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Measurement and Control Systems Concepts

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Questions and Answers

Which component is specifically designed to measure flow rate in a pipeline?

Tachometer
Venturi Meter (correct)
Potentiometer
Rheostat

What is the main purpose of a PID controller in control systems?

Automatically measure pressure
Store data for long-term analysis
Provide analog-to-digital signal conversion
Reduce error, improve stability, and optimize response (correct)

Which type of control system incorporates feedback to improve performance?

Closed-Loop System (correct)
Open-Loop System
Feedforward System
Sequential System

Which sensor is primarily used to measure light intensity?

<p>LDR (B)</p> Signup and view all the answers

What does the term 'steady-state error' refer to in control systems?

<p>Difference between input and output in steady state (A)</p> Signup and view all the answers

Flashcards

Transducer

A device that converts one form of energy into another, usually for measurement or control purposes. Think of it as a translator between the physical world and electronic signals.

Closed-Loop Control System

A type of control system where the output is fed back to the input, allowing for adjustments and corrections to maintain a desired state.

Bourdon Tube

A device that measures pressure using the deflection of a curved tube. It's like a balloon that expands when pressure increases.

PID Controller

A controller that uses proportional, integral, and derivative terms to adjust the output and minimize the difference between the desired and actual values. It's like a highly precise regulator.

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Venturi Meter

A device that measures the flow rate of a fluid by measuring the pressure difference across a constriction. Imagine a water pipe where the flow is faster through a narrower section.

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Study Notes

Temperature Measurement

Thermocouple is used to measure temperature

Transducer Function

Transducers convert one form of energy into another

Pressure Measurement

Bourdon tube is used to measure pressure

Control Systems

Closed-loop systems use feedback

PID Controller Function

PID controllers reduce error, improve stability, and optimize response

Flow Rate Measurement

Venturi meter measures flow rate in pipelines

Programmable Logic Controller (PLC) Function

PLCs provide programmable control of processes in automation

Displacement Measurement

Linear Variable Differential Transformer (LVDT) is used to measure displacement

Steady-State Error

Steady-state error is the difference between input and output in steady state

Light Intensity Measurement

Light Dependent Resistor (LDR) measures light intensity

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