slide1
Download
Skip this Video
Download Presentation
ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: Tunneling Infrared Sensor

Loading in 2 Seconds...

play fullscreen
1 / 21

ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: Tunneling Infrared Sensor - PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on

ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: Tunneling Infrared Sensor. Prepared by: Curtis Dance Dept. of Electrical and Computer Engineering Utah State University E: ; T: ( 435)797-; F: (435)797-3054 (ECE Dept.) W: http://. 3/10/2006. Outline .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: Tunneling Infrared Sensor' - finley


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

ECE5320 MechatronicsAssignment#01: Literature Survey on Sensors and Actuators Topic: Tunneling Infrared Sensor

Prepared by: Curtis Dance

Dept. of Electrical and Computer Engineering

Utah State University

E: ; T: (435)797-; F: (435)797-3054 (ECE Dept.)

W: http://

3/10/2006

outline
Outline
  • Reference list
  • To probe further
  • Major applications
  • Basic working principle illustrated
  • A typical sample configuration in application (application notes)
  • Block Diagram of Tunneling IR Sensor
  • Major specifications
  • Limitations
  • Applied Design
  • Suppliers

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

reference list
Reference list
  • http://design.stanford.edu/SMSSL/TunnelingSensors/THD/THDsensorDev.html
  • http://directory.eoportal.org/pres_SAPPHIRE.html
  • http://www.mda.mil/mdalink/pdf/bunc.pdf

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

to explore further history and facts
To explore further History and Facts
  • “The Tunneling Infrared Sensor (TIS) was designed by Stanford professor Tom Kenny and colleagues of his at the Center for Space Microelectronics Technology at the Jet Propulsion Laboratory (JPL).”
  • “The driving technological motivation for the sensor development was to create miniature sensors with high performance.”
  • “Electron tunneling is a quantum mechanical phenomena originally developed for use in microscopy.”

http://design.stanford.edu/SMSSL/TunnelingSensors/THD/THDsensorDev.html

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

to explore further cont
To explore further(cont.)

“Electron tunneling occurs when electrons cross a narrow energy barrier. For this sensor, this barrier is caused by maintaining two metallic electrodes a small distance apart. The membrane and tip are held roughly 10 Angstroms apart when the sensor is operating properly.”

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

slide6
“This system balances the forces on the membrane to keep the current (and therefore separation distance) constant, so the external forces on the membrane can be measured by measuring the force the controller applies to balance these external forces. So to measure different phenomena, we need to make these phenomena apply forces on the membrane.”

http://design.stanford.edu/SMSSL/TunnelingSensors/Overview/TunnelingSummary.html

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

major applications
Major Applications
  • Space Based Measurements of Infrared Radiation from Planetary Surfaces
  • Earth Horizon Detection for Spacecraft
  • Ballistic Missile Defense
  • Biological Thermographic Applications

-Thermometers

-Spectrometers

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

major applications cont
Major Applications(cont.)
  • “IR sensors can be used in a variety of applications where temperature sensing and limited chemical analysis are required.

-Anesthetic Gas Analyzers

-Noninvasive Blood Analysis

-Tumor Detection”

http://www.mda.mil/mdalink/pdf/bunc.pdf

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

basic working principle illustrated
Basic Working Principle Illustrated

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

typical sample configuration in application
Typical Sample Configuration in Application

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

block diagram of tunneling ir sensor
Block Diagram of Tunneling IR Sensor

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

photographs
Photographs

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

photographs cont
Photographs(cont.)

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

photographs cont1
Photographs(cont.)

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

major specifications
Major Specifications

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

major specifications cont
Major Specifications(cont.)
  • Biasing voltage of roughly 150 mV applied to the membrane and the tip.
  • 1.5 nA current
  • V- of Op-Amp must match V+

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

limitations
Limitations
  • High Cost
  • Variations in control voltage over time
  • Susceptible to Ambient Temperature Fluctuations
  • Low Frequency Noise

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

advantages
Advantages
  • Higher resistance to radiation
  • Better performance
  • Wider temperature range
  • Potential for fabrication of arrays
  • Can be miniaturized without loss in performance

http://design.stanford.edu/SMSSL/TunnelingSensors/IR/IRApplication.html

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

applied designs
Applied Designs

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

applied designs cont
Applied Designs(cont.)

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

suppliers
Suppliers
  • Jameco
  • Digikey Coperation
  • Jet Propulsion Laboratory

ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuators

ad