Transducers

A "best in the nation" program requires best in the world training equipment from VAL-TEC.

877-244-3769 (toll-free) val-tec@val-tec.com .Transducers VAL-TEC, LLC.

User Reference: Iowa State University, Ames, Iowa

D1750 Transducers and Instrumentation Trainer

The Transducers and Instrumentation Trainer introduces students to input sensors, output actuators, signal conditioning circuits and display devices through a wide range of hands-on practical activities. This self contained trainer has all the necessary power supplies, light sources and compressed air supplies to carry out a wide range of hands on experimental work. It is possible to build and test complete closed loop control systems for rotary speed and position making the trainer ideal for use in a control engineering teaching.

The trainer is supplied with a detailed curriculum manual that provides background theory, practical activities and student assessment questions.

A student workbook is also provided, allowing students to create a personalised record of their work together with practical results as they work through the curriculum materials. Finally, an instructor’s guide is provided offering solutions to all of the questions and practical activities contained in the curriculum manual and student workbook.

The bench-mounted trainer features the following devices and circuits:

Input Transducers:

	Carbon track, wirewound and precision rotary potentiometers
	Slide potentiometers
	NTC thermistors
	Type 'K' thermocouples
	I.C. temperature sensor
	Photoconductive cell
	Photovoltaic cell
	Phototransistor
	PIN diode
	Linear variable differential transformer
	Linear variable capacitor
	Strain gauge
	Air-flow sensor
	Air pressure sensor
	Slotted opto-sensor
	Reflective opto-sensor
	Inductive Proximity Sensor
	Hall Effect sensor
	Precision servo-potentiometer
	Tachogenerator
	Humidity sensor
	Dynamic microphone
	Ultrasonic receiver

External Power Supplies

	-5V, +5V 1A precision supply
	-12V, +12V 1A regulated supply

Pneumatic Supply

Internal Pneumatic pump

The system also features a shaft assembly that carries a d.c. motor,

tachogenerator, slotted and reflective opto-sensors for incremental and

absolute position and a 360 degree precision potentiometer with indicator

dial for closed-loop position control experiments.

D1760 - Data Acquisition of Control Systems

User Reference: Iowa State University, Ames, Iowa

The D1760 study module introduces students to the monitoring and recording of control system performance using a personal computer (PC).

The study module includes a curriculum manual and a virtual instrument. It is designed to provide an extension to work carried out using the D1750 Transducers &

Instrumentation trainer. When used in conjunction with a student personal computer (PC), the curriculum

manual is fully compatible with the ClassAct computer managed learning system.

The curriculum manual is divided into a series of chapters. Each covers a specific topic area and provides background

theory, practical activities and student assessment questions. Each chapter is designed around a list of

performance objectives. These objectives are used by the ClassAct management system to generate a student competency report.

A student workbook is also provided, allowing students to record basic theory and practical results as they work through the curriculum manual. Finally, the study module includes an instructor’s guide. This provides solutions

to all of the questions and practical activities contained in the curriculum manual.

The study module is also supported by optional computer aided instruction (CAI) material.

Typical topic areas include:

Control Systems

Thermal Systems

Temperature Transducer Response

Light-Controlled Systems

Proportional Control

Proportional-Integral Control

Proportional-Derivative Control

P-I-D Control

Velocity Feedback

Speed Control Systems

Typical activities include:

Interpret a plot of the output of an ON/OFF temperature control system using a data-logging package.

Compare the characteristics of a platinum RTD transducer and NTC thermistor.

Use a virtual oscilloscope facility to display the response of optical transducers and light operated systems to variation of incident light.

Investigate the step and ramp input response characteristics of a proportional control system with variable

proportional gain.

Investigate the effect of adding variable integral control to a proportional control system.

Investigate the effect on a proportional control system of adding variable derivative control.

Investigate the effect of adding variable integral and variable derivative control to a proportional control system.

Investigate the effect of adding variable velocity feedback to a proportional control system.

Items supplied with the D1760 study

module include:

VLAB2 Virtual Instrument hardware interface and power supply unit

Virtual Instrument software suite:

Digital/analog multimeters (2)

Dual trace storage oscilloscope with spectrum analyzer mode

Signal generator

Data logger

Grapher

Switchable x1/x10 oscilloscope probes (2)

BNC-4mm signal generator connection lead

Multimeter connection leads:

2mm-2mm leads (2 red, 2 black)

2mm-4mm leads (2 red, 2 black)

IT04 IM Curriculum Manual, Instructor’s Guide and Student Workbook.

Additional items required:

D1750 Transducers and Instrumentation trainer.

Windows-based personal computer

Optional supporting items include:

D3000 CAI 10.10 Transducer Technology computer aided instruction (CAI) package.

D3000 CAI 15.10 Introduction to Motor Control computer

Advanced Learning Solutions

Duane Brindle * VAL-TEC, LLC * 877-244-3769 (toll free) * fax: 866-597-1101 (toll free)

Send mail to val-tec@val-tec.com with questions or comments about this web site.