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. 

The method, as so far developed, is limited by the condition that the hydration-dehydration reaction must proceed at a rate that is slow compared with the time needed to obtain a polarogram. In principle, the method is capable of much wider application to covalent-hydration studies if use is made of oscillographic polarographic techniques or of chronopotentiometry. These refinements are currently being investigated. 

Schwlngungs-gieichung, /. vibration equation, -kreis, m. (Elec.) oscillatory circuit, -me-thode, /. swing method. -quanten2ahl, /. vibrational quantum number, -schreiber, m. oscillograph, -weite, /. amplitude of vibra tion. -Welle,/, undulation, vibrational wave, -zahl, /. vibration nmnber, vibration fre quency. -zeit,/. time of vibration, -zustand, m. state of vibration or oscillation. 

Oscillograph. A cathode-ray oscilloscope in which a photographic or other permanent record is produced by the electron beam of a cathode-ray tube. A cathode-ray oscilloscope is a test instrument that uses a cathode-ray tube to make visible on a fluorescent screen the instantaneous values and waveforms of electrical quantities that are rapidly varying as a function of time... 

Pin Method or Pin-Oscillograph Method For Detonation Rate Measurement. See Vol 3,... 

Perfluoroalkane-225 (PGR, Gainesville, FL) was admitted through a glass inlet system to provide reference peaks. Analytical and reference peaks for the nitrosamines studied are shown in Table I. Sample and reference peaks were scanned alternately at a repetition rate of approximately 1 sec and were monitored on an oscilloscope. When the nitrosamine peak appeared, the oscillographic recorder chart drive was engaged and remained on until the peak disappeared. Nitrosamine quantities were estimated by comparing the sum of sample peak heights measured from the chart (usually 10 to 20 values) with values derived from injection of standard solutions. 

In transient measurements one must record rapidfy changing currents or potentials. In the past, cathode-ray oscilloscopes have been used for this purpose (at present, improved recording devices or computers are used as well), hence the term oscillographic polarography (or oscillographic voltammetry). This term is unfortunate since it reflects only the device used to record the results, rather than the essential features of the method used for the measurements. 

Fig. 5. Oscillographic traces of the 380 nm absorption of growing silver particles (a) only Ag atoms...

Rapid DC polarography These principles can be 5. Linear-sweep 1. Polarography with 2. Oscillographic ... 

Fig. 3.54. Normal and derivative oscillographic AC polarograms, (a) without and with acid, (b) with depolarisator. 

R. Kalvoda, Techniques of Oscillographic Polarography, Elsevier, Amsterdam, 2nd ed., 1965. 

The development of a yellow colour on the surfaces of white or light-coloured articles, but also applied to any darkening of such surfaces. Yersley Oscillograph... 

Fig. 4.3. Photograph of the oscillographic output of the electron ionization TOF spectrum of xenon on a Bendix TOF-MS. The dark lines are a grid on the oscillographic screen. (For the isotopic pattern of Xe cf. Fig. 3.1.) Adapted from Ref. [20] with permission. Pergamon Press, 1959.

---