ULTRASONIC SENSOR

• Main Author: KAWAGUCHI SHOJIRO
• Format: Patent
• Language: English
• Published: 06.02.1992
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DEAF-AID SETS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; MEASURING; PERFORMING OPERATIONS; PHYSICS; PUBLIC ADDRESS SYSTEMS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

PURPOSE:To change the color of the collar part of a microphone part to cope with the classification of an automobile by providing the microphone part, which has an ultrasonic microphone in one side and has a cylindrical housing part and the collar part projecting outward in the other side, and a preamplifying part incorporating a preamplifier. CONSTITUTION:A microphone part 1 consists of an ultrasonic microphone 11, a housing part 12 supporting this microphone 11, and a collar part 13 arranged in the end part of the housing part 12. The ultrasonic microphone 11 has a transmitter and a receiver unified and is driven by input of a tone burst wave to a piezoelectric element with a certain or arbitrary period. With respect to the collar part 13, a cylinder part 13a stuck to the outside periphery of the microphone housing 12b, a first collar part 13b which holds a microphone holding member 12a on the inner peripheral surface of the microphone housing 12b, and a second collar part 13c having a projecting part which guides the outside surface of a bumper 6 to position the microphone part 1 are formed unitedly. The color of the collar part 13 is determined in accordance with the color of a bumper 6 of the automobile. Thus, this color is changed to cope with various automobiles.