THE DISPLACEMENT SENSORS TRAINER

PREPARED BY:NOR ATTEYYA BT MAHDINOR ADILAH BT MOHD YUSOF

INTRODUCTIONThe Displacement Sensors Trainer is a :

• Modular training system• Suitable for learning about various types of

displacement sensors and their instrumentation circuits

• An experiment manual is provided to guide both of the students and lecturer

PROJECT OBJECTIVE

Successful completion of studying this trainer will enable learner to :

• Understand the functions of sensors and signal flow

• Analyze the type of sensors and signal flow• Construct a practical test (sensor) • Develop a new displacement trainer

PROJECT SCOPES

The trainer covers the following topic areas:1. Measurement principles

i. Sensorsii. Signal conditioning

2. Sensors (Static Response)i. Strain Gaugeii. Potentiometriciii. Capacitiveiv. LVDT ( Linear Variable Differential Transformer )v. Resolver

PROBLEMS STATEMENTS

• No specific trainer for displacement sensors.• Develop new displacement sensor trainer.• As a learning tool to electronic engineering

especially Control System .• Suitable for practical test.

LITERATURE REVIEW

1. Transducer Instrumentation Trainer • The trainer consist a various type of sensor. • It covered all the electronic sensor which is difficult for

student to understand and do the practical test.2.The Displacement Sensor Trainer• This trainer consist only displacement type of sensor

which is in the syllabus of Control Systems. • The design in user friendly so, student can easily make

an experiment by using the work book that also included.

ADVANTAGES

• Learning tool.• User friendly (well organized)• Theory applied.• Portable.

ELEMENTS

The sensors and signal conditioning element of this trainer are typical of those used through industry. These elements include :

• Displacement sensors• Signal conditioning (convert into voltage,

current, or display form).

PROJECT METHOD

INPUT DEVICES

For detection of :• Length of a physical object (strain gauge)• Linear or rotary displacements

(Potentiometric, LVDT)• Rotation or rectilinear displacement

(Capacitive)• Shaft Rotation (Resolver)

OUTPUT DEVICES

For the generation of :• rotary, linear and rectilinear actions.• Visual indication of voltage, current and

display (counter).• DC Motor• Buzzer• LED

PROJECT DESIGN AND LAYOUT

TRAINER CHARACTERISTICS

The Sensors trainer is :• Rugged design• Self-contained panel trainer with a steel case and

integral power supplies. • Provided a various of motion and position sensors

together with associated instrumentation circuitry.• Technical manual• Curriculum manual, instruction manual and

student work book provided

HARDWARE SPECIFICATION

Inputs : • Carbon track, wirewound and precision rotary

potentiometers. • Slide potentiometer. • Linear variable differential transformer. • Linear variable capacitor. • Strain gauge. • Resolver

Output Devices : • Ohmeter•Voltmeter • Ammeter • Display (Counter)• LED• Buzzer• Motor

Signal Conditioning : 1. Analog Conditioning• Voltage • Current

2. Digital Signal Conditioning• Counter

3. Linearization• Rotary• Linear

LVDT SENSOR

STRAIN GAUGE SENSOR

METER

DC MOTORHALH EFFECTDC MOTOR SERVO

POTENTIOMETERINDUCTIVE

CAPACITIVE SESOR

DISPLAY

GROUND

POWER SUPPLY 12V

POWER SUPPLY 5V

-12 v 12 v 5v-5 v

ON/OFF

-+

ON/OFF

RESOLVER SENSOR

PROCESS PLANAND

PROJECT SCHEDULE

Start

Project Definition

Project Sequencing

Does supervisor agree with the idea?

Project Resource Estimating

Project Duration Estimating

Does supervisor agree with the idea?

Does supervisor agree with the idea?

Schedule Development

Does supervisor agree with the idea?

Schedule Control

End

No

Yes

No

No

Yes

Yes

No

FLOW CHART OF PROCESS PLAN

B

B

Yes

ACTIVITY DURATION

1) Tools preparation2) Make Wiring Diagram 3) Wiring the

Components 4) Make Casing

5) Arrange circuit 6) Check and double

check 7) Prepare presentation8) Presentation

1 2 3 5 64 7 8

GANTT CHART

Tools preparation

Make Wiring Diagram

Wiring the Components

Make Casing

Arrange circuit

Check and recheck

Prepare presentation

Presentation

5-Jul 25-Jul 14-Aug 3-Sep 23-Sep 13-Oct 2-Nov 22-Nov

STRUCTURE AND BREAKDOWN

20%

10%

20%10%

20%

10% 10%

Percentages

Tools preparationMake Wiring DiagramWiring the ComponentsMake Casing Arrange circuit Check and recheckPrepare presentation

PROJECT BUDGET

Quantities MeasurementItem Price per unit (RM) Quantity Total

Strain gauge 32.40 1 32.40

Potentiometrically Displacement Transducer 1

Amplifier 16.50 3 49.50

Opto-electronically Displacement Transducer 1

Hall Sensor 144.00 1 144.00

Resistor 150 Ω, 2 W 0.10 30 3.00

DC-Power Supply +/-12V/3A 40.00 1 40.00

DC-Power Supply +/-5V/3A 40.00 1 40.00

Measurement Value Indicator 1

Reference Variable Generator 1

Linear Drive with DC Motor 37.70 2 75.40

Carbon track 1

Wire Wound 1

Linear Inductive Displacement Sensor 1167.00 1 1167.00

Linear Variable Capacitor 1

Meter 11.40 1 11.40

LED 0.20 20 4.00

DC Motor

Total

CONCLUSION

As a conclusion, the Displacement Sensor Trainer is one of the

best learning tools for lecturer and students. This trainer offer more benefit and user friendly.

This trainer also can widely use, not only for technical college but also for higher educational such as university and lower educational such as primary and secondary school especially technical and vocational school.

Nowadays, sensors are one of the important electronic devices which has a big role in modern era. Without sensor, we can’t see robot and factory with good machine and we also will never know, ASIMO.

• Bukan kacang sebarang kacang Kacang melilit si kayu jati Bukan datang sebarang hajat Datang membawa hajat di hati

• Budak-budak berlari ke padang Luka kaki terpijak duri Berapa tinggi Gunung Ledang Tinggi lagi harapan kami

• Kalau ada sumur di ladang.Bolehlah hamba menumpang mandi,Kalau umur dah tak panjang, Lekas-lekaslah belajar mengaji.