Measuring device for LOVE-waveform ultramicro matter mass

Abstract

The invention discloses a measuring device for LOVE-waveform ultramicro matter mass. The measuring device comprises an input interdigital transducer, two same output interdigital transducers, a first electrode of the input interdigital transducer, a second electrode of the input interdigital transducer, first electrodes of the output interdigital transducers, second electrodes of the output interdigital transducers, as well as LOVE-wave guiding layers covering the input interdigital transducer, the output interdigital transducers and a piezoelectric substrate, which are manufactured on the same piezoelectric substrate material; the tail ends of the first electrode of the input interdigital transducer, the second electrode of the input interdigital transducer, the first electrodes of the output interdigital transducers and the second electrodes of the output interdigital transducers respectively extend out of the LOVE-wave guiding layers; and the two output interdigital transducers are respectively and symmetrically arranged at the left side and the right side of the input interdigital transducer, and an area between the input interdigital transducer and the output interdigital transducers is a measured area. The measuring device disclosed by the invention is simple in structure and capable of realizing measurement on matter mass of milligram or below.

Description

technical field [0001] The invention relates to a measuring device for the quality of trace substances, in particular to a measuring device for the quality of trace substances in a LOVE wave type. Background technique [0002] Mass is an indication of how much of a substance is contained in it. By measuring the mass of a substance, not only the amount of a certain substance can be determined, but at the same time, since different substances and elements have relatively fixed densities, by determining the mass of a unit quantity or volume of substance, it is possible to realize the measurement of the substance. identification and identification. With the rapid development of science and technology, human beings' understanding and exploration of the world has entered the category of microscopic substances such as atoms, ions, and DNA from the macroscopic world. Therefore, how to realize the measurement of trace substances is of great significance and value to scientific rese...

AI Technical Summary

Problems solved by technology

At present, there are few devices that use the output characteristics of LOVE wave devices to measure the mass of the material loaded on the surface of the waveguide layer.

Images