Gray code is often used with mechanical ______.

Gray code is often used with mechanical ______.

• A. Encoders
• B. Sensors
• C. Switches
• D. Actuators

Answer: (A)

Gray code is used in position encoding to minimize errors during transitions. When a mechanical encoder moves from one position to the next, Gray code changes only one bit at a time. This single-bit change means that if a read is momentarily imperfect due to noise, bounce, or sampling timing, it’s far less likely to be interpreted as a completely different position. In other words, Gray code provides robust, monotonic stepping for the encoder’s digital output, which is exactly what you want when translating mechanical movement into reliable position information. This is why Gray code is commonly associated with encoders. Other items like sensors, switches, or actuators aren’t inherently configured to benefit from Gray-code transitions in the same way.

Gray code is used in position encoding to minimize errors during transitions. When a mechanical encoder moves from one position to the next, Gray code changes only one bit at a time. This single-bit change means that if a read is momentarily imperfect due to noise, bounce, or sampling timing, it’s far less likely to be interpreted as a completely different position. In other words, Gray code provides robust, monotonic stepping for the encoder’s digital output, which is exactly what you want when translating mechanical movement into reliable position information. This is why Gray code is commonly associated with encoders. Other items like sensors, switches, or actuators aren’t inherently configured to benefit from Gray-code transitions in the same way.