| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for measuring ion concentration which can surely adhere even to a minute and dented part, e.g. a tooth pit or the like and can surely measure the ion concentration of the part. SOLUTION: The ion concentration-measuring device is constituted of a sensor part 3 having an ISFET 8 formed to a leading end of a supporting member, and a display part 4 for processing signals from the sensor part 3 and displaying measured results. The ISFET 8 is provided with an ion response part 5 set to a spherical or curved semiconductor surface 7a. |
