pems presentation-v5
TRANSCRIPT
DESIGNING SMART DEVICES WITHFORCE SENSING TECHNOLOGY
Mark Lowe, MSME, MBA
V.P. of Sensors, Tekscan
MARKET DEMANDS
SMART PRODUCTS
• What’s a smart product?– A product that uses sensors to collect data and
provide feedback
• Examples of smart products using force sensors:– Robotic surgical instruments
– Supply chain tools
– CPR training devices
SMART, CONNECTED PRODUCTS = IOT
AGENDA
• How FlexiForce® sensors enable innovative, smart devices and smart, connected devices (IoT)
• Overcoming challenges of other force feedback technologies
• Examples of Smart Devices and IoT
WHAT ARE FLEXIFORCE SENSORS?
Thin, Flexible, Printed Circuits
WHAT CAN A FLEXIFORCE SENSOR DO?
• Detect and measure a relative change in compressive force or applied load
• Detect and measure the rate of change in compressive force
• Identify compressive force thresholds and trigger appropriate action
• Detect contact and/or touch
EASILY CUSTOMIZABLE
OTHER FORCE MEASUREMENT SOLUTIONS
StrainGauge
Canbecostlyandcomplextointegrateduetosizeandelectronicintegration
LoadCell MEMS
COMPARISON OF FORCEMEASUREMENT TECHNOLOGIES
ImportantSensorElements
StrainGauges
LoadCells MEMS FlexiForce®
Precision
LowCost
EasilyIntegrated:
‒ Electronically
‒ Mechanically
OVERCOMING ELECTRICAL CHALLENGES
• Large dynamic range allows simpler electronics
• High impedance provides a low power solution ideal for battery powered portable devices
OVERCOMING MECHANICAL CHALLENGES
• Easy to integrate– Thin, flexible, lightweight– Custom shapes and sizes
PaperThin
ForceSensing
Flexible
WHAT’S THE VALUE OF A SMART DEVICE?
Elimination of guessworkIncreased consistencyImproved outcomes
+ =
APPLICATIONS
ROBOTIC SURGERY ‒ ENHANCED TACTILE FEEDBACK
• Haptic man-machine interface that provides tactile force feedback to surgeon
• Mimics sensation of force via sensor on surgical gripper
BED MONITORING SYSTEM
• Detects when force is applied to the mattress
• Logs a person’s daily routine
• Notifies a caregiver of a change in routine
ProsthetichanddesignedbyAdvancedPlatformTech.CenteratClevelandVA
PROSTHETICS
• Sensors give patients a sense of touch which allows for better control when picking up objects
• Gives indication of how much force they are exerting in their grasp
• Patients can adjust grip on the fly in order to manipulate grip or handle delicate objects
SMART WALKER
• Helps patients achieve a natural gait
• Helps detect neuromuscular disorders or injuries
• Allows for better diagnosis and treatment plan
ROBOTICS
• Embedded FlexiForce sensors in the NaoRobot’s feet monitor balance
• Sensors ensure the robot properly shifts its weight while moving
Video credit: SoftBank Robotics(formerly Aldebaran)
SUPPLY CHAIN MANAGEMENT
• FlexiForce sensors used to create a real-time wireless inventory reporting system
• Receive notifications or automatically place new orders when inventory is low
INDUSTRIAL CONTROLS
• X-Rite’s MA98 spectrophotometer precisely measures the color of complex special effect finishes
• A custom sensor ensures the device is balanced so it can provide accurate, repeatable positioning
CONCUSSION DETECTION HELMET
• Embedded in helmets, FlexiForce helps to detect shockwaves
OCCLUSION MONITORING –DRUG DELIVERY SYSTEM
• Automated pump systems continuously deliver vital drugs
• Sensor detects life-threatening blockages in system and alerts user
• User can take steps to correct the problem or minimize negative effects
PRODUCTION LINE CONTROL SYSTEM
• Wireless tactile sensors pinpoint errors in the production system, saving time and money
• Bottling line adjustments previously involved “guessing and checking”
• Custom sensor wrapped around model bottle pinpoint where high & low forces occur across the belt
ABOUT TEKSCAN
• Tekscan has manufactured tactile pressure and force measurement sensors since the mid ’80s
• Our technology is found in thousands of applications, primarily in the following markets:– Embedded Sensing– Test & Measurement– Medical– Dental
• We are ISO 9001 and 13485 certified• Dedicated team of engineers eager to
help make your project a success
