Adrenaline
发表于 2025-3-23 13:06:18
Representation of the Rising Flank of Pulse-Shaped Signal Voltages with Oscilloscopes Without Delayirminal network makes it possible to evaluate the characteristic properties of the latter (Ch. 11.13 “The use of square waves for assessing the properties of electrical transmission systems”). In all such investigations it is desirable to be able to observe the behaviour of the quadripole after a sud
肿块
发表于 2025-3-23 16:54:39
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冷漠
发表于 2025-3-23 19:59:24
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蒸发
发表于 2025-3-24 01:59:23
The Cathode Ray Tuben Fig. 2-1., the cathode cylinder having been removed for this purpose. As can be seen, it is bent double. This is done to obtain maximum heating by the most economical means. To insulate it from the cathode, the filament is coated with a layer of kaolin. The filament can be heated by direct or alternating current.
JEER
发表于 2025-3-24 05:00:41
Power Supply Unitings. The heater windings for E.H.T. rectifier valves and cathode ray tubes must be provided separately and be suitably insulated, as they are at a very high potential with respect to the chassis and to other windings.
烦扰
发表于 2025-3-24 06:35:06
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CHIP
发表于 2025-3-24 12:50:43
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空气传播
发表于 2025-3-24 16:01:55
Null-Indication in AC Bridge CircuitsThe cathode ray oscilloscope, a voltage indicator of extreme sensitivity, can be used with great advantage as a null-indicator for AC measuring bridges. Its high input impedance is of particular value in this connection.
文字
发表于 2025-3-24 21:06:09
Uses of Intensity ModulationIn most measurements with the oscilloscope, the electron beam, and thus the spot, is deflected by both pairs of deflection plates in co-ordinates at right angles to each other -the .- and the .-axes. It is, however, sometimes necessary to make a third quantity, namely time, visible on the fluorescent screen.
ordain
发表于 2025-3-25 02:08:42
Phase MeasurementsFundamentally, there are two distinct types of investigation involving phase measurement: