Experiments Included:

Basic Control Systems Equipment and Terms Used

  • Study the difference between open loop and closed loop systems
  • Expression for the overall gain of a negative feedback closed loop system
  • Calculation of overall gain of a negative feedback closed loop system from given information
  • Basic components of a closed loop system and explain their functions
  • Meaning of terms associated with control system equipment

Positional Resistance Transducers

  • Basic construction of rotary and slider variable resistors
  • State that the resistance section may be either a carbon track or wirewound
  • Characteristics of output voltage against variable control setting
  • Comparison of a carbon track variable resistor to the wirewound type

Wheatstone Bridge Measurement

  • Basics of Wheatstone Bridge circuit for resistance measurement.
  • Describe the term “null balance”.
  • Calculation of an unknown resistance from the Bridge values at balance
  • Factors affecting the resolution and accuracy of measurements
  • Discuss the reason for the three-wire resistance circuit

Temperature Measurement

  • Characteristic of an IC temperature sensor
  • Construction and characteristics of a platinum RTD resistance transducer
  • Construction and characteristics of an NTC Thermistor
  • Characteristic of NTC Thermistor bridge circuits
  • Construction and characteristics of a Thermocouple
  • Deduce temperatures from a voltage reading across a transducer

Light Sensors

  • Characteristics of a filament lamp
  • Construction and characteristics of a photovoltaic cell
  • Construction and characteristics of a phototransistor
  • Construction and characteristics of a photoconductive cell
  • Construction and characteristics of a PIN photodiode

Linear Position or Force Applications

  • Construction, principal and characteristics of a Linear Variable Differential Transformer (LVDT)
  • Construction and Characteristics of a Linear Variable Capacitor
  • Construction and Characteristics of a Strain Gauge

Environmental Measurements

  • Construction and characteristics of an air flow transducer
  • Construction and characteristics of an pressure transducer
  • Construction and characteristics of a humidity transducer

Rotational Speed and Position Measurements

  • Slotted Opto Transducers for Counting and Speed Measurement
  • Reflective Opto Transducers and Gray Coded Disc for Position Measurement
  • Inductive Transducers for Speed Measurement
  • Hall Effect Transducers to Speed and Positional Measurement
  • Construction, Principles and Application of a Tacho-Generator to Speed Measurement

Sound Measurements

  • Construction and characteristics of a microphone
  • Construction and characteristics of an ultrasonic receiver and transmitter
  • Comparison of various methods of measuring sound signals

Sound Output

  • Construction and characteristics of a moving coil Speaker
  • Construction and characteristics of a buzzer

Linear or Rotational Motion

  • Construction and characteristics of a DC solenoid
  • Construction and characteristics of a DC relay
  • Construction and characteristics of a DC solenoid air value
  • Construction and characteristics of a DC permanent magnet motor

Display Devices

  • Characteristics and application of the Timer/Counter
  • Characteristics and application of the LED Bargraph display
  • Characteristics and application of the Moving Coil Meter
  • Calculate the requirement to extend the voltage range of a Moving Coil Meter
  • Selection of a suitable device for a particular voltage measurement

Signal Conditioning Amplifier

  • Characteristics and application of DC amplifiers
  • The term “Offset” and the need for offset control
  • Characteristics and application of an AC amplifier
  • Characteristics and application of a power amplifier
  • Characteristics and application of a current amplifier
  • Characteristics and application of a buffer amplifier
  • Characteristics and application of an inverter amplifier
  • Characteristics and application of a differential amplifier

Comparators, Oscillators and Filters

  • Characteristics of a comparator
  • Effect of hysteresis on the operation of a comparator
  • Characteristics of an alarm oscillator
  • The term “latch” applied to an alarm oscillator
  • Characteristics of an electronic switch
  • Characteristics of a 40KHz oscillator
  • Characteristics of band pass filters
  • Characteristics of low pass filters

Mathematical Operations using OP AMPS

  • Characteristics of a summing amplifier
  • Characteristics of an integrator
  • Characteristics of a differentiator
  • Characteristics and application of a “sample and hold” circuit

Control Systems Characteristics

  • Characteristics of an ON/OFF system
  • Characteristics of a Proportional system
  • Characteristics of an Integral system
  • Characteristics of a Derivative system
  • Practical system 3-term (or PID) controller

Practical Control Systems

  • Characteristics of an ON/OFF temperature control system
  • Characteristics of a light controlled ON-OFF system
  • Characteristics of a positional control system having:
    • Proportional
    • Proportional + integral
    • Proportional + derivative
    • Proportional + integral + derivative control
    • Characteristics of a speed control system
Category:

IT-5927 Trainer introduces students to input and output transducers, signal conditioning circuits and display devices through a wide range of practical activities. The study module includes transducers and instrumentation trainer and a curriculum manual.

