Cavity Transducer for Subatomic Mechanical Vibration
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概要
- 論文の詳細を見る
A displacement transducer with a 210 MHz split reentrant cavity has been developed. By converting the deformation of the cavity into frequency modulation of the RF oscillation, the sensitivity of 7×10^<-16> m Hz^<-1/2> is obtained at 145 Hz. By use of this system, the room temperature Brownian motion of an aluminum plate of reduced mass 280 kg is observed 24 dB above the noise background with a time constant of 3 sec. A higher sensitivity is expected for this type of transducer with a superconducting cavity, which would be useful in cryogenic gravitational radiation experiments.
- 1977-09-05
著者
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Tsubono Kimio
Department Of Physics The University Of Tokyo
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Hiramatsu Shigenori
Department Of Physics Faculty Of Science The University Of Tokyo
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Hiramatsu Shigenori
Department Of Physics The University Of Tokyo:(present Address) National Laboratory For High Energy
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Hirakawa Hiromasa
Department Of Physics Faculty Of Science University Of Tokyo
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Hirakawa Hiromasa
Department of Nuclear Engineering, Faculty of Engineernig, Kyushu University
関連論文
- Theory of Antennas for Gravitational Radiation
- Gravitational Radiation Detectors at 145 Hz
- Microwave Spectrum of Formaldehyde : I. K-type Doubling Spectra
- Microwave Zeeman Effect of Formaldehyde
- l-type Doubling Spectra of HCN and DCN
- Microwave Spectra of Formaldehyde -d_1 -d_2
- Transmission Electron Spin Resonance in Copper
- Microwave Skin Effect of Thin Films in a Magnetic Field
- Polarization Measurement of Coherent Bremsstrahlung from a Single Crystal of Silicon. II
- Polarization Measurement of Coherent Bremsstrahlung from a Single Crystal of Silicon. I
- Microwave Spectrum of BrCN and Dependence of Quadrupole Coupling Constant on the Vibrational State
- Microwave Spectrum of Hydrazine
- Electromechanical Tuning of Resonant Antennas for Gravitational Radiation
- Artificial Cold Resistors
- Electronic Cooling of Resistors
- Dynamic Polarization of Deuterons in Individual Sites of Deuterated LMN Crystal
- Rotating Superconductors
- Search for Gravitational Waves
- Search for Background Gravitational Radiation
- Characteristics of Low Frequency Cryogenic Antennas for Gravitational Radiation
- Active Resonant Antennas for Gravitational Radiation
- Dependence of Quadrupole Coupling Constant on the Vibrational State in ICN Molecule
- Low Noise Oscillator Stabilized by Mechanically Modulated Cavity
- Parametric Transducer for Gravitational Radiation Detector
- Cavity Transducer for Subatomic Mechanical Vibration
- l-Type Doubling Spectra of HCN and DCN in the SHF Region
- Microwave Spectra of Formaldehyde and Methylamine in the SHF Region
- Skin Effect in a Magnetic Field
- Laser Interferometer Instrumented in a Disk Antenna for Gravitational Radiation
- Measurement of Gravitational Interaction at Small Distances
- Frequency Modulation Method for a He-Ne Laser Using the Mechanical Resonance of the Laser Cavity
- Direct Measurement of RF Field Using Diode
- Electric Current due to γ-Ray Irradiation
- Theory of the Detection of Background Gravitational Radiation
- Radiation from Moving Charge Train
- Electromagnetic Field of Traveling Charge in Beam Ducts
- Pulse Shortening Effect in Linear Accelerators
- Calibration of Vibration Transducers
- Calibration of Gravitational Radiation Antenna by Dynamic Newton Field
- rf-Transducer for Mechanical Vibration
- Shot-Noise Limited Low-Frequency Intensity Noise of a Nd:YAG Laser
- Dynamic Null Experiment to Test the Law of Gravitation
- Local Field and Gravitational Radiation Experiments
- Dispersion of Gravitational Waves
- Dynamic Polarization of Deuterons in d-LMN Crystal
- The Gravitational Field of a Rotating Bar
- Theory of the Detection of Continuous Gravitational Radiation
- Relationship between Self-Diffusion and Interdiffusion in Gaseous Systems