Enhancement type quartz tuning fork encapsulating device

Abstract

The invention relates to an enhancement type quartz tuning fork encapsulating device which comprises a base, a screw and fixing blocks, wherein the base is of a U-shaped structure, a positioning hole is formed in the center of the base, a quartz tuning fork is fixed in the positioning hole, two pins of the quartz tuning fork penetrate through the positioning hole, lower V-shaped grooves are formed in two lateral walls of the U-shaped base, upper V-shaped grooves are formed in the two fixing blocks respectively, the two fixing blocks are placed on the two lateral walls of the base to enable the upper V-shaped grooves to be aligned with the lower V-shaped grooves, two resonating tubes are fixed through the fully-constrained clamping between the upper V-shaped grooves and the lower V-shaped grooves, the quartz tuning fork is made to be located between the two resonating tubes without making contact with the two resonating tubes, and the screw penetrates through the fixing blocks to be fixed on the two lateral walls of the base. According to the device, miniaturization of an encapsulating structure can be achieved, the enhancing effect of the resonating tubes, the sensitivity of the quartz tuning fork and the signal to noise ratio can be improved, and the optimum applicability of the whole structure can be improved.

Description

technical field [0001] The invention relates to a packaging device for an enhanced quartz tuning fork, which belongs to the technical field of packaging. Background technique [0002] At present, there is an urgent need for miniaturized, light-weight, and long-term calibration-free gas sensor monitoring systems in manned space vehicles and large ships. It mainly completes long-term online detection and analysis of various harmful gases in sealed environments such as space stations and underwater cabins. It is of great value to realize the online health monitoring of manned space vehicles. [0003] Quartz crystal is a widely used low-loss piezoelectric material. The quartz tuning fork used in electronic watches as a frequency standard is an oscillating device made using the piezoelectric effect of quartz crystal. The enhanced quartz tuning fork that uses the quartz tuning fork and resonant photoacoustic tube as the photoacoustic cell and microphone is small in size, light in...

AI Technical Summary

Problems solved by technology

[0004] In 2011, Chongqing University’s master’s degree thesis “Research and Exploration of Quartz Enhanced Photoacoustic Spectroscopy Technology” proposed a quartz tuning fork resonant tube bracket. V-shaped grooves are set on both sides of the gap, and the resonance tube is fixed in the V-shaped groove by gluing. This method is easy to cause errors and cannot make the resonance tube achieve the best core alignment effect.

Images