| 摘要 |
A probe 10 comprises a base element 12, formed from an inflexible material and having one or more unitary rigid elongate prong members 18, heating and sensing elements 20 and 22 supported on the base element 12, and means for electrically energising at least the heating element 20. The heating element 20 is formed on the or one prong member 18 so that, when energised, the thermal energy output by the heating element 20 can be sensed by the sensing element 22 to determine at least the thermal conductivity of a substance in which the probe 10 is inserted. The probe also measures heat capacity, thermal diffusivity, hydraulic conductivity and/or water flow rate. |
