Sensor and Time
Flex Sensor
The Flex Sensor is a unique component that changes resistance when bent. An unflexed sensor has a nominal resistance of 10,000 ohms (10 K). As the flex sensor is bent the resistance gradually increases. When the sensor is bent at 90 degrees its resistance will range between 30-40 K ohms. The flex sensor may be bent greater that 360 degrees depending upon the radius of the curve. Operating temperature is -45F to 125F. The sensor measures 1/4 inch wide, 4-1/2 inches long and 0.19 inches thick.
Schematics for Flex Sensor
Reusable FlexSensors
SpO2 Reusable FlexSensors---medical purp
Nonin’s Flex Sensor System combines the convenience and performance of a disposable sensor with the economics of a reusable sensor.
SpO2 Disposable Sensors
Nonin’s Value Line and Flexi-Form® II sensors are ideal for extended monitoring or situations where the risk of cross-contamination is high.
Reusable flex sensor-- wearable,
Proven high-intensity LEDs for accuracy at critical SpO2levels
Comfortable options for spot checking, short-term and extended monitoring
Full range of sizes for all patients
Options for environments such as MRI and veterinary
Interface to a Flex sensor
http://www.tufts.edu/programs/mma/emid/projectreportsS04/kriete.html --sensor gloves
http://itp.nyu.edu/~dc788/fall2002/physcomp/keyboard_midterm.html
Keyborad Glove by Dennis Crowley
http://www.irvine-sensors.com/pdf/desnews_art_699.pdf
The EMG sensor was first protoyped in a hard printed circuit board configuration (left). A
custom ASIC on a flexible substrate is used to refine the sensor architecture (center), before
a fully flexible, silicon circuit sensor is developed.
High-flex Sensor Heads
http://www.keyence.com/products/sensors/fiberoptic/fu/fu_features_6.php
Some applications for the Flex Sensor are:
.Collision detection on mobile robots
.VR Gloves and VR suits
.Physics applications and experiments
.Bio-Metrics
Flex/Bend sensor responds to a physical range between straight and a 90 degree bend. This sensor uses the same technology as many of the glove controllers used for video consoles or computer games. It outputs a conditioned signal in the industry standard voltage range of 0.25-4.75 Volts.
http://itp.nyu.edu/physcomp/sensors/Reports/Flex by Rebecca Bray, Spring 2006
She is very organized about Flex Sensor..Take a look at what she has done.....
Flex Sensor Reaction Curve
Flex Sensor's reaction curve: Maximum bend count is 137, and minimum bend count is 35. (average)
Miltivariable Viewer Fancy
Serial Message in Arduino (simple data viewer and multi data viewer)