| 摘要 |
A physical sensor having a pressure sensing layer having such property that electrical resistance is changed by application of a stress, and electrical insulating layers which are integrally formed on opposite two surfaces of the pressure sensing layer, respectively. The pressure sensing layer comprises a matrix comprising glass, and an electrically conductive particle having electrical conductivity and dispersed in the matrix. Preferably, the electrically conductive particle comprises RuO<SUB>2</SUB>, and a thickness of the pressure sensing layer is 1 mum to 200 mum. It is preferable that one pair of electrodes are disposed on the pressure sensing layer.
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