sähkömittausketju

A sähkömittausketju, or electrical measurement chain, refers to the entire system used to measure an electrical quantity. This chain begins with a sensor that detects the physical phenomenon and converts it into an electrical signal. For example, a voltage probe or current clamp acts as the initial sensor.

The electrical signal from the sensor is often not directly usable and may require conditioning. This conditioning stage can involve amplification, filtering to remove unwanted noise, or linearization to compensate for non-linear sensor responses. Signal conditioning is crucial for ensuring the accuracy and reliability of the measurement.

Following conditioning, the analog signal is typically converted into a digital format for processing and storage by an analog-to-digital converter (ADC). This digital data can then be analyzed by a microcontroller, a computer, or a dedicated data acquisition system.

The final stage involves the presentation or recording of the measurement results. This could be a simple digital display showing a voltage reading, a graph on a screen illustrating a changing current over time, or data logged to a file for later analysis. The entire sähkömittausketju is designed to accurately and reliably translate a physical electrical property into a meaningful and usable output.