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Oscillator characteristics testing method

A characteristic test, vibrator technology, applied in electronic circuit testing, vibration measurement, resonance frequency measurement, etc., can solve the problems of reduced productivity, prolonged evaporation time, abnormal rise in crystal impedance, evaporation metal peeling, etc., to achieve high-speed measurement, low cost and the measured effect

Inactive Publication Date: 2003-09-17
HUMO LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In addition, if the frequency is greatly adjusted by increasing the amount of vapor deposition during metal vapor deposition, in addition to prolonging the vapor deposition time and reducing productivity, there is also the possibility of an abnormal increase in crystal impedance or an aging change due to peeling of the vapor deposited metal.

Method used

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Embodiment Construction

[0037] Embodiment of the invention

[0038] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

[0039] figure 1 Fig. 2 is a perspective view showing an example of the vibrator characteristic test method according to the first and second aspects of the present invention, and Fig. 2 is a view for explaining its operation.

[0040] It consists of network analyzer 6, upper electrode 2, lower electrode 3, vibrator piece 4, bushing 5 and personal computer 1. The personal computer 1 is connected to the network analyzer 6 with the GP-IB interface cable 9, and can completely store, display, and compare the measurement results of the network analyzer 6.

[0041] The upper electrode 2 can be moved up and down by an up and down device not shown in the figure. In addition, the vibrator piece 4 is placed in the bushing 5, and the bushing 5 is moved by a horizontal moving device not shown in the figure, so that the vibrator pi...

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Abstract

The present invention provides a vibrator test method, which can effectively detect the vibration characteristics of the vibrator piece without adjusting the troublesome and expensive optical inspection device and image processing device when testing the vibration characteristics of the vibrator piece. Cuts, blemishes. It consists of network analyzer 6, upper electrode 2, lower electrode 3, vibrator piece 4, bushing 5 and personal computer 1. The personal computer 1 is connected to the network analyzer 6 with the GP-IB interface cable 9, and can completely store, display, and compare the measurement results of the network analyzer 6. The upper electrode 2 can be moved up and down by an up and down device not shown in the figure. In addition, the vibrator piece 4 is placed in the bushing 5, and the bushing 5 is moved by a horizontal moving device not shown in the figure, so that the vibrator piece can be moved to the bottom of the upper electrode 2, the qualified product classification part 7 or the unqualified product classification Part 8.

Description

[0001] The technical field of the invention [0002] The present invention relates to a vibration characteristic test method of a crystal vibrator or a ceramic vibrator. Background technique [0003] Crystal resonators or ceramic resonators are generally manufactured as follows. [0004] First, a crystal or ceramic piece (hereinafter referred to as "oscillator piece") is cut out from the crystal or processed such as sintering, and then ground to a predetermined external dimension and thickness. [0005] Next, metal is vapor-deposited on the vibrator piece to form electrodes, and after adjusting the deposition amount and fine-tuning the vibration frequency of the vibrator, it is accommodated in a predetermined package to complete the process. [0006] If there are cracks, defects, damage, etc. on the vibrator piece before metal evaporation, when the electric power applied to the manufactured vibrator changes, abnormal changes in crystal impedance or frequency fluctuations may ...

Claims

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Application Information

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IPC IPC(8): H03H3/02G01H3/00G01R31/28
CPCG01H3/005G01R31/2824G01H11/00
Inventor 野中智
Owner HUMO LAB