smart Grid requires lots of applications in the terminals to sense the environment or control the intelligent devices. Due to the low cost and high function, wireless sensors have been deployed in power grid wildly. Depending on wireless sensor network (WSN), the grid can build a two-way communication system, and then customers can interact extensively with the network, both in providing power consumption data and even feeding back domestically produced energy into the grid.....
  • [Stanford Wireless Systems Lab]: Wireless sensor networks can also enable a new class of intelligent home electronics, smart and energy-efficient buildings and highways, and in-body networks for analysis and treatment of medical conditions.



[More to come ...]




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