日本胜田市水户技研公司研制成一种非接触式测厚装置，它不需与被测物表面接触就可以测出微米数量级的氧化层、涂料层的厚度。该装置是在原有的一台兼备电磁式、高频式的双重显示型测厚器上组装了属于流体测量的气压测微计而制成的。双重显示型测厚器可以进行高精度的测量，但 Japan Kodomo Mito developed a non-contact thickness measurement technology research device, which does not require contact with the surface of the measured object can be measured microns oxide and coating thickness. The device is made of a piezometer micrometer which is a kind of fluid measurement and is assembled on an original electromagnetic dual-display type high-frequency thickness gauge. Dual Display Thickness Gauges allow high-precision measurements, however