54 results about "Gravitational wave" patented technology

The invention provides a high-precision double star laser interference dynamic distance measuring ground simulation device which at least comprises a vibration-isolation system, a vacuum system, a light source system, an interferometer, a first horizontal moving system, a second horizontal moving system, a phase detection system and a data analyzing system. The vibration-isolation system is used for isolating and filtering outside vibration noise and reducing the vibration noise of a system. The vacuum system is used for reducing thermal noise brought by temperature fluctuation of the system. The light source system is used for providing two laser beams which are high in stability and high in frequency stabilization. The interferometer is used for generating three paths of heterodyning interference signals which have the identical arm length and simulating satellite orbit dissociating motion information and scientific signal information caused by gravitational waves or a gravitational field or the like. The first horizontal moving system is used for simulating scientific signals caused by gravitational waves or a gravitational field or the like. The second horizontal moving system is used for simulating satellite orbit dissociating signals. The phase detection system is used for carrying out phase detection on interference signals, collecting phase information and carrying out inversion displacement. The data analyzing system is used for estimating dynamic distance measuring precision of an interfering system and extracting scientific signals from mixed signals. The high-precision double star laser interference dynamic distance measuring ground simulation device can achieve ground simulation of high-precision double star laser interference dynamic distance measuring.

A gravitational wave generating device comprising an energizing means such as magnetrons, which act upon energizable elements such as film bulk acoustic resonators or FBARs. A computer that controls the magnetrons' phase. A gravitational wave generation device that exhibits directivity and forms a gravitational-wave beam. The utilization of a medium in which the gravitational wave speed is reduced in order to effect refraction of the gravitational wave and be a gravitational wave lens. A gravitational wave generator device that can be directed in order to propel an object by its momentum or by changing the gravitational field nearby the object to urge it in a preferred direction and be a propulsion means.

A micromovement measuring device records creeping and dynamic infraprocesses both of natural and artificial origin, including seismic processes or infrasound and gravitational waves. The device has a sensitivity for measuring in a wide dynamic range. The device includes a measuring element, a sensitive element, a membrane, a signal conditioner, a fixing electromagnet, and a pulling electromagnet. The pulling electromagnet is located on the membrane which increases the range of the measurable movements. A hermetic housing prevents the formation of oxides or similar films at the working surfaces of the measuring and sensitive elements. A method of converting movement to electric signals is performed by the device, which takes an electronic field emission current to be a characteristic of quantization, and so movements in the range of Angstroms may be recorded.

The invention discloses a precise optical interference measurement device and a technical improvement route. A TRIZ (Theory of the Solution of Inventive Problems) and an optical interference principle are utilized in a device design. A laser device of the device produces a coherent light beam to pass through wedge semi-transparent semi-reflecting glass to be divided into two coherent light beams; one coherent light beam passes through four reflecting mirrors to increase the effective length of an interference arm and improve the measurement accuracy; the other coherent light beam passes through a phase modulator to produce a phase difference; the phase modulator is associated with the physical quantity to be tested; the two coherent light beams pass through the wedge semi-transparent semi-reflecting glass to output two interference light beams; interference is caused by the two light beams which are gathered together due to the phase difference and output light intensity changes along with transformation of the phase difference; and accordingly a value of the phase difference can be obtained through measurement of the light intensity and then a value of the physical quantity to be tested can be obtained. The optical interference measurement device design and a method thereof based on the TRIZ have important application prospects in fields of gravitational wave detection, micro-nano displacement measurement, optical fiber gyros, optical fiber sonar detection and the like.

A gravitational wave generating device comprising an energizing means such as a particle or electromagnetic beam, which act upon energizable elements such as molecules, atoms, electrons, nuclei or nuclear particles in order to create nuclear reactions or collisions, the products of which can move in a single preferred direction with an attendant impulse (jerk or harmonic oscillation) of an ensemble of target nuclei or other energizable elements over a very brief time period. The target nuclei or energizable elements such as electrons or other submicroscopic particles in a superconductor acting in concert generate a gravitational wave. An information-processing device connected to a computer, controls the particle beam's high-frequency, (approximately GHz to THz or higher) pulse rate and the number of particles in each bunch comprising the pulse in order to produce modulated gravitational waves that can carry information. A gravitational wave generation device that exhibits directivity. A gravitational wave detection device that exhibits directivity and can be tuned. The utilization of a medium in which the gravitational wave speed is reduced in order to effect refraction of the gravitational wave and be a gravitational wave lens. A gravitational wave generator device that can be directed in order to propel an object by its momentum or by changing the gravitational field nearby the object to urge it in a preferred direction and be a propulsion means. A gravitational wave telescope that utilizes a source of gravitational waves and a gravitational wave lens to focus an image on an array of detectors.

