A slope detector is primarily utilized for detecting what kind of modulation?

A slope detector is designed to specifically detect frequency modulation (FM). This type of modulator varies the frequency of the carrier signal in relation to the amplitude of the input signal, which is characteristic of FM. A slope detector works by interpreting changes in frequency as variations in the voltage level of the output, thereby enabling effective detection of the modulated signal.

The operation of the slope detector relies on the relationship between frequency variations and the slope of the output waveform; as the frequency of the modulated signal changes, it produces corresponding changes in the output that can be interpreted as different amplitude levels. Unlike other forms of modulation, such as amplitude modulation, phase modulation, or pulse-code modulation, which rely on differing principles for signal detection and demodulation, frequency modulation specifically embraces this approach. Thus, the ability of the slope detector to convert frequency changes into voltage changes makes it especially suited for FM applications.