Podcast
Questions and Answers
What type of electrodes are commonly used in common laboratory conductivity meters?
What type of electrodes are commonly used in common laboratory conductivity meters?
- Cubical electrodes
- Cylindrical electrodes (correct)
- Conical electrodes
- Spherical electrodes
In common laboratory conductivity meters, what method is often used to apply an alternating current to the outer pair of electrodes?
In common laboratory conductivity meters, what method is often used to apply an alternating current to the outer pair of electrodes?
- Potentiometric method (correct)
- Electrolytic method
- Inductive method
- Ohm's law method
What is the advantage of employing an inductive method in industrial conductivity probes?
What is the advantage of employing an inductive method in industrial conductivity probes?
- Ease of calibration using electrolytes
- Accuracy in determining conductivity
- Fluid wets the electrical parts of the sensor
- Fluid does not wet the electrical parts of the sensor (correct)
How are inductively-coupled coils utilized in the industrial conductivity probes?
How are inductively-coupled coils utilized in the industrial conductivity probes?
What materials are four-electrode conductivity sensors made from?
What materials are four-electrode conductivity sensors made from?
Study Notes
Electrodes in Laboratory Conductivity Meters
- Four-electrode sensors are commonly used in common laboratory conductivity meters.
Applying Alternating Current in Laboratory Conductivity Meters
- An alternating current is often applied to the outer pair of electrodes using a four-electrode method.
Advantage of Inductive Method in Industrial Conductivity Probes
- The advantage of employing an inductive method in industrial conductivity probes is that it eliminates polarization effects.
Inductively-Coupled Coils in Industrial Conductivity Probes
- Inductively-coupled coils are utilized in industrial conductivity probes to measure conductivity.
Materials Used in Four-Electrode Conductivity Sensors
- Four-electrode conductivity sensors are made from a variety of materials, including titanium, stainless steel, and platinum.
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Description
Test your knowledge about electrical conductivity meters and their applications in hydroponics, aquaculture, and freshwater systems. Learn about the principle behind common laboratory conductivity meters employing a potentiometric method and four electrodes.