| 摘要 |
<p>PURPOSE: To obtain a high stability against oscillation by constituting a keyboard of many flat small piece faces continuously arranged on a plate and periodically zero-balancing a pressure sensor and arranging a low-pass filter on the analog side of a computer. CONSTITUTION: Three or four pressure sensors 111 to 114 are inclined and supported, and a keyboard 10 connected to the computer which discriminates geometrical correspondence at each point on the flat plate to which a force is applied consists of many flat small piece faces continuously arranged on the plate, and pressure sensors 111 to 114 have zero points periodically adjusted, and a low-pass filter 15 is arranged on the analog side of the computer 12. Thus, a freely selectable constitution, a high stability against oscillation, and a high position sensitivity are given to the keyboard.</p> |
