NEWS

NT-TTR wire for electric current actuator was lineup

 

 

For those who are thinking of reducing the size and cost of actuators

 

1. How to use this wire

Shape memory alloy wires elongated and shrank due to martensitic transformation when the temperature is changed under constant load. In addition, shape memory alloy wires have high electrical resistance and can be easily heated by electric surrent. Therefore, as shown in the figure below, the wire can be elongated and shrank by turning the current on and off. By utilizing this phenomenon, the actuator can be driven.
 

Elongation and shrinking of the wire due to ON / OFF of the current

 

2. Benefits of using TTR actuators

  • Can be operated simply by electric current On/Off into wire
    → Compact and lightweight, simple structure, low cost
  • Light weight but high output (right figure)
  • Force and operating speed can be controlled by the amount of energization
  • There is almost no operating noise and the movement is smooth.

(SMA:Shape Memory Alloy)

Comparison graph of materials for various actuators
 

Comparison graph of materials for various actuators

 

3. Difference from conventional NT line

  • The fluctuation of the strain at electric current On/Off depending on the number of repetitions is small.
  • There is almost no reduction in strain range during operation
  • Characteristics are stable regardless of the cycles
Changes in strain during operation
 

Strain change graph during operation

 

 

→Characteristic comparison data

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