Abstract: Disclosed are a hydrogenation catalyst, a preparation method for same, and applications thereof. Also disclosed is a hydrogenation reaction method employing the hydrogenation catalyst. The hydrogenation catalyst of the present invention comprises a binding agent and an active component. The active component comprises nickel and a group VIB metal element. The binding agent comprises zirconium oxide and aluminum oxide. The catalyst of the present invention has nickel serving as the main active ingredient and is inexpensive. Moreover, the catalyst of the present invention exhibits an increased catalytic activity in a hydrogenation reaction of phenolic compounds and specifically provides an increased low-temperature reaction activity. The catalyst of the present invention is applicable in a continuous production process, thus implementing the continuous production of a hydrogenated bisphenol A product and providing the product with high and stable quality.

Abstract: A non-invasive time domain reflection probe calibration method includes: using different volume ratio of ethanol and deionized water mixed solution to calculate a test target's medium weight coefficient and waveguide length of the non-invasive time domain reflection probes; using different concentrations of NaCl solutions to calibrate a waveguide geometric dimensioning of the non-invasive time domain reflection probes; preparing compacted soil samples with known different moisture contents and densities, and calibrating a correlation parameter of compacted soil samples' dielectric constant and conductivity with moisture content and density. The method not only determines the sensitivity of the test target medium of the non-invasive time domain reflection probes, but also obtains the waveguide length and geometric dimensioning of the probe, and realizes an accurate test of moisture content and density of the soil.