Apparatuses and methods for measuring saddle linkage position of a motor grader

A grader comprising:

• a chassis;
• a saddle linkage supported for movement relative to the chassis that includes a mount movably coupled to the chassis, first and second arms each movably coupled to the mount, and a crossbar movably coupled to each of the first and second arms, wherein the mount has a lock pin aperture, each of the first and second arms has a locking hole, and the crossbar has a plurality of locking holes, and wherein the lock pin aperture may be aligned with one locking hole of the first arm, the second arm, or the crossbar to position the saddle linkage in use of the grader;
• a work implement assembly movably coupled to the chassis and the saddle linkage, wherein the work implement assembly includes at least one component that is configured to grade a surface in use of the grader;
• and
• a motion measurement system coupled to the saddle linkage that is configured to measure movement or position of one or more components of the grader in use thereof, wherein the motion measurement system includes at least one sensor mounted to the mount in close proximity to the lock pin aperture and at least one indicator mounted in close proximity to at least one of the locking holes, wherein the at least one sensor is configured to sense the at least one indicator and provide sensor input indicative of one or more characteristics of the at least one indicator, and wherein the motion measurement system further includes a controller that is coupled to the at least one sensor and configured to receive the sensor input, encode the sensor input based on at least one 3-bit data string, and determine a positional state of the saddle linkage based on the encoded sensor input.