Ampere (Amp) hour meter is a solid state measuring device, a similar concept to that of a water meter, which is used to calculate the amount of electricity charge used by multiplying the flow rate of electrons by the amount of time electrons flow through the wire. This eliminates the need of calibrated shunt leads, which happen to be an expensive and rather a tedious process. The computer controlled ampere hour meter provides a simple and cost effective method of tracking current and time either in ampere-hours or ampere-minutes during plating or anodizing operations, which turns out to be an escapade of sorts. As told, the concept of an amp-hour meter is similar in concept to a water meter, i.e. a water meter determines the amount of water used by calculating the flow rate of the water through a pipe and then multiplying.
Now very much depends of the types and designs of this device, as it may vary from time to time and definitely on the price which is most suitable.
Majority of the devices are based on the structure quite similar to that of an ammeter, an electronic instrument which is used to measure current. But going by this, it will result in quite a simple formation which will be solely giving out the status or measurement of the current being used, then multiply the amount of time (in ours) it is at the level of current. Now it is very important in such a structure to restart the timings every time the current reading changes, moreover for each change in current level one should have the time in hours that corresponds to the time the current was at the specific level. Post all this, multiplying the current and time together for each current level and eventually adding up the sum of these calculations together. This is the number of amp-hours, now that surely is a task in hand. To sum it up anAmp Hour Meter incorporates timing, multiplication and summing circuits in addition to an ammeter circuit.
Different ampere hour meters are designed to measure direct current, the type of current found in battery powered circuits; alternating current, the type of current generated from electric wall sockets; or pulsed currents, the type of current found in data communications wires. This explains how widely and important its use is.