Features:

  • Sensors installed on-board
  • Transducers installed on-board
  • Control Circuits Installed
  • Drivers Installed
  • Protection Circuits Installed
  • Display Devices Installed
  • Measuring Devices Installed

Technical Features:

  • Fixed Supply DC: +5V, -5V, +12V, -12V
  • Pneumatic Supply: Internal Pneumatic Pump with Air Valve
  • Signal Conditioning Circuits:
  • 2X Buffers
  • Inverter
  • Comparator with Switchable Hysteresis
  • 2X Amplifiers with Switchable Gain and Offset Control
  • Current Amplifier
  • Summing Amplifier
  • Differential Amplifier
  • Instrumentation Amplifier
  • X100 Amplifier
  • AC amplifier
  • Oscillator 40KHz
  • Filter 40KHz
  • Low-Pass Filter with Switchable Time Constant
  • Precision Full-Wave Rectifier
  • Sample and Hold Circuit
  • Integrator with Switchable Time-Constant
  • Differentiator with Switchable Time Constant
  • V/F and F/V Converters
  • V/I and I/V Converters
  • Alarm Oscillator with Switchable Latching
  • Power Amplifier
  • Electronic Switch
  • Level Converter
  • Schmitt Trigger
  • Wheatstone Bridge
  • Input / Output Transducers:
  • Rotary Carbon Track
  • Rotary Wirewound
  • Precision Rotary Potentiometer
  • Slide Potentiometer
  • Linear Variable Differential Transformer(LVDT)
  • Linear Variable Capacitor
  • Load Cell 150g
  • Dynamic Microphone
  • Ultrasonic Receiver
  • Ultrasonic Transmitter
  • Buzzer
  • 8 Ohm Speaker
  • Relay
  • Solenoid
  • Tacho Generator
  • Sensors:
  • NTC Thermistors
  • Type ‘K’ Thermocouples
  • I.C. Temperature Sensor
  • Photoconductive Cell
  • Photovoltaic Cell
  • Phototransistor
  • PIN Diode
  • Air-Flow Sensor
  • Air Pressure Sensor
  • Slotted Opto-Sensor
  • Reflective Opto-Sensor
  • Inductive Proximity Sensor
  • Hall Effect Sensor
  • Humidity Sensor
  • Measuring Devices:
  • Counter / Timer
  • 10-Point LED Bar Display
  • Moving Coil Meter
  • 3 ½-Digit Digital Voltmeter
  • 3 ½-Digit Digital Ammeter
  • Output Devices:
  • Heater
  • Filament Lamp
  • DC Motor
  • Solenoid Air Valve
  • Single H-Bridge with PWM Control

 

Accessories: Power Cord, User Manual, Experiment Manual, 2mm Patch Cords

Data Acquisition Unit / Interface Software
IT-5927SW (optional)

Features:

  • Channels: 2 independent channels sampled simultaneously
  • Sampling Frequency: 20MSamples/second maximum
  • Vertical Resolution: 10 bits per channel (1:1024)
  • Vertical Bandwidth: 2 MHz
  • Vertical Input Range: ±250mV to ±25V full scale
  • Vertical/Horizontal Scale: 10 major divisions
  • Triggering: Digital comparison with input signal
  • Memory Depth: 1K Samples each channel
  • Display Refresh Rate: > 2 updates/second

Software Features:

  • Spectrum Analysis(FFT), X-Y Plot
  • Auto Measurements etc.

 Waveform Generator

  • Frequency Range: 0.1Hz to 3MHz
  • Frequency Resolution: 0.1Hz
  • Output Amplitude: +/-3V
  • Vertical Resolution: 8 bits at all amplitude settings
  • Waveforms: Sine, Square, Triangle, Ramp (Sawtooth) and others
  • Arbitrary Waveform: 8 bit resolution vertical, 256 time points
  • Noise: Pseudo-random, 8 bit analog noise, sample rate 12.5Mz, sequence length 21 seconds

Digital I/O

  • Output: 8 bits, GUI (Graphical User Interface) controlled, 5 volt
  • Input: 8 bits, GUI indicators, 5 or 3 volt
  • Pulse waveform: Variable duty cycle at constant frequency 35Hz to 72kHz in steps of x2
  • Interrupt: Selectable level and slope, illuminates ‘Interrupt’ indicator

Sensors

  • Air Pressure: Measure Pressure on channel A or B input. Calibration available.
  • Temperature: Measure Temperature on channel A or B input. Calibration available.
  • Weight: Measure Weight on channel A or B input. Calibration available.
  • Grey Coded Disk: Show position of needle against grey code value.
  • Voltmeter: Show volts against each channel of scope.

Others

  • Indicators: Power LED (Green), Activity LED (Red)
  • Interface: USB 2.0

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