Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1979-05-07
1980-06-17
Myracle, Jerry W.
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
200 6139, 200153N, G01P 1500
Patent
active
042077702
ABSTRACT:
In a preferred embodiment, a device incorporating a change-of-direction slip-clutch magnet unit monitors movement in a changed-direction within a range as small as 0.005 inch responsive to a force of a magnitude as small as an ounce, and the change of direction may be of any of varying direction to be detected. The magnetic unit includes a magnet movable within a small limited range of distance within a window of a support structure, while the magnet is magnetically mounted on a metal rotary disk with a disk of nylon or Teflon mounted permanently and immovably onto the slidable base surface of the magnet which base is magnetically attached to the side face of the rotary disk and slidable on that side face when the magnet is restricted from further movement and the rotary disk concurrently continues to move, such that movement of the magnet from its initial position to its restricted movement imparts magnetic flux to an adjacent reed switch mounted on the support structure to open or close electrical contacts of the reed switch to thereby transmit or break electrical signal to some functional electrical circuitry such as one embodying an alarm or a counter or a memory bank, inverter, one-shot element, gate-control of a gate transistor, or the like.
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