Cathode-ray oscillograph

CRO Cathode ray oscillograph, to record voltages of a transient nature. For instance, re-striking voltages (TRVs), whose frequency of oscillations is beyond the response range of EMO. 

The value of the first peak of the test wave is specified in Table 26.4. During the test there should be no rupture or fiashover at any part of the unit, which should be verified by a cathode ray oscillograph. An oscillograph should also be used to record the voltage and check the wave shtipe. 

Card Gap Test. See Refs 40 58 and also under GAP TESTS Cathode-Ray Oscillograph Photography. See Concrete Block Test. Fr test similar to Trauzl test, but using concrete instead of lead block. See Vol 3, p C495-L... 

CA 55, 17007 (1961) [A new method has been described, based on measuring the electromotive force in a conductor moving in a magnetic field with expln products. A Cu or Al foil 0.3-0.5 mm thick was used as the conductor, the emf being recorded by means of a cathode-ray oscillograph, and the speed (u) being ealed from the equation u = (r/Hl) x 10 cm/sec... 

In practice, neither the absolute energies nor their ratio is determined directly. Instead, the radiation of a particular wavelength falls on a multiplier-type phototube, and the voltage developed across its load resistor is measured with.a cathode-ray oscillograph. The deflection to the oscillograph is then proportional to E ... 

Other methods for measuring output of percussion primers include (1) method developed at PicArsn in 1946, based on measurement of the primer light output by means of a photoelectric tube and a cathode ray oscillograph (PAChemLabRepts 114842 118810) (2) measurement of output in... 

It is easy to do this if the electrode is a noble metal, he., does not itself easily oxidize on anodic polarization. One evolves H2 cathodically until the entire surface is covered with H atoms (0H =1) and then reverses the direction of the current, making it anodic and dissolving the adsorbed H atoms (MH —> M + H + e). It is easy, by use of a cathode ray oscillograph, to record the i,-t relation during dissolution at a constant potential. Apart from an initial charging potential, one obtains the coulombs used in... 

A)Cathode-Ray Oscillograph Photography. It is a graphic method of obtaining permanent records in the analysis of amplitudes and frequences of exec mechanical phenomena(Ref 3, 13a, 17b,... 

Cathode rays have many applications, such as in the cathode-ray tube and the cathode-ray oscillograph. The former is a vacuum tube in which the deflection of an electron beam indicates on a fluorescent screen instantaneous values of the actuating voltages or currents. The oscillograph incorporates a cathode ray tube and is used extensively in ballistics, such as for photographying rapid events(See under Cameras, High-Speed, Photographic)... 

Velocities of detonation have recently been measured by highspeed photography of the explosions through a slit, and by other devices in which the elapsed times are measured by means of a cathode-ray oscillograph. 

In 1922 in collaboration with his student Herbert Gasser, Erlanger adapted the cathode-ray oscillograph for studying nerve action potentials. They amplified the electrical responses of a single nerve fiber and analyzed them with the use of the oscilloscope. The characteristic wave pattern of an impulse generated in a stimulated nerve fiber could be observed on the screen and the components of the nerve s response studied. 

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