The invention provides an all-sky atmosphere gravitational wave imager which comprises a fisheye lens, a three-lens light path adjustment lens group, an optical filter, an imaging lens and a scientific CCD (Charge Coupled Device) camera, wherein the three-lens light path adjustment lens group comprises a first lens, a second lens and a third lens, the first lens is a plus lens and is arranged close to the focal plane of the fisheye lens, the second lens which is a plus lens and the third lens which is a minus lens are arranged behind the first lens, and the third lenses are matched with the fisheye lens mutually so that light emitted from the third lens meets the angular requirement of the band width of the optical filter on incident light, then passes through the optical filter, the imaging lens sequentially and finally reaches the scientific CCD camera connected with the imaging lens, and thus, the all-sky atmosphere gravitational wave imager realizes the all-sky 180-degree atmosphere gravitational wave imaging by taking OH and O2 airglow radiation as a tracer. The all-sky atmosphere gravitational wave imager not only can realize higher-accuracy gravitational wave activity observation, but also can reduce cost and size and has concise structure and high accuracy.

The invention discloses a low-thermal-noise high-reflection type optical combined film structure and a preparation method thereof. The low-thermal-noise high-reflection type optical combined film structure is that a ultralow-expansion optical material is used as a substrate; a film coats the substrate, wherein the film is a multi-layer film formed by a sapphire film layer and a diamond layer which are arranged alternatively and combined by bonding or contact blocking. According to the low-thermal-noise high-reflection type optical combined film structure, the sapphire and diamond materials are used as the film coating layers and have extremely low mechanical loss factors, so that the brown thermal noise of the film coating material can be greatly reduced; meanwhile, the sapphire and diamond materials have a large difference in refraction rate, and therefore, high and low film layers can be formed to achieve high reflection rate; the combined film can be applied to high-tech fields such as an optical reference cavity, an optical interference instrument, an ultralow linewidth laser, an optical atomic clock and gravitational wave detection.

The invention discloses a relay method in an optical fiber optical frequency link and a relay station for implementing the method. The method comprises the following steps: using the signal of a previous level optical fiber link as seed light to receive and amplify a part of the seed light and send the seed light to the next level optical fiber link; and the other part of the seed light is reflected to return to the previous level link along the original route, a part of return light of the next level optical fiber link is received to serve as beat frequency to inhibit the noise so as to inhibit the import phase noise in an amplification process. By adoption of the relay method disclosed by the invention, the problem of controlling the width of a band in a phase noise inhibition process can be well solved, and the relay method has the advantages of adaptability to complex links, simple structure, low cost, and so on. The relay station of the optical fiber optical frequency link designed in the invention can be applied to optical atom clock comparison, ultra high precision optical clock signal transmission, optical fiber time frequency system networking, gravitational wave detection and other high-tech fields.

A deep space gravitational wave detection apparatus based on repeating type femtosecond pulses is disclosed and comprise a measuring end, a number one femtosecond phase lock repeater, a number two femtosecond phase lock repeater, a number three femtosecond phase lock repeater, a number four femtosecond phase lock repeater, a number five femtosecond phase lock repeater and a number six femtosecond phase lock repeater. The deep space gravitational wave detection apparatus can be used for conducting equal arm length differential detection on gravitational wave signals, detection sensitivity can reach a sub-nanometer magnitude, each of two measuring arms adopts a pulse time domain locking type repeating measurement structure, the luminous power of measuring light is amplified by cascading three femtosecond phase lock repeaters, deep space gravitational wave detection on the scale of the outer solar system, the measuring end is independent of the six femtosecond phase lock repeaters, and problems of real time communication between satellites that are far apart and high-precision clock synchronization can be addressed.

The gravitational wave detection device belongs to the field of optical measurement technology, which not only utilizes the resonance effect but also utilizes the extended optical path to amplify the gravitational wave signal, so as to improve the sensitivity of detecting gravitational wave. In the present invention, the two resonant rods are independently hung horizontally through the center by strings, and their central axes are perpendicular to each other; corresponding to the two resonant rods, the optical fiber is divided into two sections, and each section is folded into N subsections, 1,000≤N ≤1,000,000, and wound along the axis of the resonant rod and fixed on the resonant rod, or placed in the resonant rod along the axis of the resonant rod, the ends of the optical fibers on the two resonant rods are connected by optical devices, and the entire optical fiber forms a closed loop. The resonant rod and the optical fiber on it act as a resonant mass, and use the resonance effect to amplify the gravitational wave signal by Q times; at the same time, the optical fiber folding is used to greatly increase the optical path of the optical signal, and the response of the resonant rod to the gravitational wave is accumulated to enhance the detection of gravitational waves. ability to further amplify the gravitational wave signal and greatly improve the detection sensitivity.