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    • 5. 发明专利
    • INDICATING DEVICE
    • JPH04255476A
    • 1992-09-10
    • JP1440691
    • 1991-02-05
    • SEIKO EPSON CORP
    • MIYAZAWA OSAMU
    • G01D7/00G01D13/00G01R1/14H01L41/09H02N2/00
    • PURPOSE:To miniaturize and thin it by shifting an indicating member, which contacts by friction with a panel, by the oscillation displacement in plane direction of the panel, which performs flexural oscillation, and indicating physical quantity. CONSTITUTION:A control circuit 101 outputs a step signal b, which controls the number of shifting steps of an indicating member 14, and an up/down signal a, which changes over the shifting in forward and reverse direction. A dividing circuit 105 and a shift resistor 104 outputs signals c, d, e, and f. The dividing circuit 105 becomes a 1/6 dividing circuit in case of oscillating a panel 3 with 2/lambda and indicating it by 12 division. An oscillating circuit 102 outputs the frequency waves g in the vicinity of the resonance frequency of the panel 3 to which an oscillator 1 is annexed, and modulates with signals d, e, and f together with that inverse waveform, and applies driving waves h, i, and j to the oscillator 1 through a buffer 107. The driving waves i, j, and k are waves, whose phases change by 180 deg. synchronizing with step signal b, and drive a resonance element 2 together with each inverse wave, and oscillates while changing the node position of the standing wave of 2/lambda.