l. Software i. All windows are independent concurrent and resizable but contained within a single environment ii. Instruments include 4 channel data logger, bar graph display, voltmeter, frequency counter and transfer function analyzer iii. Includes practical instructions, associated theory, background material and patching lead configuration instructions iv. An integrated instructional and hardware control delivery system v. Graphical connection diagrams for the hardware vi. Step by step practical instructions vii. All required test instrumentation must provide within the software viii. All instrumentation includes the ability to make accurate measurements using cursors as well as print and save the displays for inclusion in student reports m. Power supply i. +/- 15 volt 1.5 amps ii. +5 volts 0.5 amps n. Electronic unit i. Open printed circuit board with front panel mimic containing ii. Four input error amplifier iii. PID analogue controller with independent gain controls iv. Dual time-constant integrator v. LED display of encoder signals vi. Embedded microprocessor containing multiple control algorithms vii. USB2 interface viii. 2 channel a/d input ix. 2 channel analogue and pwm d/a output x. 4 channel a/d instrumentation interface xi. Sweep function generator 0.1 Hz – 5 Hz, sine square and triangle xii. 2 variable attenuators xiii. Variable d.c signal o. Mechanical plant i. Open board format containing a servo mechanism and support electronic ii. Permanent magnet motor with armature current signal output iii. Tachogenerator 2.5 volts/1000 rpm iv. Magnetic eddy current brake v. Input and output potentiometers vi. Two-phase incremental shaft encoder six bit Gray code shaft encoder Power amplifier, linear and pwm vii. Switchable three figure LCD meter for speed or voltage