What Is an Electricity Usage Meter?
A coulomb counter is a device designed to measure the amount of electricity passed through a circuit according to Faraday's law.
- Huffman fuel gauge is a
- The name Gauge was invented by John Frederick Daniel and was originally named
- Huffman Fuel Gauge
- The consumed electricity can be determined by measuring the weight of the cathode. Edison uses a fuel gauge as a meter. Because the platinum electrode response rate is too low, Huffman fuel gauges cannot be used to measure current.
- Huffman fuel gauges are often used to demonstrate the principle of stoichiometry, mainly because the volume ratio of hydrogen to oxygen is 2: 1, which illustrates the chemical formula of water H 2 O. However, this result holds only if oxygen and hydrogen gases are assumed to be diatomic molecules. If hydrogen is a monoatomic molecule and oxygen is a diatomic molecule, the gas volume ratio will be 4: 1. The volume ratio of water is the ratio of hydrogen to oxygen. Experiments have shown that this ratio is 2: 1, and this value is measured by the Huffman fuel gauge [1] .