sigma.7
The sigma.7 is the most accomplished master haptic interface ever designed by Force Dimension. Introducing a redesigned delta base, this device is the first commercial haptic interface to offer seven active degrees of freedom, including high-precision force-feedback grasping capabilities.
Finely tuned to display perfect gravity compensation, the force-and-torque-feedback end-effector offers extraordinary haptic performance, enabling instinctive interaction with complex haptic applications.
Designed for advanced aerospace and medical industries to enable elaborate control of dexterous robots, its highly ergonomic and distinctive design make the sigma.7 the reference device for safety-critical applications.
The sigma.7 is also the first and only commercial 3D force-feedback interface to have ever been certified and used in space.
The device is available in left- and right-hand configuration and can be integrated in a dual workstation setup for bimanual operation.
Distinctive Design Features
Finely built around its unique parallel kinematics structure, the sigma.7 device is designed for performance. Its superior mechanical stiffness, combined with its real-time USB 2.0 controller, enables the rendering of high contact forces at a rate attaining 4 KHz. To provide the highest degree of haptic transparency, accurate gravity compensation is maintained in translation and orientation space by perfectly coupling passive and actuated components together. Each system is individually calibrated to ensure repeatable and optimal precision and performance. Its unique kinematics design perfectly decouples translations and rotations, enabling the sigma.7 to exceed the requirements of the most demanding applications. Force Dimension also provides advanced technical support for dedicated applications that require custom end-effectors for the sigma.7. |
Application Development
| workspace | translation rotation gripper | ∅ 190 x 130 mm 235 x 140 x 200 deg 25 mm | forces | translation rotation gripper | 20.0 N 400 mNm 8.0 N | resolution | translation rotation gripper | < 0.0015 mm 0.013 deg 0.006mm | interface | standard rate | USB 2.0 up to 4 KHz | power | universal | 100V - 240V | platforms | Microsoft Linux Apple Blackberry WindRiver | Windows all distributions macOS QNX VxWorks | software | SDK Haptics SDK Robotics CHAI3D | ergonomics | available in left- and right-hand configuration | structure | delta-based parallel kinematics hand-centered rotation movements decoupling between translation and rotation movements active gravity compensation | calibration | automatic driftless | user input | 1 simulated button using the force gripper | safety | velocity monitoring electromagnetic damping |
