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  • Ultrasonic sensors
    Ultrasonic sensors can measure distance without contact. Typical ultrasonic sensors emit highfrequency sound waves that are reflected by the target. A target in the path of the sound wave reflects the sound back to the sensor where it is detected, triggering the sensor output. Special programmable
  • Ultrasonic Inspection Techniques
    Ultrasonic inspection techniques are used to detect surface and sub-surface flaws or to measure thickness. Beams of high frequency acoustic energy are introduced into the material and subsequently retrieved. Distance calculations are based on the speed of sound through the material being evaluated
  • Acoustic / Ultrasonic Transducers
    Ultrasonic transducers send and receive waves for many types of sensing. Distance, proximity, level, nondestructive evaluation, web break detection, counting, and security applications are some examples. Ultrasonic transducers typically operate at their resonant frequency with various construction
  • Delay Time Measurement with Ultrasonic Sensors
    Many industrial ultrasonic sensors are based on the delay time measurement. As has been mentioned in the introduction, the "measurement representation" thereby is the propagation velocity of the sound in the air, which is 330 m/s under normal conditions. The sensors utilized for these functions
  • Ultrasonic Equivalent Manufacturers use MTI-2100 Fotonic Sensor for Precise and Repeatable Vibration Measurements
    Take a look around and youâ ll be surprised to see how many products you come in contact with everyday that use ultrasonics for assembly. Diapers, plastic toys, bags and packages, to name a few, all rely on a process called ultrasonic welding. Ultrasonics is defined as acoustic frequencies above
  • Application Note: Robot Sprayer
    Ultrasonic sprayers control the distance of a waxing robot to the car body. The sensing distance is 200 to 400 mm.
  • Effects of Ultrasonics on Health
    each time the distance is doubled (i.e., every time the distance is doubled, 1/8 of the energy remains). The ultrasonic airborne energy is also absorbed into soft, non-reflecting materials (e.g., worker's clothing or noise abatement foam materials). The remaining airborne ultrasonic energy
  • Understanding Ultrasonics
    Ultrasonic signals are like audible sound waves, except the frequencies are much higher. Our ultrasonic transducers have piezoelectric crystals which resonate to a desired frequency and convert electric energy into acoustic energy and vice versa. The illustration shows how sound waves, transmitted

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  • Progress in Optomechatronic Technologies
    Abstract In this paper, distance values of ultrasonic distance sensor and the rotation angle values of the servo motor are used as a way of tracking the moving object.
  • Sensor technique
    � parameters, oxide-layer, Einbauspiele 284 air flow meters 886 combination of sensors, 885 mechanical structure, 884 micromechanical, 877 with additional sensing technology, 887 air mass measurement, thermal 868 structure, 872 evaluating circuit, sees 588 air ultrasound distance sensor 878 function principles �
  • Raspberry Pi Sensors
    We have created the ultrasonic distance meter.
  • Learning Robotics Using Python
    � motor with Tiva C LaunchPad Differential wheeled robot Installing the Energia IDE Interfacing code Interfacing quadrature encoder with Tiva C Launchpad Processing encoder data Quadrature encoder interfacing code Working with Dynamixel actuators Questions Summary Working with ultrasonic distance sensors Interfacing HC-SR04 �
  • Advances in Mechanical and Electronic Engineering
    The paper presents the working principle of ultrasonic distance measurement, the structure properties of ultrasonic sensors, the ultrasonic sensors in the transmitter and receiver probe and their inter-action problem in details.
  • http://www.ndt.net/article/ultragarsas/Vol.66-No.1-2011_02-Petrauskas.pdf
    By combining the ultrasonic distance determination method with the mechanical level determination methods, very precise leveling instruments can potentially be created.
  • http://www.ndt.net/article/ultragarsas/Vol.65-No.3-2010_01-Raisutis.pdf
    The ultrasonic distance measurement in air may be performed by the time-of-flight (TOF) technique, single frequency continuous wave phase shift, two-frequency continuous wave method, combining methods of TOF and phase-shift and etc. [1-9].
  • http://eprints.hud.ac.uk/9106/1/fjaldawifinalthesis.pdf
    A high-accuracy and high-resolution ultrasonic distance measurement system has been achieved in this project by creating multi-frequency continuous wave frequency modulation (MFCWFM) system.