Delayed Sweep Oscilloscope: Many oscilloscopes of laboratory quality include a delayed sweep feature. Delayed Sweep Oscilloscope feature increases the versatility of the instrument by making it possible to magnify a selected portion of an undelayed sweep, measure waveform jitter or rise time, and check pulse time modulation, as well as many other applications. Delayed sweep […]
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Various CRT Connections and Controls in CRO Panel: Figure 7.16 shows various controls and Typical CRT Connections. The following controls are available on CRO panel. Intensity: It controls the magnitude of emission of the electron, beam, i.e. the electron beam is adjusted by varying the cathode-to-grid bias voltage. This adjustment is (folk by the 500
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Oscilloscope Operating Precautions: In addition to the general safety precautions, the following specific precautions should be observed when operating any type of oscilloscope. Most of the Oscilloscope Operating Precautions also apply to recorders. Always study the instruction manual of any oscilloscope with which you are not familiar even if you have had considerable experience with
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Fibre Optic CRT Recording Oscilloscope: Fibre Optic CRT Recording Oscilloscope – The familiar CRT oscilloscope has an extremely HF response, but permanent records, normally photography of the screen, cannot be taken, since they are time limited to one sweep. By combining a special fibre optic CRT with an oscillograph type paper drive (which passes the
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What is Digital Storage Oscilloscope (DSO)?: Digital Storage Oscilloscope are available in processing and non-processing types. Processing types include built in computing power, which takes advantage of the fact that all data is already in digital form. The inclusion of interfacing and a microprocessor provides a complete system for information acquisition, analysis and output. Processing
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Applications of Oscilloscope: The range of applications of oscilloscope varies from basic voltage measurements and waveform observation to highly specialized applications in all areas of science, engineering and technology. Voltage Measurements: The most direct voltage measurement made with the help of an oscilloscope is the peak to peak (p-p) value. The rms value of the
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Attenuators: Attenuators are designed to change the magnitude of the input signal seen at the input stage, while presenting a constant impedance on all ranges at the attenuator input. A compensated RC attenuator is required to attenuate all frequencies equally. Without this compensation, HF signal measurements would always have to take the input circuit RC
Probes for CRO: Direct Probes (1 : 1): The simplest types of Probes for CRO (one can hardly call it a probe) is the test lead. Test leads are simply convenient lengths of wire for connecting the CRO input to the point of observation. At the CRO end, they usually terminate with lugs, banana tips
Oscilloscope as a Bridge Null Detector: As a null detector for an ac bridge, the oscilloscope, unlike a meter used for the purpose, gives separate indications for reactive and resistive balances of the bridge. Figure 7.40 shows how an oscilloscope is connected to the bridge. Here T is the shielded transformed and C-R form an
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Measure of Capacitance and Inductance in Oscilloscope: Measure of Capacitance and Inductance in Oscilloscope – Capacitance may be measured from a capacitor discharge curve. This requires a dc oscilloscope with a triggered single sweep that is of the storage type. Figure 7.38 (a) shows the test setup. C is the capacitor under test, and E
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