Tactile Grip Force and Pressure Sensing

The Grip™ system measures and evaluates static and dynamic pressures from grasping objects. Grip measures interface pressure for human hand and finger gripping applications to assess comfort, design, and ergonomics. The system is used to improve design for a more ergonomically sound product, study carpal tunnel and repetitive motion syndrome, or analyze the human hold on various tools and sports equipment. It is an ideal tool for collecting vital information and insight to enhance product design, manufacturing, quality, and research.

Key Features

  • Grip Wireless for Bat Grip EvaluationGrip Wireless for Bat Grip EvaluationSimultaneous measurement of left and right hands
  • Numerous independent sensing elements for localized detection and sensing of pressure points
  • One subject can grip several objects in many ways, once the hand is instrumented
  • High scanning rates of up to 750Hz (tethered version)
  • Paper-thin sensor form factor allows for full range of hand motion
  • One size fits all
  • Durable and reusable sensor

 

Grip System Configurations

The Grip system is available tethered or untethered for increased mobility and range of measurement. Your specific application will determine the best-suited connection type.

Tethered ModelTethered Model

Every VersaTek™ based system uses specially designed scanning electronics called Cuffs. The Cuffs connect to the sensor to gather data, which is then processed and sent to your computer, via USB connection. VersaTek electronics run at the fastest speeds and are compatible with other VersaTek sensors, giving you the ability to add in-shoe, prosthetic, grip, and seating & positioning capabilities to your Tekscan System.

 

 

grip tethered diagram
Wires connect the sensor and scanning electronics on the subject to the computer via USB port. Dynamic events are captured with scan rates of up to 750 Hz.

 
grip wireless diagram Hub is configured to support both Wireless and Datalogger functionality.

 

To learn more about the data acquisition electronics and sensor performance specifications, please visit the Technology page.

Components depend on system configuration. Additional items may be included with your system purchase.

View computer requirements

Grip Sensor - 4256E

Grip Sensor Model 4256EGrip Sensor Model 4256EThe Grip™ System uses a thin, high-resolution sensor that can be used directly on a hand or built into a glove. Each sensor has eighteen sensing regions that can be individually positioned over important anatomic sections of the fingers and palm. Gaps between the sensing areas allow the joints to be avoided, move freely, and not interfere with grip measurement. Each sensing region has multiple sensing elements (Sensels™) for localized identification of pressure points on the hand.

 

Pressure Mapping Sensor 4256E

Pressure Mapping Sensor 4256E

For use in hand grip applications.More

Software Features

Example of grip pressure data while subject operated an industrial floor polisher.Example of grip pressure data while subject operated an industrial floor polisher.

  • Access real time or recorded data in 2D & 3D
  • Key metrics; total force, peak pressures, and center of force
  • Multiple graph options to plot data
  • View and compare multiple test results simultaneously
  • Ability to attach a digital image to each frame of a Tekscan movie
  • Export data to ASCII or AVI files

The software is available in several languages including Spanish, French, and German. View software languages available.

Related Products

 

Grip System Applications

Steering Wheel Ergonomics

Example of Grip System feedback while performing common driving activities.Example of Grip System feedback while performing common driving activities.

Challenge:

To quantify key grip and movement data that enhances the driver experience.

  • Design to address important ergonomic needs
  • Determine the ideal placement of accessory buttons

Solution: 

The Grip pressure mapping system was used to identify and measure dynamic pressures and forces on the hands and fingers while gripping, lifting, and turning the steering wheel.

  • Also proved useful in vibratoin studies, whether driving or idling

Occupational Ergonomic Design

Example of Grip System feedback while using a piece of equipment or tool.Example of Grip System feedback while using a piece of equipment or tool.

Challenge:

To design a new floor polishing machine handle to reduce operator fatigue and discomfort.

  • Addressing occupational risks, like carpal tunnel syndrome

Solution: 

The Grip pressure mapping system was used to quantify forces and pressures felt across a subject's hand while operating the equipment.

  • Pinpointed areas in the handle design that could use better support

Medical Device Usability Studies

Example of Grip System feedback while using a piece of equipment or tool.Example of Grip System feedback while using a piece of equipment or tool.

Challenge:

To improve the design of a hand-held injector with better ergonomic grip force.

  • Also, to benchmark against competitive designs

Solution: 

The Grip pressure mapping system was used to optimize syringe design and address usability needs.

 

For More Grip System Application Examples,

Click Here

There have been a number of research projects conducted where Tekscan's pressure measurement technology has played a crucial role.

Have a Question about the Grip System?

Contact An Engineer