In MicroMo's DC-Tachogenerators, the commutator and brushes are made of a high quality gold alloy. This results in a very low, constant transition-resistance, minimum starting friction and virtually insensitivity to environmental conditions. The linearity between rotational speed and generator-voltage makes these tachogenerators an ideal servo-component for speed indication and control.
DC Motor-Tacho Combinations
MicroMo's DC-Motor Tachogenerator combinations are based on the FAULHABER skew wound rotor coil. The low rotor inertia and no cogging result in unmatched acceleration and deceleration times. The patented single shaft commutation system increases torsional rigidity thereby increasing the resonant frequency. Excellent tacho signals ensure precise supervision and regulation of speed even after long standstilll intervals.
General Information
Technology
Motor and tachogenerator feature the patented skew-wound ironless rotors. The mono-axis design with the two commutator systems, facing each other in a patented arrangement, mounted on a single solid shaft, has excellent torsion characteristics and the highest frequency response possible.
Features
This unique design has the following advantage:
Linear current/torque and speed/back EMF characteristics
Low rotor inertia – short time constant
High efficiency – high output/volume ratio
Smooth running
Commutation system
The DC-micromotors have multisegmented precious metal or copper commutators and multifingered precious metal or copper impregnated graphite brushes. The motor tachogenerators have commutators and brushes made of gold alloy to assure a high quality output signal and provide a minimized but constant contact resistance as well as low sensitivity to environmental changes.
Direction of rotation
All motor-tachogenerator units are designed for clockwise or counter-clockwise rotation. Direction of rotation viewed from the front face, positive voltage on + terminal or red lead gives clockwise rotation.
Encoders
All DC-Motor-Tacho units can be offered in combination with encoders. Please see the data sheets for this information.
Gearheads
All DC-Motor-Tacho units can be combined with gearheads. Please see the datasheets for this information.
