Oscilloscopes
The oscilloscope is the central instrument in any electronic test chain. It displays voltage as a function of time and characterises signal dynamics: amplitude, frequency, jitter, distortion or noise. Modern models offer bandwidths from 70 MHz to over 20 GHz, with sampling speeds in excess of 20 GS/s and acquisition memories in excess of 100 Mpts. In R&D, the oscilloscope is used to analyse fast transitions, rising edges, ground bounce and phase shifts between channels. In production, it checks tolerances and validates the functional margins of circuits. In maintenance, it identifies transient faults and power supply instabilities. FFT, serial bus decoding (CAN, SPI, UART, I²C), eye diagram and power measurement functions extend its use to embedded and power electronics. Connected via LAN, USB, GPIB or SCPI, it can be integrated into automated test benches for IEC 61010 and ISO 17025 qualification.
A universal instrument, the oscilloscope remains the benchmark for observing, understanding and improving the reliability of electronic signal behaviour.
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MSOS804A
KEYSIGHT
MSOS804A oscilloscope with 4 analogue and 16 digital channels, ideal for complex signals.
54650A
KEYSIGHT / AGILENT / HP
Module d’interface GPIB pour oscilloscopes de la série 54600.
E2697A
KEYSIGHT / AGILENT / HP
Adaptateur haute impédance pour oscilloscopes Agilent Infiniium.
DSOS404A
KEYSIGHT / AGILENT / HP
Oscilloscope numérique 4 voies, 4 GHz, 10 Gs/s, 16-Bits de résolution.
P6139B
TEKTRONIX
Sonde Passive DC à 500MHz, 10x +/-5%, compensation de la capacité d’entrée.
HFP2500
TELEDYNE LECROY
Active 2.5 GHz probe with 0.7pF capacitance and ±8 V dynamic range.
TDS694C
TEKTRONIX
Oscilloscope numérique 4 x 3 GHz, 10 Gs/s avec interfaces RS232, centronics, GP-IB.
WAVEPRO-760ZI
TELEDYNE LECROY
4-channel digital oscilloscope, 6 GHz, 40 Gs/s, 20 Mpts memory per channel.
MDO4034C
TEKTRONIX
Oscilloscope 4 voies 350 MHz avec analyseur de spectre optionnel pour des mesures précises.
DG2020A
TEKTRONIX
200MB/s pattern generator, 12 channels, 64KB memory/channel, 12-bit resolution.
DPO4034B
TEKTRONIX
Digital oscilloscope DPO 4x350MHz, 2.5GS/s per channel, 10Mpts memory.
practical questions about oscilloscopes
01
O1. What are the technical criteria for comparing two oscilloscopes?Bandwidth, number of channels, sampling frequency, memory depth and compatibility with digital protocols are essential. These parameters determine the accuracy and relevance of measurements in a given context.
02
Is a reconditioned oscilloscope suitable for R&D use?Yes, provided it has been checked according to rigorous metrology procedures. A top-of-the-range reconditioned device can offer the same performance as a new model at a much lower cost.
03
What's the difference between an analogue and a digital oscilloscope?Analogue displays a continuous signal, while digital converts the signal into discrete data. Today's digital models incorporate advanced analysis, storage and processing functions, making them dominant in industrial use.
04
What does the bandwidth of an oscilloscope mean?This is the frequency range that the instrument can measure without significant attenuation. It must be at least five times higher than the maximum frequency of the observed signal to guarantee a faithful measurement.
05
Should I choose an oscilloscope with a passive or active probe?This depends on the application. Active probes offer better bandwidth and less load on the circuit being measured, making them ideal for high-frequency or sensitive signals. Passive probes are suitable for standard measurements.
