摘要:
An ultrasonic sensor is described having a housing which has a circumferential side wall and a base surface. A transducer element for generating ultrasonic vibrations is mounted on the base surface. The side wall includes a lower side wall section, in which the side wall has an essentially rotationally asymmetrical profile in a plane parallel to the base surface, and an upper side wall section in which the side wall changes to an essentially rotationally symmetrical profile toward an upper edge of the side wall. In other respects, the present system provides a parking assistance system for a vehicle, having a control unit and such an ultrasonic sensor, as well as a method for manufacturing an ultrasonic sensor.
摘要:
The present invention discloses a driving circuit for electronic horn and a driving method for the electronic horn. The driving circuit includes an oscillating circuit, which generates a signal having oscillating frequency. Based on the signal, said driving circuit generates a driving signal to drive the electronic horn to produce sound. It is characterized in that said oscillating circuit includes a variable capacitor, and the oscillating frequency is changed by adjusting capacitance of the variable capacitor so as for the frequency of the driving signal to be consistent with working frequency of the electronic horn. The present invention overcomes the problem of mismatch between the frequency of circuit's driving signal and the horn's sounding diaphragm and horn's tone inflexion due to resistance change caused by vehicle vibration.
摘要:
A device for producing sound amplification having a control module operably associated with a digital sound device, and an amplifier connected to and supporting the digital sound device. The control module provides at least one input signal to the digital sound device, and the digital sound device receives an input signal from the control module, causing the digital sound device to produce a vibration, and causing the amplifier to increase the magnitude of the vibration.
摘要:
An implantable medical device comprising a housing and an ultrasonic transducer having a communication frequency coupled to a portion of the housing. The housing resonates at the communication frequency, and a casing is coupled to the housing and disposed over the ultrasonic transducer. The casing is adapted to amplify the deformation of the ultrasonic transducer in a bending mode and transfer the bending moment to the housing. An implantable medical device comprising a housing having an upper portion and a lower portion. A first ultrasonic transducer is coupled to a first connection rod and is coaxial with the first connection rod. The first ultrasonic transducer and first connection rod are interposed between the upper and lower portions such that the first ultrasonic transducer is adapted to vibrate the upper and lower portions simultaneously. A method of optimizing an ultrasonic transducer and a housing of an implantable medical device.
摘要:
The invention relates to an ultrasound sensor (2), in particular a vehicle ultrasound sensor, with a housing (4) with a membrane (6) mounted in or on a ring-shaped section (12) of the housing (4), and with a decoupling element (10) which extends at least in some sections between the membrane (6) and the ring-shaped housing section (12), at least one material recess (14 to 20) being provided in the ring-shaped housing section (12), and at least one material recess (14 to 20) viewed in the circumferential direction of the housing section (12) occupying at least 10% of the total circumference of the housing section (12).
摘要:
A method of manufacturing an ultrasonic sensor including a case, a piezoelectric element having first and second electrodes, and a conductive member having first and second conductive parts is disclosed. The method includes the steps of a) forming the conductive member by integrally forming the first and second conductive parts and a joining part that joins portions of the first and second conductive parts, b) mounting the piezoelectric element and the conductive member in the case so that the first conductive part is connected to the first electrode and the second conductive part is connected to the second electrode, and the joining part and the portions of the first and second conductive parts joined by the joining part are positioned outside of the case, c) supplying a filling material into the case, and d) removing the joining part after step c).
摘要:
Die Erfindung betrifft einen Ultraschallsensor mit einer topfförmigen Membrane, die einen schwingungsfähigen Membranboden und eine den Membranboden wenigstens abschnittsweise umgebende Membranwandung aufweist. Die Erfindung kennzeichnet sich dadurch, dass die Membranwandung wenigstens abschnittsweise eine schaumartige Struktur aufweist.
摘要:
Die Erfindung betrifft einen Ultraschallwandler mit einer zur Schwingung anregbaren Membran, die eine dünn ausgebildete und längliche Membranfläche umfasst, und mit wenigstens einem auf der Membranfläche angeordneten Piezoschwinger. Die Erfindung kennzeichnet sich dadurch, dass die Membranfläche an ihren Längsseiten jeweils wenigstens eine Einschnürung aufweist.
摘要:
The sensor device, particularly for applications in parking aid, anti-break in systems or the like, comprising at least one transducer element of the piezoelectric type suitable for transmitting at least one ultrasonic signal and/or for receiving an echo signal reflected by at least one obstacle, electronic connection means associated with the transducer element and associable with at least one processing and control unit and one at least partial-containment body of the transducer element, the containment body being made of polymer material.