Conversion devices are tools or systems that change one form of energy or signal into another. For example, a solar panel converts sunlight into electrical energy, allowing us to harness renewable energy for various applications. These devices are essential in many fields, including electronics, renewable energy, and telecommunications. Another common type of conversion device is a transducer, which transforms physical quantities like temperature or pressure into electrical signals. This process is crucial in industries such as manufacturing and healthcare, where accurate measurements are necessary for monitoring and control. Overall, conversion devices play a vital role in modern technology and everyday life.