Development of a taction system using piezoelectric film
Abstract
The piezoelectric properties of materials such as naturally occurring quartz have been used in pressure and vibration sensors for many decades. Over the last twenty years synthetic crystals have been developed with improved mechanical properties and improved machinability over naturally occurring quartz. A more recent development is a plastic film which displays the piezoelectric property. The film is finding application in areas where crystals would be impossible or difficult to use because of its flexibility and ruggedness as compared to quartz. A taction system is a multi-sensor touch sensing system. A taction system was designed using piezoelectric film. Digital signal processing techniques were used to acquire and display the voltage produced by an array of sixteen tactile sensors. It was demonstrated that the taction system could be used in a variety of applications requiring multiple pressure measurements such as touch sensing in robotics and in prosthetic devices.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- May 1990
- Bibcode:
- 1990STIN...9114544H
- Keywords:
-
- Multisensor Applications;
- Piezoelectricity;
- Polymeric Films;
- Signal Processing;
- Tactile Discrimination;
- Digital Systems;
- Plastics;
- Pressure Measurement;
- Prosthetic Devices;
- Quartz Crystals;
- Robotics;
- Touch;
- Vibration;
- Electronics and Electrical Engineering