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Research on high-frequency small-load fatigue testing device driven by piezoelectric actuator.
Review of Scientific Instruments, 2019A novel small-load fatigue testing device whose actuation resource is the piezoelectric material is proposed. The procedure of energy conversion and motion transfer is analyzed in detail.
Xiangli Zeng +4 more
semanticscholar +1 more source
Physics in Medicine & Biology, 1982
A test device is described which overcomes problems previously experienced in EEG equipment testing. The device consists of several sine-wave generators, an equal number of 2-wire dipole sources and a lemon or orange.
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A test device is described which overcomes problems previously experienced in EEG equipment testing. The device consists of several sine-wave generators, an equal number of 2-wire dipole sources and a lemon or orange.
openaire +2 more sources
2017
<div class="section abstract"> <div class="htmlview paragraph">This method covers all electric outboards.</div> </div>
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<div class="section abstract"> <div class="htmlview paragraph">This method covers all electric outboards.</div> </div>
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On test [electronic device testing]
Manufacturing Engineer, 2003With electronic devices and components getting smaller and smaller, accurate, reliable test systems are becoming more of a challenge that designers must take seriously. 2 methods are described. Electrical testing is technically very difficult to set up, but devices that have been designed to Joint Test Action Group (JTAG) standards are provided with a ...
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Development of an Integrated Load Testing Device for a Substructure Hybrid Test of a Curved Bridge
Experimental techniques (Westport, Conn.), 2021C. Du, T. Wang, H. Zhou, Z. Sun, Y. Lei
semanticscholar +1 more source
The Journal of the Acoustical Society of America, 1983
An apparatus and method for testing electric horns. A sound-detecting fixture includes an elongated progressive wave tube containing a mass of sound-absorptive material and a means for seating a horn adjacent one end of the tube. Sound detecting means are interposed between the horn and sound-absorptive material to detect the sound level output of the ...
openaire +1 more source
An apparatus and method for testing electric horns. A sound-detecting fixture includes an elongated progressive wave tube containing a mass of sound-absorptive material and a means for seating a horn adjacent one end of the tube. Sound detecting means are interposed between the horn and sound-absorptive material to detect the sound level output of the ...
openaire +1 more source
Proceedings of the IRE, 1934
In this paper there is described a test device for showing frequency response curves visually wherein the recording apparatus is a cathode ray tube. In this method a sine voltage is used for the deflection of the beam, and the capacity of the rotating condenser is varied sinusoidally.
openaire +1 more source
In this paper there is described a test device for showing frequency response curves visually wherein the recording apparatus is a cathode ray tube. In this method a sine voltage is used for the deflection of the beam, and the capacity of the rotating condenser is varied sinusoidally.
openaire +1 more source
Device to test manometric systems
Medical & Biological Engineering, 1976As a result of the need to know the exact performance characteristics of the manometry systems utilised during the course of experiments, and in the operating room, we have constructured a simple device by means of which a visual image of the frequency-amplitude response envelope of such systems can be quickly and easily obtained.
M, Weiss +4 more
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