| 摘要 |
PURPOSE:To measure easily and accurately with a simple construction, by providing on a supporting body with a heat-sensitive coloring liquid crystal layer, conductive layer, dark-field layer, etc. CONSTITUTION:Two-conductive layers 10a, 10b, heat-sensitive coloring liquid crystal layer 14, dark-field layer 18 etc. are provided on front and rear surfaces of a supporting body made of a high-molecular weight material sheet stable to heat and lead wire 16, terminal 17, etc. are provided on the layer 10b and an acceptable/rejectable scales 21, 23, etc. are provided also along the layer 10b. When an electric power is supplied from a specimen battery 25 to these layers 10a, 10b via lead 16 and terminal 17, a voltage of the battery 25 is measured by the change of color of the layer 14 corresponding to the temperature rise proportional to an electric current made to flow by resistance-heating through layers 10a, 10b. By these arrangements, an accurate battery voltage can be measured with easily portable simple construction and easy handling. |
