This is a 2nd order control system. LVDT forms part of input transducer, and stepper motor becomes the actuating element. In this trainer, simple ON-OFF control is implemented when used with Microprocessor trainer Model MPT-85. In order to allow the control action, the set point of final position of LVDT displacement forms an Input element to the controller. The controller determines how fast the desired position should reach.

In order to facilitate the above objectives, an external Microprocessor trainer Model MPT-85 will act a controller. The student learns how to write a control algorithm to meet the above objective.

Specifications:

• LVDT : ± 10mm LVDT
  
• Signal conditioner: Sine generator, instrumentation amplifier, and buffer amplifier.
  
• Display: On-board, 3-½ digit displacement indicator
  
• ADC: 8 –BIT compatible with MPT-85
  
• Stepper Motor: 2 Kg/cm2 with necessary power drivers.
  
• Built-in Power Supply
  
• Transducer assembly: The entire LVDT and the Stepper Motor is located in an ergonomically styled cabinet.
  
• Connections: using 15 Pin D-Type connector. Note: This trainer requires an external Microprocessor Trainer Model MPT-85.