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Pen-type quartz crystal oscillation detection device

A quartz crystal oscillator and detection device technology, applied in the direction of using material absorption and weighing, can solve the problems of inapplicability and limit the effective realization and popularization of quartz crystal oscillator sensors, and achieve the effects of simple structure, wide applicability and reasonable design

Active Publication Date: 2013-03-20
崔学晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of this chip support system has limitations and cannot be applied to many places such as on-site online real-time monitoring.
The hysteresis of chip support system design technology limits the effective implementation and application of quartz crystal oscillator sensors

Method used

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  • Pen-type quartz crystal oscillation detection device
  • Pen-type quartz crystal oscillation detection device

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing.

[0010] As shown in the figure, a pen-type quartz crystal oscillator detection device is composed of a sensor chip 8, a sleeve 6, a core 3, a wire 1, a wire sheath 2, an electrode lead 4, and a spring electrode 5. The casing 6 and the core body 3 are made of polymer materials. The two electrode contacts of the sensor chip 8 are set on the same surface and the contact surface faces the sleeve, and are fixed to the bottom of the sleeve 6 by bonding. , the wire sheath 2 plays the role of fastening the wire, and the upper periphery of the core body 3 is provided with a step, and the part below the step is matched with the inner diameter of the sleeve 6 and inserted into the sleeve 6 to be positioned at the step. Two installation holes symmetrical to the central axis are arranged at the near peripheral edge of the core body, and spring electrodes 5 and electrode leads 4 are inst...

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PUM

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Abstract

The invention discloses a pen-type quartz crystal oscillation detection device. The pen-type quartz crystal oscillation detection device is used for detection of trace substances in a solution and comprises a sensor chip, a cannula, a core, a lead, a lead sheath, an electrode lead and a spring electrode. The sensor chip is fixed to the bottom of the cannula. An upper part of the core is a hollow tube. The periphery of the upper part of the core is provided with a step. A core part below the step is inserted into the cannula and is positioned at the step. A middle-lower part of the core is provided with a thread hole and two installation holes. The spring electrode and the electrode lead are installed in the two installation holes. The electrode lead passes through the thread hole, is connected to the lead and is led out from the lead sheath. Two electrode contacts on the spring electrode and the sensor chip are in an elastic contact connection relationship. The pen-type quartz crystal oscillation detection device can be inserted into a sample solution needing to be detected conveniently and carry out detection, and has wide applicability.

Description

technical field [0001] The invention relates to a pen-type quartz crystal oscillator detection device, which is used for detection of trace substances in a solution and belongs to the field of scientific detection instruments. technical background [0002] Quartz crystal microbalance (QCM) is a new type of sensor measurement technology. It uses the principle that the frequency change of the quartz oscillator is proportional to the quality change on the crystal surface, and can detect the ng-level mass change on the electrode surface and the solution viscosity, density, and modified film. The change of parameters such as viscoelasticity has the characteristics of high sensitivity and real-time measurement. It can be used as a means to track and monitor changes in microscopic processes online, and carry out exploration and research on microscopic processes and mechanisms of action in the fields of modern chemistry, material science, biology, and medicine. presents good prospec...

Claims

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Application Information

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IPC IPC(8): G01N5/02
Inventor 崔学晨封雷王保民叶献峰崔实张利群孙宪光
Owner 崔学晨