3633 West MacArthur Blvd., Suite 412, Santa Ana, CA 92704 Tel: (714) 513-2200 
                                                                         fax: (714) 513-2204

Aura/Supra Multi-Axis Force Sensor Family of Products

The Aurora/Supra Series

These award winning sensors specifically designed for commercial and light industrial cursor control systems are based on unique patented technology combining unique strain sensitive materials with proprietary processing techniques to produce a unique micro-miniature device capable of interfacing with standard IBM Track Point electronics.  

The Aurora and Supra product line represents the first solid, ceramic two- or three-axis force sensor based on unique technology innovations.  This revolutionary design provides a distinct linear output in all axes, resulting in precise, smooth motion control.  The design does not have any moving or rubbing parts to degrade performance or reliability.  The sensors have undergone complete environmental and mechanical testing and have been tested to 10 million cycles in all three axes.  This makes for a highly reliable and rugged product.

The Aurora products are micro-miniature devices with post heights from 5mm 7.8mm and the Supra products are more robust systems with post heights of up to 23mm

Various package options available including: fully configured systems with on board sensors and IBM Track Point microprocessors featuring PS2 or RS232 output signals or stand alone sensors and electronics package options.  Customized interface and packaging also available to fit application specific requirements.

Applications:

• Cursor Control  for lap top, desk top and industrial / military keyboards with either customer supplied or Bokam supplied interface electronics (IBM Track Point and Track Point IV systems compatible)
• Motion Control applications for Medical and Industrial equipment where micro-miniature user interface is required.
• Industrial / Electronic display and monitoring and test equipment interface panels.
• Finger tip wheelchair and robotics equipment operation
• Motion Control applications requiring 2 to 3 axis functionality

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Standard Specifications:

All specs are based on standard capabilities.  Customization of all parameters should be discussed with the Bokam Aura Customs Team.

Operation Voltage ------------------------------5VDC
Maximum Current Draw --------------------------7mA
Resistance:
Idle Point (no load)    

X-Axis (Vdc): ----------------- 2.5V +/- 25 mV
Y-Axis (Vdc): ----------------- 2.5V +/- 25 mV
Z-Axis(Vdc): ------------------ 2.5V +/- 25 mV

Sensitivity

X-Axis (Vdc): 4.7 mV interpolated tested          
                        average (200gm applied force)
Y-Axis (Vdc): 4.7 mV interpolated tested          
                        average (200gm applied force)
Z-Axis(Vdc):  0.7125 mV interpolated tested          
                        average (500gm applied force)

Working Range:              Up to max. break strength
Linearity, X & Y:                                            +/- 1%
Linearity, Z:                                                   +/- 1%
Cable Peel Strength             801 Kg tested average
Post Break Strength, Z:       15.3 Kg tested average
Post break Strength, X & Y:  4.2 Kg tested average
Storage Temperature                                 0C to 85C

Customization Options:

• Maximum Strength of the sensor can be adjusted based on the sensor selection (Aura/Supra) and other design parameters
• Operating temperature range of the sensor can be expanded to Mil-Standard temperatures and higher.
• Post height can be modified based on customer interface requirements
• Interface plate dimensions can be modified based on customer interface requirements
• Output cable can be customized based on interface requiremenrts

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