8 Galvanostat Manufacturers in 2023
This section provides an overview for galvanostats as well as their applications and principles. Also, please take a look at the list of 8 galvanostat manufacturers and their company rankings.
Table of Contents
What Is a Galvanostat?
A galvanostat is a device in electrochemistry. This device applies a voltage to a sample to induce a chemical reaction or to detect a change in a physical quantity caused by a chemical reaction. A galvanostat is commonly used in combination with a potentiostat, which is also a measurement device in electrochemistry.
These two devices control a cell containing three types of electrodes: a sample electrode, a counter electrode, and a reference electrode. Potentiostats and galvanostats control different things, the former controls voltage and the latter controls current.
Uses of Galvanostats
Galvanostats are used in chronopotentiometry and battery discharge testing.
- Chronopotentiometry
This is a method of measuring data by tracking changes in electric potential over time. Typically, a constant current is applied to the sample electrode and parameters related to electrochemical reactions are obtained with no flow between the sample electrode and the electrolyte. The parameters obtained include the concentration of substances involved in the redox reaction and the diffusion coefficient. Platinum, which is difficult to dissolve into ions, is used as the electrode for this measurement because it deals with the redox reaction of the components present in the electrolyte. - Battery Discharge
There are primary and secondary batteries. Primary batteries are used-up batteries and can only be discharged. Secondary batteries, on the other hand, can be discharged and recharged, and can be used repeatedly. A galvanostat is used to evaluate discharge and recharge performance. Lithium-ion batteries are examples of rechargeable batteries. Lithium-ion batteries are used in smartphones and hybrid vehicles.
Principle of Galvanostats
Galvanostats requires a signal transmitter and a PC as well as the object to be measured. A frequency response analyzer (FRA) is used for the signal generator, which adds a sine curve with a constant frequency, and the sine curve output from the FRA is input to the galvanostats, creating a voltage. The voltage generated in the galvanostats causes a current to flow through the object being measured, and the response signal emitted from the sample is input to the galvanostats.
The signal input to the galvanostats are converted to a wave and input to the FRA. At this time, a sin(ω) wave is generated whose phase is shifted by ω(omega) from the input sin wave. The sin(ω) wave is fourier transformed in the FRA and only the components of the measurement frequency are extracted. Finally, the data extracted by the fourier transform is sent to a PC. By monitoring these values, it is possible to quantitatively evaluate the parameters.
List of 8 Galvanostat Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- Germany
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Metrohm
Galvanostats
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Lambda Photometrics Ltd.
Galvanostats
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INTERCOVAMEX
Galvanostats
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AlphaOmega-Electronics
Galvanostats
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Arbin Instruments
Galvanostats
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Phadke Instruments
Galvanostats
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Amel Electrochemistry
Galvanostats
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Galvanostat Manufacturer Ranking
*Including some distributors, etc.Number of Employees
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