Surgical instrument comprising a signal interference resolution system

1. A surgical instrument assembly, comprising:

a shaft;

an end effector attached to said shaft; and

a sensing system positioned within said shaft, wherein said sensing system is configured to:

detect a parameter of said surgical instrument assembly; and

detect a presence of outside interference that affects the parameter detection of said surgical instrument assembly.

2. The surgical instrument assembly of claim 1 , wherein said sensing system comprises a plurality of Hall effect sensors and a magnet configured to be sensed by said plurality of Hall effect sensors, and wherein said plurality of Hall effect sensors comprises a range of expected output values corresponding to said parameter.

3. The surgical instrument assembly of claim 1 , wherein said sensing system comprises a plurality of Hall effect sensors and a plurality of magnets configured to be sensed by said plurality of Hall effect sensors, and wherein said plurality of Hall effect sensors comprises a range of expected output values corresponding to said parameter.

4. The surgical instrument assembly of claim 1 , further comprising an actuator and a motor to drive said actuator through a stroke, and wherein said parameter comprises a position of said actuator.

5. A surgical instrument system, comprising:

a surgical instrument assembly, comprising:

a shaft;

an end effector attached to said shaft; and

a sensing system positioned within said shaft, wherein said sensing system is configured to:

detect a parameter of said surgical instrument assembly; and

detect a presence of outside interference that affects the parameter detection of said surgical instrument assembly; and

a control circuit configured to:

receive a signal from said sensing system;

determine if said received signal has been altered by outside interference; and

adjust a control program based on said signal having been determined to have been altered by outside interference.

6. The surgical instrument system of claim 4 , wherein the surgical instrument assembly further comprises an actuator and a motor to drive said actuator through a stroke.

7. The surgical instrument system of claim 6 , wherein said parameter comprises a position of said actuator.

8. The surgical instrument system of claim 6 , wherein adjusting said control program comprises slowing a speed at which said motor is to drive said actuator.

9. The surgical instrument system of claim 6 , wherein adjusting said control program comprises adjusting a length of said stroke.

10. The surgical instrument system of claim 6 , wherein adjusting said control program comprises adjusting an amount of current that can be drawn by said motor from a power source.

11. A surgical instrument, comprising:

an end effector;

a shaft extending from said end effector, wherein said shaft comprises a sensing system to:

detect a parameter of said surgical instrument; and

detect outside interference that affects said detected parameter; and

a control circuit to perform a function based on said detected outside interference.

12. The surgical instrument of claim 11 , wherein said function comprises disabling said sensing system.

13. The surgical instrument of claim 11 , wherein said control circuit is further to detect a magnitude of said outside interference.

14. The surgical instrument of claim 13 , wherein said control circuit is further to:

compare the magnitude of said outside interference to a threshold; and

perform said function based on said comparison.

15. The surgical instrument of claim 13 , wherein said control circuit is further to:

determine if the magnitude of said outside interference is constant; and

perform said function based on said determination.

16. The surgical instrument of claim 13 , wherein said sensing system comprises a first sensing system, wherein said shaft further comprises a second sensing system, and wherein said function comprises switching from utilizing said first sensing system to utilizing said second sensing system.

17. The surgical instrument of claim 13 , further comprising an actuator and a motor to drive said actuator through a stroke.

18. The surgical instrument of claim 17 , wherein said function comprises slowing a speed at which said motor is to drive said actuator.

19. The surgical instrument of claim 17 , wherein said function comprises adjusting a length of said stroke.

20. The surgical instrument of claim 17 , wherein said function comprises adjusting an amount of current that can be drawn by said motor from a power source.