Oscilloscopes & Accessories

Oscilloscopes are laboratory instruments used to measure voltage against time and draw an instant graph of the voltage. They're used for a multitude of applications, most commonly to test new electrical equipment. Oscilloscopes, along with oscilloscope accessories, are crucial in ensuring accurate measurements and diagnostics. Regular calibration is required to maintain their precision.

Oscilloscopes can display both alternating current (AC) and pulsating direct current (DC) waveforms, ranging from as low as 1Hz to several MHz. High-quality oscilloscopes can also display signal frequencies up to several hundred GHz.

The display of an oscilloscope is segmented into horizontal divisions and vertical divisions. The time is displayed along the horizontal section, and it displays the voltage on the vertical section.

For more advanced testing, integrating an oscilloscope and spectrum analyzer allows users to not only visualize waveforms but also analyze the frequency spectrum, providing a comprehensive view of the signal's behavior.

Types of Oscilloscopes

There are many types of oscilloscopes, some of which are detailed below:

Analog Oscilloscopes

Also known as a cathode-ray oscilloscope, this is the oldest type. It produces an image on the display by causing a focused electron beam to travel in patterns across the face of a cathode ray tube.

Digital Oscilloscopes

These devices are built from various software and electronic hardware modules which work together to detect, process, and display electronic signals. Digital oscilloscopes come in various configurations, such as dual channel oscilloscopes and four channel handheld oscilloscopes, offering flexibility for different measurement needs.

Mixed Signal Oscilloscopes

This type operates two or four analogue channels along with a larger number of digital channels. The benefit of this oscilloscope is there's no need to use a separate logic analyzer.

Portable Oscilloscopes

Compact and lightweight, portable oscilloscopes, also known as handheld oscilloscopes, are designed for field use or situations where mobility is essential. They often feature battery power options and rugged construction. Popular choices include portable digital oscilloscopes and 4 channel handheld oscilloscopes. The handheld oscilloscope price can vary depending on features and capabilities.

Benchtop Oscilloscopes

Larger and more powerful than portable models, benchtop oscilloscopes offer advanced features and higher performance. They are ideal for laboratory settings or applications requiring in-depth signal analysis.

PC-Based Oscilloscopes

These oscilloscopes, sometimes called USB oscilloscopes or USB signal oscilloscopes, connect to a computer via USB or other interfaces, leveraging the processing power and display capabilities of the PC. They are often more affordable and offer flexibility in data analysis and storage.

Wireless Oscilloscopes

Eliminating the need for physical cables, wireless oscilloscopes provide greater freedom of movement and simplify setup in challenging environments. They transmit data wirelessly to a connected device for analysis.

Automotive Oscilloscopes

Specifically designed for automotive diagnostics and troubleshooting, these oscilloscopes offer features tailored to analyzing signals from various vehicle systems, such as engine control, sensors, and communication networks.

Key Features to Look for in an Oscilloscope

When selecting an oscilloscope, it's essential to consider the following key features to ensure it aligns with your measurement requirements and applications:

• Number of Channels: Oscilloscopes come with various channel options, such as dual channel oscilloscopes and four channel oscilloscopes. The number of channels determines how many signals you can simultaneously measure and compare.
• Bandwidth (Frequency Range): Bandwidth specifies the range of frequencies the oscilloscope can accurately measure. Choose a bandwidth that exceeds the highest frequency component of the signals you anticipate encountering.
• Resolution (Vertical Resolution): Vertical resolution refers to the number of bits used to represent the amplitude of the signal. Higher resolution provides finer detail and accuracy in voltage measurements.
• Portability: Consider whether you need a portable or benchtop oscilloscope. Portable models are ideal for field use, while benchtop oscilloscopes offer more advanced features and larger displays.

Oscilloscope Accessories

As well as our extensive range of oscilloscopes, we offer a wide choice of accessories, including spectrum analyzers, signal amplifiers, current probes and clamps – available from industry-leading brands such as Fluke, Keysight Technologies and ISO-TECH.

• Current Probes and Clamps – Current clamps and probes typically have jaws which open to clamp around an electrical connector to measure the current without having to make physical contact with it. They're often used to measure the magnitude of alternating current.
• Oscilloscope Probes – These are commonly used by electrical engineers. When selecting the correct probe, make sure the probe's capacitance is within the measuring range of the oscilloscope. To identify which probe is required, refer to the oscilloscope's manual.

Choosing the Right Oscilloscope

Selecting the ideal oscilloscope involves careful consideration of several factors to ensure it aligns with your specific needs and budget.

1. Assessing Your Application: The first step is to determine the type of signals you'll be measuring and the environment in which you'll be using the oscilloscope. This will help you identify the required bandwidth, number of channels, and portability.
2. Consider the Bandwidth and Sampling Rate: The bandwidth of an oscilloscope determines the range of frequencies it can accurately measure. Ensure the oscilloscope's bandwidth exceeds the highest frequency component of the signals you'll be analyzing. Additionally, consider the sampling rate, which affects the oscilloscope's ability to capture fast-changing signals.
3. Number of Channels: If you need to measure multiple signals simultaneously, opt for an oscilloscope with multiple channels. Dual channel oscilloscopes are suitable for basic measurements, while four channel oscilloscopes offer greater flexibility for complex applications.
4. Portability vs. Performance: Decide whether you need a portable or benchtop oscilloscope. Handheld oscilloscopes are convenient for field use, while benchtop oscilloscopes offer advanced features and larger displays for in-depth analysis.
5. Price and Budget: Oscilloscopes come in a wide range of prices. Set a budget and look to buy an oscilloscope that offers the necessary features and performance within your price range. Remember that investing in a quality oscilloscope can save you time and money in the long run.

Shop Oscilloscopes and Accessories at RS Philippines

RS Philippines offers a wide selection of oscilloscopes, probes, and accessories to meet the needs of professionals and hobbyists alike. Our inventory includes everything from portable handheld oscilloscopes for field use to high-performance benchtop models for laboratory applications. We also carry a variety of adapters and oscilloscope carrying cases to enhance your measurement capabilities.

Our commitment to quality and competitive pricing ensures you get the best value for your investment. Browse our extensive online catalog, add the desired items to your cart, and proceed to checkout. We offer secure payment options for your convenience.

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