Quartz crystal microbalance detecting device

一种石英晶体微天平检测装置

Abstract

The invention discloses a quartz crystal microbalance detecting device which comprises a base, a sealing cover, a silicon gel gasket and a quartz wafer, wherein the quartz wafer is positioned inside a base groove; a quartz wafer groove is machined in the center of the bottom end of the quartz wafer; an upper electrode and a lower electrode are respectively arranged on the upper and lower sides of the quartz wafer groove; the upper and lower sides of the silicon gel gasket are respectively connected with the sealing cover and the base; the left and right ends of the quartz wafer groove are connected with the silicon gel gasket; a sample feeding port and a sample discharging port are both communicated with a central long through hole; the upper electrode is led out by an upper spring needle probe which penetrates through a third silicon gel through hole and an upper probe through hole in sequence; and the lower electrode is led out by a lower spring needle probe which penetrates through a lower probe through hole. The invention provides the quartz crystal microbalance detecting device; a flow cell in the device can be recycled with simple structure and stable performance; and moreover, the high-frequency miniaturization of a quartz crystal microbalance is realized, the mass-frequency sensitivity of the quartz crystal microbalance is improved, detection on small molecules or trace substances can be accomplished, and the minimum sample quantity of a desired object to be detected is small.
本发明公开了一种石英晶体微天平检测装置,包括底座、封盖、硅胶垫片和石英晶片;石英晶片位于底座凹槽内,其底端中心加工有上下两面分别设有上电极和下电极的石英晶片凹槽;硅胶垫片上下两面分别与封盖和底座相连,且石英晶片凹槽左右两端与硅胶垫片相连;进样口和出样口均与中心长通孔相连通;上电极由上弹簧针探头依次穿过第三硅胶通孔和上探头通孔引出,下电极由下弹簧针探头穿过下探头通孔引出。本发明提供了一种石英晶体微天平检测装置,该装置中的流通池可以重复利用,结构简单,且性能稳定,还实现了对石英晶体微天平的高频小型化,提高了其质量-频率灵敏度,可以完成对小分子或痕量物质的检测,且所需待检测物的最小样品量小。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-101398399-AApril 01, 2009中国科学院大连化学物理研究所一种石英晶体谐振器及其制备和应用
    CN-101482530-AJuly 15, 2009上海博物馆;华东理工大学一种压电晶体气体传感器及其制备方法
    CN-202033263-UNovember 09, 2011中国科学院大连化学物理研究所Miniature detection cell for quartz crystal microbalance
    WO-2006031198-A1March 23, 2006Agency For Science, Technology And Research, Max-Planck-Gesellschaft zur Förderung der Wissenschaften e. V.Resonance au plasmon superficiel et detecteur de microequilibre a cristal de quartz

NO-Patent Citations (0)

    Title

Cited By (9)

    Publication numberPublication dateAssigneeTitle
    CN-103471950-ADecember 25, 2013东南大学Multichannel quartz crystal microbalance detection device
    CN-103558112-AFebruary 05, 2014东南大学Detection device for quartz crystal microbalance
    CN-103558112-BFebruary 03, 2016东南大学石英晶体微天平检测装置
    CN-104198320-ADecember 10, 2014北京至感科技有限公司一种手持式快速反应铁量仪
    CN-104198320-BAugust 24, 2016北京至感传感器技术研究院有限公司一种手持式快速反应铁量仪
    CN-104198323-ADecember 10, 2014北京至感科技有限公司Highly sensitive acid sensor
    CN-104232480-ADecember 24, 2014山东师范大学一种多通道压电监测细胞生长动态过程的装置与方法
    CN-104792649-AJuly 22, 2015谭亮, 罗弋群, 刘同�Single-side touch liquid type quartz crystal microbalance detector
    CN-104807717-AJuly 29, 2015电子科技大学QCM (quartz crystal microbalance) sensor with high-quality factor and high-quality sensitivity