16 results about "Ultra sound" patented technology

A process is disclosed for removing sulfides from liquid fossil fuel comprising mixing the liquid fossil fuel with an oxidizer and catalyst to form a multiphase reaction medium and producing a fluid flow of the multiphase reaction medium. Ultra sound may be applied to the multiphase reaction medium to cause oxidation of sulfides in the liquid fossil fuel to sulfones; and extracting the sulfones to yield an organic phase and aqueous phase. The ultra sound is performed by generating vibrations parallel to the fluid flow of the multiphase reaction medium. The organic phase substantially consists of desulfurized fuel.

A system (100) includes a listening device (105) with a processor (110), memory (112), speaker driver (120), and microphone (130) for determining hearing loss. The memory includes processor-executed instructions (155) for carrying out steps including transmitting an ultrasound tone to a user of the listening device (105); measuring length of an ear canal of the user after receiving a reflected ultrasound signal; transmitting an audible sound to the user of the listening device; transmitting an ultrasound tone to the user of the listening device (105) and measuring length of an ear canal of the user after receiving a reflected ultrasound signal; comparing the measurement of the length of the ear canal before and after the audible sound transmission; and if there is no change or minimal change in the length, notifying the user of hearing loss or controlling the listening device to limit sound level.

The ultrasonic vibrator comprises a rear cover plate, an even number of conductive copper sheets, an even number of piezoelectric ceramics, a front cover plate, an amplitude-change pole and a connecting screw rod, connecting threaded holes are formed in the centers of the upper sections of the rear cover plate, the front cover plate and the amplitude-change pole, a nut is arranged at the top of the connecting screw rod, and screw rod connecting external threads are arranged at the front end of the connecting screw rod. The connecting screw rod sequentially penetrates through the connecting threaded holes of the rear cover plate and the front cover plate from top to bottom, downwards extends into the connecting threaded hole of the amplitude-change pole and is in threaded fastening connection with the connecting internal thread through the screw rod connecting external thread; the conductive copper sheets and the piezoelectric ceramics are alternately distributed and arranged on the connecting screw rod in a penetrating manner and are clamped between the rear cover plate and the front cover plate; the front cover plate, the rear cover plate and the amplitude-change pole are all fixedly connected through one screw, the front cover plate metal piece is not prone to breakage during ultrasonic (sound) wave high-speed vibration, the service life is long, the using effect is good, the using cost is low, the using requirement is effectively met, and the industrial pain and difficulty that the front cover plate cracks when metal is aged due to ultrasonic vibration is effectively solved.

The present application is applicable to the technical field of information processing, and provides a method for pushing information, an apparatus, a terminal, and a storage medium. The method comprises: a first terminal playing back multimedia data, wherein audio data of the multimedia data is generated by superposing an ultrasonic audio signal and an original multimedia audio signal, the ultrasonic audio signal is used for pushing information, and the ultrasonic audio signal is generated by encoding and modulating the information; a second terminal receiving the audio data of the multimedia data; obtaining the ultrasonic audio signal on the basis of the audio data; determining the information on the basis of the ultrasonic audio signal; and displaying a target interface corresponding to the information, wherein the target interface is a webpage, an application page, a QR code, a picture, or an image containing push content. In the technical solution provided by the present application, according to actual conditions, a user can select whether to receive the push information, and a user views the push information on a second device while the user is not affected to normally view the multimedia data on a first device, thereby improving the use experience of the user.

The utility model relates to the technical field of exposure machines, in particular to an exposure machine with an automatic dust removal function, which comprises an exposure machine frame, a dust removal device and an exposure system are sequentially arranged on the exposure machine frame, and a reserved interval is arranged between the dust removal device and the exposure system and is used for operation of operators. And the dust collection electrode is connected with the positive electrode of the power supply. When the voltage rises to a certain degree, gas molecules near the discharge electrode are ionized, a large number of electrons and positive ions are generated, dust-containing gas is electrically separated when passing through a high-voltage electrostatic field, dust particles and negative ions are combined to carry negative electricity and then tend to discharge towards the surface of the anode to be deposited, and in order to guarantee that dust on the exposure plate can fully enter air, the exposure effect is good. And through the arrangement of the ultrasonic generator, dust can be in the air under the vibration of ultrasonic audio frequency, so that the dust can be thoroughly adsorbed to the dust collection electrode under the action of static electricity.

A process is disclosed for removing sulfides from liquid fossil fuel comprising mixing the liquid fossil fuel with an oxidizer and catalyst to form a multiphase reaction medium and producing a fluid flow of the multiphase reaction medium. Ultra sound may be applied to the multiphase reaction medium to cause oxidation of sulfides in the liquid fossil fuel to sulfones; and extracting the sulfones to yield an organic phase and aqueous phase. The ultra sound is performed by generating vibrations parallel to the fluid flow of the multiphase reaction medium. The organic phase substantially consists of desulfurized fuel.

