Apparatus of Measuring Liquid Conductivity for Electromagnetism Physics Lab

This Apparatus of Measuring Liquid Conductivity for Electromagnetism Physics Lab is designed for studying the electrical conductivity of liquids and the operating principles of non-contact conductivity sensing technology. The apparatus employs a mutual-inductive conductivity sensor that utilizes electromagnetic induction and transformer principles to measure liquid conductivity without direct electrical contact. By eliminating electrode polarization effects, the system provides stable, accurate, and repeatable conductivity measurements. The apparatus offers an effective platform for exploring conductivity phenomena, sensor calibration techniques, electrolyte behavior, and electromagnetic induction principles in physics and engineering laboratories.

Physics Lab Experiments from Atico Exports.

Experimental Principle and Content

• Study the Operating Principle of a Mutual-Inductive Conductivity Sensor
• Investigate the Relationship Between Output Voltage and Liquid Conductivity
• Demonstrate the Application of Faraday’s Law of Electromagnetic Induction
• Study Transformer Principles in Conductivity Measurement Systems
• Calibrate the Conductivity Sensor Using Precision Standard Resistors
• Measure the Conductivity of Saturated Saline Solutions
• Analyze the Conductivity Characteristics of Electrolyte Solutions
• Determine the Relationship Between Conductivity and Temperature (Optional)

Educational Objectives

• Understand the Principles of Liquid Conductivity Measurement
• Learn the Operation of Non-Contact Conductivity Sensors
• Study Electromagnetic Induction and Transformer Action
• Explore the Relationship Between Conductivity and Ionic Concentration
• Develop Practical Skills in Sensor Calibration and Measurement
• Gain Experience in Experimental Data Collection and Analysis

Experimental Power Supply :

• AC Sine Wave Output
• Output Voltage: 1.700–1.900 V
• Continuously Adjustable
• Frequency: 2500 Hz

Digital AC Voltmeter :

• Measuring Range: 0–1.999 V
• Resolution: 0.001 V

Conductivity Sensor :

• Mutual-Inductive Conductivity Sensor
• Two Inductive Coils
• High-Permeability Alloy Cores
• Non-Contact Measurement Principle

Precision Standard Resistors :

• Resistance Values: 0.1 Ω and 0.9 Ω
• Quantity: 9 Pieces Each
• Accuracy: 0.01%

Power Consumption :

• Less Than 50 W

Standard Supply

• Main Electric Unit × 1
• Sensor Assembly × 1 Set
• 1000 mL Measuring Cup × 1
• Connection Wires × 8
• Power Cord × 1
• Instruction Manual × 1

• Rich Physical Concepts and Applications
• Innovative Experimental Techniques
• Comprehensive Hands-On Training
• Accurate and Reliable Conductivity Measurements