Array Signal Processing

How To Measure Exponential Time Constant Using An Oscilloscope

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How To Measure Exponential Time Constant Using An Oscilloscope

An oscilloscope is a primary instrument for time-domain measurements. Currently, most digital oscilloscopes include approximately 25 built-in measurement parameters as standard supplements. By adding application customization options, the number of parameters can be increased to over a hundred. Even with such a vast measurement capability, some measurements must utilize existing measurement tools to derive results. … Read more

Methods to Reduce Waveform Noise with Oscilloscope

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Methods to Reduce Waveform Noise with Oscilloscope

Before learning how to use an oscilloscope to reduce noise, let’s first understand how noise in oscilloscopes arises. Many people who have just transitioned from analog oscilloscopes to digital oscilloscopes may complain that the waveforms measured by their new oscilloscope are not as clear as those from their old analog oscilloscope, even doubting whether their … Read more

Maximizing Oscilloscope Measurement Accuracy

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Maximizing Oscilloscope Measurement Accuracy

Improving the accuracy of an oscilloscope is not difficult, but attention to detail is required. This article will explore various methods to enhance oscilloscope measurements. Using Multiple Grids to Maintain Dynamic Range A common use of an oscilloscope (4 channels) is to sacrifice one-quarter of its dynamic range by attenuating the amplitudes of several signals … Read more

Recalibration of Oscilloscope Signals and Cable De-embedding

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Recalibration of Oscilloscope Signals and Cable De-embedding

The oscilloscope measures the voltage applied to its input. In most cases, this is not an issue, but in certain situations, it is necessary to move the reference measurement plane and recalibrate the oscilloscope’s measurements. For example, if a minimum insertion loss impedance box (MLP) is used to terminate a measurement source with an impedance … Read more

A Brief Discussion on the Differences Between Analog and Digital Oscilloscopes

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A Brief Discussion on the Differences Between Analog and Digital Oscilloscopes

An oscilloscope is a window to observe waveforms, allowing designers or maintenance personnel to see electronic waveforms in detail, achieving a real-time visual effect. Because the human eye is the most sensitive visual organ, it can perceive minute details and quickly reflect objects to the brain for comparison and judgment. According to the different classifications … Read more

How to Stabilize Waveform Signals from Two Different Signal Sources on an Oscilloscope?

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How to Stabilize Waveform Signals from Two Different Signal Sources on an Oscilloscope?

In the field of electronic engineering, oscilloscopes are important tools for analyzing signal characteristics. When it is necessary to observe and stabilize the waveforms from two different signal sources simultaneously, how can electronic engineers achieve this? Below are the specific steps to efficiently stabilize the display of both signals on the oscilloscope. 1. Check Signal … Read more

Why Are Oscilloscopes So Expensive?

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Why Are Oscilloscopes So Expensive?

Oscilloscopes Are Simple Yet Complex! But Why Are Oscilloscopes So Expensive? Most cost thousands or tens of thousands, why are they so expensive? Structure of Digital Oscilloscopes The Reason Oscilloscopes Are Considered Simple Is That An Oscilloscope Is A Test Instrument That Can Display The Dynamic Waveform Of Voltage Signals. An Oscilloscope Converts Time-Varying Voltage … Read more

What Is an ECU? Causes of Errors and High Load

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What Is an ECU? Causes of Errors and High Load

What Is an ECU? ECU, or Electronic Control Unit, also known as the “onboard computer”, is essentially a microcontroller for automobiles. It is composed of a microprocessor, memory, input/output interfaces, analog-to-digital converters, and other large-scale integrated circuits, similar to a regular computer. In simple terms, the ECU is the “brain” of the car. It is … Read more

Essential Structure of Medical Ultrasound Diagnostic Equipment

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Essential Structure of Medical Ultrasound Diagnostic Equipment

Source: Web Authors: Chen Manshan, Yuan Yang The medical ultrasound diagnostic equipment refers to devices that utilize the properties of ultrasound to perform examination functions. Ultrasound is a mechanical wave with a vibration frequency >20kHz, which exceeds the upper limit of human hearing. The frequency range of ultrasound is from 2×10-2 to 2×100 Hz, while … Read more

Next Generation Ubiquitous Wireless Sensing Inspired by Deep Learning

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Next Generation Ubiquitous Wireless Sensing Inspired by Deep Learning

One Background Introduction Human perception of the physical world has evolved from subjective feelings to sensors and then to sensor networks, as shown in Figure 1. As sensors become smaller and data collection becomes more widespread, a prominent issue has also emerged: the high deployment cost of sensing systems. Especially as the sensing range and … Read more