SALIENT FEATURES :
ADTRON’s Instrumentation Tutor is a very versatile training system. It consists of a wide range of transducers, its various instrumentation and signals processing methods necessary associated power supplies, excitation sources and various electro-mechanical jigs and fixtures for actual working of the various transducers.
ADTRON’s Instrumentation Tutor is modular in format, wherein each transducer is treated individually and then, using the electronic instrumentation, it is shown how they integrate into complete measurement system. The various transducers covered in this instrumentation tutor utilizes a variety of physical properties so that in total a very comprehensive treatment of the subject is achieved.
ADTRON’s Instrumentation Tutor is specialized bench – top modular study system divided into 3 parts. It is suitable for most Engineering disciplines. Here mathematics is kept to minimum level consistent with that necessary to cover the subject adequately. The coverage is equally suitable for fields of electronics and electrical engineering, chemical engineering, process control and instrumentation physics and also mechanical engineering.
PART – I
Part – I consist of the following transducer for displacement measurement and speed measurement.
A. LINEAR DISPLACEMENT :
1. LINEAR VARIABLE DIFFERENTIAL TRANSFORMER ( LVDT ) :
This transducer is used to demonstrate the principle and working of a movable core. A variable excitation source is provided along with electronic instrumentation and digital readout. Calibration of LVDT can be carried out and checked, by using the special built – in micrometer arrangement.
TECHNICAL SPECIFICATIONS :
Parameter Measured : Linear Physical Displacement.
Measurement System : a. Micrometer.
b. Transducer with electronic instrumentation.
Transducer : Spring Loaded Core Type LVDT.
Configuration : Axial type.
LVDT Full Stroke Range: + 10 mm.
Actual Displacement : By micrometer arrangement.
Pitch : 1 mm.
Excitation Source : Sine wave with variable frequency and amplitude.
Readout : 3.5 digit digital display to measure 0 to 2000mV AC indicating displacement in millivolts.
2. INDUCTIVE TRANSDUCER :
This transducer is used to demonstrate its principle and working for linear displacement measurement. As special micrometer screw type arrangement to vary the displacement accurately, a variable excitation source electronic instrumentation and a digital read – out are provided.
TECHNICAL SPECIFICATIONS :
Parameter Measured : Linear Physical Displacement.
Measurement System : a. Micrometer.
b. Transducer with electronic instrumentation.
Transducer : Inductive core type.
Configuration : Axial type.
Actual Displacement : By micrometer screw type arrangement.
Excitation Source : Sine wave.
Readout : 3.5 digit digital display to measure 0 to 2000mV AC indicating displacement in millivolt.
3. LINEAR MOTION TRANSDUCER ( POTENTIOMETRIC ) :
This transducer is used to demonstrate its principle and working to measure physical displacement. A special micrometer arrangement to vary the displacement accurately, excitation source, electronic instrumentation and digital readout are provided.
TECHNICAL SPECIFICATIONS :
Parameter Measured : Linear Physical Displacement.
Measurement System : a. Micrometer.
b. Transducer with Electronic Instrumentation.
System Range : 50 mm.
Configuration : Axial type.
Actual Displacement : By micrometer arrangement.
Pitch : 1 mm.
Excitation Source : + 5V DC Regulated Power Source.
Readout : 0.5″, 3.5 digit digital display to measure 0 to 50mm displacement in terms of mV.
Note : Common digital readout for LVDT, Inductive Transducer and Resistive ( Potentiometric )
transducer.
B. RPM MEASUREMENT :
1. MAGNETIC PICK – UP :
This part of the module demonstrates measurement of speed using Magnetic pick up transducer is a versatile stand alone unit useful in the study and demonstration of the principle and working of a speed measuring system using magnetic pick up. The trainer consist of the complete instrumentation viz., pulse generator, counter circuit, decoder, driver and seven segment display to indicate the speed controller. The motor unit with magnetic pickup is separately housed.
TECHNICAL SPECIFICATIONS :
MOTOR UNIT :
Motor : Specially designed bi-directional permanent magnet armature controlled DC Motor.
Power : 6 Watts.
Speed : 3000 RPM max.
Voltage : 12V DC.
Torque : 0.3 kg. cm.
Mounting : Motor mounted with wheel and magnetic pick up transducer.
Counter : Special connector with wires to connect motor unit to measuring unit.
B. PHOTOELECTRIC PICK – UP :
This part of the module demonstrates measurement of speed using photo electric pickup transducer is a versatile stand alone unit useful in the study and demonstrations of the principle and working of a speed measuring system using photo electric pickup. The trainer consist of the complete instrumentations viz,. pulse generator, counter circuit, decoder, driver and seven segment displays to indicate the speed in revolution per minute ( RPM ). It also has a motor speed controller. The motor unit with electrical pickup is separately housed.
TECHNICAL SPECIFICATIONS :
Motor : Specially designed bi-directional permanent magnet armature controlled DC Motor.
Power : 6 Watts.
Speed : 3000 R. P. M. max.
Voltage : 12V DC.
Torque : 0.3 Kg cm.
Mounting : Motor mounted with wheel and magnetic pick up transducer.
Counter : Special connector with wires to connect motor unit to measuring unit.
Note : Common Digital meter for both Magnetic and Photoelectric Pickup to indicate Speed in RPM.