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  2. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    The technique is inherently self-cleaning. It is highly recommended for liquid level measurement applications where ultrasonic, float or microwave techniques have proved undependable. The system will require constant supply of air during measurement. The end of the tube should be above certain height to avoid sludge from clogging the tube.

  3. Emerson Electric - Wikipedia

    en.wikipedia.org/wiki/Emerson_Electric

    Emerson Electric office in Markham, Ontario. Emerson Electric Co. is an American multinational corporation headquartered in St. Louis, Missouri. [2] [3] [4] The Fortune 500 company delivers a range of engineering services, manufactures industrial automation equipment, climate control systems, and precision measurement instruments, and provides software engineering solutions for industrial ...

  4. Ultrasonic transducer - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_transducer

    Since piezoelectric materials generate a voltage when force is applied to them, they can also work as ultrasonic detectors. Some systems use separate transmitters and receivers, while others combine both functions into a single piezoelectric transceiver. Ultrasound transmitters can also use non-piezoelectric principles such as magnetostriction.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. List of military electronics of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_military...

    AN/ALT - Airborne Countermeasures Transmitters Designation Purpose/Description Location/Used By Manufacturer AN/ALT-13: Electronic countermeasure barrage transmitter: B-52 Stratofortress: Hallicrafters: AN/ALT-15: Electronic countermeasure barrage transmitter: B-52 Stratofortress: Hallicrafters: AN/ALT-16: Electronic countermeasure transmitter ...

  7. Emergency position-indicating radiobeacon - Wikipedia

    en.wikipedia.org/wiki/Emergency_position...

    Overview diagram of COSPAS-SARSAT communication system used to detect and locate ELTs, EPIRBs, and PLBs First generation EPIRB emergency locator beacons. An emergency position-indicating radiobeacon (EPIRB) is a type of emergency locator beacon for commercial and recreational boats, a portable, battery-powered radio transmitter used in emergencies to locate boaters in distress and in need of ...

  8. Broadcast transmitter - Wikipedia

    en.wikipedia.org/wiki/Broadcast_transmitter

    A broadcast transmitter is an electronic device which radiates radio waves modulated with information content intended to be received by the general public. Examples are a radio broadcasting transmitter which transmits audio (sound) to broadcast radio receivers (radios) owned by the public, or a television transmitter, which transmits moving images to television receivers (televisions).

  9. Hand pump - Wikipedia

    en.wikipedia.org/wiki/Hand_pump

    VLOM, meaning Village Level Operation and Maintenance, is a term first used during the UNDP and World Bank Rural Water Supply Hand Pumps Project. This project lasted from 1981 to 1991, and studied the availability and maintenance of hand pump systems. 40 kinds of hand pumps were analyzed in laboratories, and the performance of 2700 hand pumps ...