Aspects of the subject technology relate to monitoring one or more characteristics of a speaker, such as an excursion, rocking amplitude, or force factor of the speaker. The monitoring may be performed without the use or presence of a sensor that directly measures these speaker characteristics. The monitoring may include determining the excursion, rocking amplitude, or force factor based on an intermodulation distortion that occurs when an ultrasonic tone and one or more human audible tones are output by the speaker concurrently, and / or based on a phase difference between peaks in a speaker current and a speaker voltage.

1. The name of the design product: Bluetooth sound (ultrasound 508). 2. The use of the design product: Bluetooth sound for playing audio. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The invention discloses an air tightness detection system and method, the air tightness detection system comprises a box body, a sound generation unit and a detection unit, the sound generation unit comprises an inflation unit, the inflation unit is located outside the box body, the inflation unit is communicated with the box body, and the inflation unit is configured to inflate gas into the box body to generate ultrasonic waves; the detection unit is arranged outside the box body and is configured to detect ultrasonic audio parameters generated by the box body and compare the ultrasonic audio parameters with preset parameters. According to the scheme provided by the invention, the box body is inflated through the inflation unit to generate ultrasound, at the moment, the detection unit detects the corresponding ultrasonic audio parameter and compares the ultrasonic audio parameter with the preset parameter, and when the ultrasonic audio parameter is greater than the preset parameter, the airtightness of the box body is judged to be invalid, so that the overall detection process is simple, the efficiency is high, and the detection accuracy is high. And convenience is brought to detection personnel.

A system for providing augmented ultrasonic audio in a vehicle, including a first ultrasonic transducer arranged to direct a first ultrasonic acoustic signal to a first listening zone within a cabin of the vehicle, wherein the first listening zone is disposed at a first seating location; a first plurality of midrange speakers arranged to direct a first binaural midrange acoustic signal to the first listening zone, wherein the first plurality of midrange speakers are each near-field speakers; and a controller configured to drive the first ultrasonic transducer with a first upper range content of a first content signal, such that the first ultrasonic acoustic signal is modulated with the first upper range content, and to drive the first plurality of midrange speakers with a first midrange content of the first content signal such that the first binaural midrange acoustic signal includes the first midrange content.

Aspects of the subject technology relate to monitoring one or more characteristics of a speaker, such as an excursion, rocking amplitude, or force factor of the speaker. The monitoring may be performed without the use or presence of a sensor that directly measures these speaker characteristics. The monitoring may include determining the excursion, rocking amplitude, or force factor based on an intermodulation distortion that occurs when an ultrasonic tone and one or more human audible tones are output by the speaker concurrently, and / or based on a phase difference between peaks in a speaker current and a speaker voltage.

The invention is suitable for the technical field of information processing, and provides an information pushing method and device, electronic equipment and a storage medium, the method comprises the following steps: a first terminal plays multimedia data, audio data of the multimedia data is generated by superposing an ultrasonic audio signal and an original audio signal of multimedia, and the ultrasonic audio signal is used for pushing information; the ultrasonic audio signal is generated by encoding and modulating information; the second terminal receives audio data of the multimedia data; obtaining an ultrasonic audio signal according to the audio data; determining information according to the ultrasonic audio signal; and displaying a target interface corresponding to the information, wherein the target interface is a webpage, an application page, a two-dimensional code, a picture or an image containing the push content. In the technical scheme provided by the invention, the user can select whether to receive the push information or not according to the actual situation, and the user can view the push information on the second equipment while normally watching the multimedia data on the first equipment is not influenced, so that the use experience of the user is improved.

The invention discloses an intelligent anti-recording method and system, and the method comprises the steps: obtaining an audio signal; matching the audio signal with a preset condition; and when the audio signal satisfies a preset condition, an interference signal which interferes with the recording device is played according to a preset control strategy, and the interference signal is one group or multiple groups of ultrasonic audio signals. Therefore, recording prevention measures can be started when the audio signal meets the preset condition so as to interfere the working environment of the recording equipment and enable the recording equipment not to normally record in the signal acquisition process.

A system for providing augmented ultrasonic audio in a vehicle, including a first ultrasonic transducer arranged to direct a first ultrasonic acoustic signal to a first listening zone within a cabin of the vehicle, wherein the first listening zone is disposed at a first seating location; a first plurality of midrange speakers arranged to direct a first binaural midrange acoustic signal to the first listening zone, wherein the first plurality of midrange speakers are each near-field speakers; and a controller configured to drive the first ultrasonic transducer with a first upper range content of a first content signal, such that the first ultrasonic acoustic signal is modulated with the first upper range content, and to drive the first plurality of midrange speakers with a first midrange content of the first content signal such that the first binaural midrange acoustic signal includes the first midrange content.