FIGURE OF MERIT TUNING FOR SONAR
    33.
    发明公开

    公开(公告)号:US20240094366A1

    公开(公告)日:2024-03-21

    申请号:US17946263

    申请日:2022-09-16

    申请人: NAVICO HOLDING AS

    发明人: Jayme J. Caspall

    IPC分类号: G01S7/52 G01S15/89

    CPC分类号: G01S7/52003 G01S15/89

    摘要: A sonar transducer system is provided having a display and a sonar transducer assembly having a transmitter configured to transmit sonar signals. The transmitter has a peak transmit sensitivity occurring at a first frequency. The sonar transducer assembly has a receiver configured to receive return sonar signals, with the receiver having a peak receive sensitivity occurring at a second frequency. The transmitter and the receiver share a same facing direction and are provided as physically separate components. At least one of the transmitter or the receiver is tuned so that the peak transmit sensitivity and the peak receive sensitivity occur at a same frequency. The sonar transducer assembly is configured to improve the peak transmit sensitivity and/or the peak receive sensitivity to generate a sonar image having a greater quality, and the sonar image may be presented on the display.

    MEASURING APPARATUS AND METHOD FOR MEASURING ELECTROMAGNETIC WAVES

    公开(公告)号:US20240085543A1

    公开(公告)日:2024-03-14

    申请号:US18261719

    申请日:2022-01-18

    申请人: MECORAD GMBH

    IPC分类号: G01S7/52 G01S7/02 G01S7/40

    摘要: The invention relates to a measuring device for electromagnetic waves, in particular a radar apparatus, for a measurement of a measure, in particular a distance, in particular a distance of one or more objects to be measured, and/or a signal intensity, in particular a signal intensity correlating with a size and/or quantity of one or more objects to be measured, with compensation of a drift behavior, in particular a temperature-dependent drift behavior, comprising a housing, in particular a hermetically sealed off and/or lockable housing, a sensor and/or receiver for electromagnetic waves which is/are which is/are arranged in the housing, in particular a receiver for electromagnetic waves in the radio frequency range, which comprises, in particular, an oscillator, a detection device, which is arranged in the housing, for detecting at least one physical parameter, in particular a physical parameter of the environment, in particular a temperature, in particular an ambient temperature, in particular a temperature of an ambient air in the housing, and/or a current oscillation frequency and/or natural frequency of an oscillator, in particular an oscillator, frequency generator and/or oscillation crystal of the sensor or receiver.
    The invention further relates to a method for measuring a measure, in particular a distance, in particular a distance of one or more objects to be measured, and/or a signal intensity, in particular a signal intensity correlating with a size and/or quantity of one or more objects to be measured, with compensation of a drift behavior, in particular a temperature-dependent drift behavior, in particular using a measuring device for electromagnetic waves, further in particular a radar apparatus, at least comprising the following steps:



    a detection of at least one physical parameter in a housing, in particular a hermetically sealed and/or lockable housing, in which a sensor and/or receiver for electromagnetic waves is arranged, wherein the at least one physical parameter comprises a physical parameter of the environment, in particular a temperature, in particular an ambient temperature, in particular a temperature of an ambient air in the housing, and/or a current oscillation frequency and/or natural frequency of an oscillator, in particular an oscillator of the sensor or receiver for electromagnetic waves;
    obtaining, in particular calculating or reading from a database, a compensation and/or compensation function and/or a compensation factor on the basis of the at least one physical parameter, in particular a compensation and/or compensation function, which is suitable for compensating, on the basis of the at least one physical parameter, a measuring error caused by an environmental parameter and/or an environmental factor on a measurement result which is based at least in part on a sensor and/or receiver for electromagnetic waves.

    METHOD AND APPARATUS FOR MANAGING WAVEFORM DATA AND DELAYS IN A WAVEFORM GENERATOR

    公开(公告)号:US20240081778A1

    公开(公告)日:2024-03-14

    申请号:US17943643

    申请日:2022-09-13

    摘要: A signal decode circuit is coupled to a buffer for each signal channel. A memory includes a shared area configured to store waveform data sets, each waveform data set including a sequence of coded waveform values specifying waveform step states. The shared area further stores delay data sets, each delay data set including a digital delay value for each signal channel defining a delay profile. A signal pointer addresses the shared area to read one waveform data set from the memory with the sequence of coded waveform values being selectively loaded into one or more of the buffers. A delay pointer addresses the shared area to read one delay data set from the memory with the digital delay values used to control delayed actuation of the signal decode circuits to decode the sequence of coded waveform values from the buffers and generate waveform signals in accordance with the delay profile.

    ULTRASONIC SENSOR
    40.
    发明公开
    ULTRASONIC SENSOR 审中-公开

    公开(公告)号:US20240038208A1

    公开(公告)日:2024-02-01

    申请号:US18485230

    申请日:2023-10-11

    申请人: DENSO CORPORATION

    摘要: An ultrasonic sensor includes a magnetic substance, a diaphragm, and an electromagnetic transducer. The electromagnetic transducer is disposed opposing the magnetic substance across an outer plate of a vehicle. The diaphragm has the shape of a thin film with a film thickness direction along an axial direction parallel to a directional axis. The diaphragm is able to ultrasonically oscillate by being joined to an outer surface of the outer plate at an outer edge in a radial direction crossing the directional axis. With the outer edge of the diaphragm joined to the outer surface of the outer plate, an internal space that expands and contracts along the axial direction in response to ultrasonic oscillation of the diaphragm is formed between the diaphragm and the outer surface of the outer plate.