AC Induction Motors

AC Induction Motors provide high reliability and high efficiency, with unparalleled performance per unit volume and weight. The engineering reference data delineated nominal motor performance for our seven frame size motors, over a range of operational frequencies. With advances in motor winding configurations, control electronics, and drive techniques, high performance AC motors are no longer limited to 400 Hz operation. Induction motors are used in many applications where less reliable Brush Type DC motors or high complexity Brushless Motors were previously used.

Description / Applications: Rotary Accelerometers (RA's) provide a DC output voltage in proportion to the rotary acceleration of the motor shaft. These permanent magnet devices require no excitation or input power. Ra's are ideal components to achieve a higher order servo stability performance characteristic. The acceleration signal may be used alone, or the voltage may be integrated to provide velocity plus acceleration information. Feedback can eliminate limited cycle oscillation in geared servo systems, and allow high forward loop gain through response shaping networks (PI or PID) in digital or analog signal processing networks. See Page 23 for a Functional Block Diagram or a Rotary Accelerometer in a Close Loop Servo Application.

Imperial Units
Type Output Voltage Output Load Added Length Accelerometer
Diameter
Added Inertia Added Weight
V/100kRAD/sec² Ohms Inches Inches Oz-In-
sec²
Oz.
03ACC 0.60 50,000 0.600 0.750 2.8 E-06 0.750
05ACC 2.3 50,000 0.600 1.250 5.5 E-05 2.3

Metric Units
Type Output Voltage Output Load Added Length Accelerometer
Diameter
Added Inertia Added Weight
V/100kRAD/sec² Ohms mm mm kg-m² kg
03ACC 0.60 50,000 15.3 19.1 2.0 E-08 0.021
05ACC 2.3 50,000 15.3 31.8 3.8 E-07 0.065