Hyundai Motor Company

Korea Advanced Institute of Science and Technology

Kwanhum Park

Young-Ho Cho

KwyRo Lee

Byung Man Kwak

Youngho Gho

Jeungsang Go

Byungman Kwak

A symmetrical proof-mass accelerometer with a self-diagnosis capability and its fabrication method are disclosed. The accelerometer has symmetrical mass distribution with respect to the plane of the cantilever beam with an offset between upper and lower masses, so as to minimize cross-axis sensitivity and facilitate self-diagnostic resistor installation. This accelerometer can be applied to automobile electronics systems, consumer electronics, and industrial electrical measurement systems, in which the measurements of displacement, velocity, vibration, acceleration, angular acceleration and their changes are required.

Self-diagnostic accelerometer with symmetric proof-mass and its

A threshold microswitch includes a movable electrode, realizing an initial deflection by a difference in residual stresses; an upper electrode, provided at a fixed distance from the movable electrode; and a support mechanism, including a movable electrode support portion which supports both ends of the movable electrode such that a snap-through buckling phenomenon can be used when the movable electrode receives a threshold load. An upper electrode support portion supports the upper electrode such that switching with the movable electrode is realized when the same undergoes snap-through buckling.

Threshold microswitch and a manufacturing method thereof

A symmetrical proof-mass accelerometer with a self-diagnosis capability and its fabrication method are disclosed. The accelerometer has symmetrical mass distribution with respect to the plane of the cantilever beam with an offset between upper and lower masses, so as to minimize cross-axis sensitivity and facilitate self-diagnostic resistor installation. This accelerometer can be applied to automobile electronics systems, consumer electronics, and industrial electrical measurement systems, which require measurements of displacement, velocity, vibration, acceleration, angular acceleration and their changes.

Growing community of inventors

Kyungsangnam-do, South Korea

Kwanhum Park