Sensor and method for motion measurement of co-existing tilt and horizontal acceleration
First Claim
1. A motion-sensing device for sensing tilt and acceleration when one of tilt, horizontal acceleration, and tilt and horizontal acceleration acting concurrently, influence said device, the device comprising:
- a. a substrate having a top and a bottom;
b. a first tilt sensor fixed to said top of said substrate;
c. a pendulum flexibly coupled to said bottom of said substrate; and
d. a second tilt sensor fixed to said pendulum.
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Abstract
A motion-sensing device for sensing tilt and acceleration when either tilt, horizontal acceleration, or tilt and horizontal acceleration acting concurrently, influence the device, including: a substrate, a first tilt sensor fixed to the top of the substrate; a pendulum flexibly coupled to the bottom of the substrate proximate to the first tilt sensor; and a second tilt sensor fixed to the pendulum. The first and/or second tilt sensors are preferably an accelerometer; a spring-mass system; and/or an arcuate resistive element. The first tilt sensor includes a tilt sensor that measures tilt in a first geometric plane, the pendulum is constrained to move in the first geometric plane, and the second tilt sensor is operable to measure tilt in the first geometric plane. The motion-sensing device or devices coupled to a machine, vehicle, and/or a control system. The substrate may include a portion of the first tilt sensor.
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Citations
20 Claims
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1. A motion-sensing device for sensing tilt and acceleration when one of tilt, horizontal acceleration, and tilt and horizontal acceleration acting concurrently, influence said device, the device comprising:
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a. a substrate having a top and a bottom; b. a first tilt sensor fixed to said top of said substrate; c. a pendulum flexibly coupled to said bottom of said substrate; and d. a second tilt sensor fixed to said pendulum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A motion-sensing device for sensing tilt and acceleration when one of tilt, horizontal acceleration, and tilt and horizontal acceleration acting concurrently, influence said device, the device comprising:
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a. a substrate having a top and a bottom; b. a first tilt sensor fixed to said top of said substrate; c. a pendulum flexibly coupled to said bottom of substrate; and d. a second tilt sensor fixed to said pendulum; and wherein at least one of said first and second tilt sensors comprises at least one of; a. an accelerometer; b. a spring-mass system; and c. an arcuate resistive element. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A motion-sensing device for sensing tilt and acceleration when one of tilt, horizontal acceleration, and tilt and horizontal acceleration acting concurrently, influence said device, the device comprising:
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a. a substrate having a top and a bottom; b. a first tilt sensor fixed to said top of said substrate; c. a pendulum flexibly coupled to said bottom of substrate; and d. a second tilt sensor fixed to said pendulum; and wherein at least one of said first and second tilt sensors comprises at least one of; a. an accelerometer; b. a spring-mass system; and c. an arcuate resistive element, and wherein; a. said first tilt sensor comprises a tilt sensor operable to measure tilt in a first geometric plane; b. said pendulum is constrained to move in said first geometric plane; c. and said second tilt sensor comprises a tilt sensor operable to measure tilt in said first geometric plane. - View Dependent Claims (20)
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Specification