有些半导体金刚石,如Ⅱ_b 型金刚石,具有导电性,因此,可以用来作为热敏元件。半导体,特别是金刚石的导电性,对周围温度特别敏感。因此,使用简单的电气仪器就能测得微小的温度变化。例如,有可能测得温度小至0.002℃的变化。由于金刚石具有机械强度高、化学隋性和不存在电气性能漂移等特点,所以近来已使它成为某些热敏电阻的理想材料。例如金刚石热敏电阻已在医学上用来测定 Some semiconductor diamonds, such as type II_b diamond, are electrically conductive and therefore can be used as thermal sensors. The conductivity of semiconductors, especially diamond, is particularly sensitive to the ambient temperature. Therefore, the use of simple electrical instruments can measure small temperature changes. For example, it is possible to measure changes in temperature as small as 0.002 ° C. Due to its high mechanical strength, chemical inertia and absence of electrical property drift, diamond has recently become the ideal material for some thermistors. For example, diamond thermistors have been used medically to determine