DYNASIM®
Piezo technology for input systems – suitable for large volumes
DYNASIM® consists of piezo layers, electrical conductors and insulators printed on polyester film via a screen printing process. The keypress generates a charge in the piezopills which is used as a switch signal. Due to sturdy overlay material the DYNASIM® keyboard is extremely robust, resistant and long-lasting.
Resistance against vandalism, a switching guarantee and a high level of user-friendliness belong to the most important qualities of this unique keyboard which is based on piezotechnology. The pathless operation allows a simple and solid construction with a small depth of installation. Furthermore there can be chosen out of many overlay materials.
Whether of reasons of design, lighting, robustness, agility or resistance against vandalism:
There are many positive
arguments for DYNASIM®.
Large volumes
The DYNASIM® keyboard combines all the advantages of Algra piezo keyboards and offers attractive prices at high volumes. It can be mass produced with largely automated methods thanks to screen printing processes.
Advantages
- Various overlay materials possible
- EMC shielding integrated
- Extremely robust
- Large batches possible, same as membrane keyboards
- Convex form possible
- Choice of key size
- Vandal resistant
- adjustable touch sensitivity
Typical applications
- Washing machines
- Dish washers
- Coffee machines
- Cash machines
- Vending machines
- Cashless payment systems
- Hifi-systems
- Elevators
- Parking meters
- Industrial controls
- And many more
Technical data
Mechanical values
Mechanical loading:
up to 200 N/cm²
Operation force:
0.5 to 100 N
Required operation speed:
approx. 10 N/s
Maximum cycles per second:
> 1000 Hz
Storage temperature:
–40°C to +85°C
Operating temperature:
–40° C to +60 °C
No. of press cycles:
> 10 million
Electrical values
Charge from a 4x4 matrix (1⁄2 key):
1 nC/N
Charge from one key:
2 nC/N
Capacity 4x 1⁄2 keys:
10 nF
Capacity of one key:
5 nF
Overlay possibilities
Polycarbonate/plexi:
thickness 0.2–0.8 mm, norm 0.5 mm
Aluminium:
thickness 0.3–0.5 mm, norm 0.3 mm
Stainless steel:
thickness 0.3–0.4 mm
Glass:
0.5 mm
The choice of material strength can be influenced by the size of the keys and the key spacing.
