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Microbeam Superharmonic Synchronous Resonance Signal Frequency Doubling Tuning and Amplifying Device

A resonant signal and ultra-harmonic technology, which is used in measuring devices, measuring ultrasonic/sonic/infrasonic waves, and using vibrating fluids, etc., can solve the problems of difficult filtering, low signal-to-noise ratio, and large volume, so as to achieve less measurement interference factors. , the effect of simple structure and high measurement sensitivity

Inactive Publication Date: 2021-06-01
SHANDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the vacuum electronics signal source has problems such as large volume and high driving voltage; the non-linear circuit of semiconductor electronics generates power series signals, and there are problems such as dense intermodulation signals leading to filtering difficulties and low signal-to-noise ratio due to energy dispersion

Method used

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  • Microbeam Superharmonic Synchronous Resonance Signal Frequency Doubling Tuning and Amplifying Device
  • Microbeam Superharmonic Synchronous Resonance Signal Frequency Doubling Tuning and Amplifying Device

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, make further detailed description:

[0015] The main structure of this embodiment includes two parts: an electrostatic excitation vibration device of a cantilever beam, and a superharmonic synchronous resonance frequency multiplication signal tuning device. The electrostatic excitation vibration device is composed of a low-frequency microbeam 1, a low-frequency piezoelectric control block 2, a fixed end 3, an electrostatic driving electrode 4, a base 5, a DC voltage power supply 6, a signal source 7 and wires. The left end of the low-frequency microbeam 1 is fixedly connected to the fixed end 3, the right end is fixedly connected to the low-frequency piezoelectric control block 2, and the low-frequency piezoelectric control block 2 is fixedly connected to the fixed end 3; the electrostatic drive electrode 4 is located at the bottom of the low-frequency microbeam 1 Directly below, fixed on the base 5, the length is shorter ...

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Abstract

The frequency-doubling tuning and amplification device based on the super-harmonic synchronous resonance signal includes two parts: an electrostatic excitation vibration device and a super-harmonic synchronous resonance frequency-doubling signal tuning device. The electrostatic excitation vibration device is composed of a low-frequency micro-beam, a low-frequency piezoelectric control block, a fixed end, an electrostatic driving electrode, a base, a DC voltage power supply, a signal source and wires. The super-harmonic synchronous resonance multiplier signal tuning device is composed of a low-frequency microbeam, a low-frequency piezoelectric control block, a fixed end, a high-frequency piezoelectric control block, a high-frequency microbeam, a signal acquisition sensor, a coupling connection block and a wire. Appropriate low-frequency piezoelectric control voltage and high-frequency piezoelectric control voltage are designed so that the low-frequency microbeams and high-frequency microbeams meet the frequency doubling synchronization conditions, and the dynamic tuning of the frequency doubling signal can be realized, and the frequency of the doubling signal can be changed.

Description

technical field [0001] The patent of the present invention relates to a vibration signal frequency multiplication amplification device, in particular to a microbeam-based superharmonic synchronous resonance signal frequency multiplication tuning amplification device, which belongs to the field of vibration signal generation. Background technique [0002] Vibration signal extraction is widely used in mechanical vibration research, automotive systems, sensors and other fields. In the extraction of vibration signals, how to eliminate the influence of external factors on the signal is the main factor that determines the accuracy of the signal. The frequency doubling technology based on the principle of signal frequency doubling has become one of the main methods of microwave frequency amplification, and the performance research and preparation of its circuits and key components have become the focus of research in recent years. However, vacuum electronics signal sources have pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/06B06B3/00G01H17/00
CPCB06B1/06B06B3/00B06B2201/55G01H17/00
Inventor 刘灿昌周英超李磊
Owner SHANDONG UNIV OF TECH
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