Patent ID: 11906329
Assignee: OCTAVA ENGINEERING, LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A testing apparatus for encoders, comprising:
a signal conditioning circuit board that receives an encoder signal; and
a central processing unit in communication with the signal condition circuit board, the central processing unit configured to:
check for faulty amplitude by measuring a high state amplitude and a low state amplitude of the encoder signal, and comparing the high state signal amplitude and the low state signal amplitude to a predefined amplitude range;
check for signal symmetry by measuring a duty cycle of the encoder signal, and continually comparing an ON time and an OFF time of the signal to determine if a ratio of the ON time to the OFF time falls within a predefined symmetry threshold;
check for signal offset by comparing a phase angle of the encoder signal with that of a complementary signal, and determine if a phase difference of the signals falls within a predefined offset threshold; and
check for signal transmission rate by measuring a rate at which the encoder signal is received, and comparing the measured rate to a predefined rate threshold.