This section provides an overview for digital storage oscilloscopes as well as their applications and principles. Also, please take a look at the list of 17 digital storage oscilloscope manufacturers and their company rankings. Here are the top-ranked digital storage oscilloscope companies as of November, 2024: 1.PROMAX Test & Measurement SLU, 2.Crown Electronic Systems, 3.Mextech Technologies Pvt. Ltd.
Table of Contents
Categories Related to Digital Storage Oscilloscopes
A digital storage oscilloscope is a measuring instrument that converts changes in electrical signals over time into digital data, records them in its internal memory, and presents them on a display.
Unlike testers, which only measure voltage or current at a single point in time, oscilloscopes can observe the period/frequency of an electrical signal, the rising edge of a signal, and the time/phase difference between multiple signals.
Oscilloscopes are broadly classified into digital storage oscilloscopes and analog oscilloscopes. While analog oscilloscopes project electrical signals onto a cathode-ray tube in real-time, digital storage oscilloscopes, which are used here, collect information as "points" obtained by sampling electrical signals at discrete time intervals and display pseudo waveforms.
Oscilloscopes are measuring instruments used to observe electrical signals, such as voltage and current, in electrical circuits as waveforms with the horizontal axis of time. They are used to verify and debug the operation of industrial and consumer equipment during development, and to analyze the cause of product failure.
Digital storage oscilloscopes convert electrical signals into waveforms after data processing, such as A/D conversion. As a result, they used to have a disadvantage in terms of real-time performance compared to analog oscilloscopes.
However, since 2000, the screen update rate has been improved to a level that does not interfere with practical use. In addition, since the price of digital storage oscilloscopes has gradually decreased, they are primarily used nowadays.
Digital storage oscilloscopes use an attenuator to adjust the sensitivity of the input signal, an amplifier to optimize the amplitude, and an A/D converter to convert the signal to a digital value. The digital value is recorded in the recording memory as the data of a single point in the waveform.
The recording memory has a FIFO (first-in-first-out) memory structure. When the recording memory is full, the oldest data is discarded and new data is written. As a result, the recording memory is always kept up-to-date with the latest data.
Writing from the A/D converter to the recording memory is controlled by the trigger circuit. When writing to the recording memory is stopped by a signal from the trigger circuit, the waveform record, which is a collection of data for each point stored there, is transferred to the display memory. Based on the data in the display memory, the signal waveform is displayed on the oscilloscope display.
When the trigger circuit signal immediately stops the acquisition of a new signal, the waveform record stored in the recording memory is that before the trigger signal. This ability to observe input signals prior to the trigger signal is one of the features of digital storage oscilloscopes and is called a pre-trigger. With analog oscilloscopes, it is difficult to capture waveforms before the trigger signal because the sweep of the bright line starts after the trigger signal is received.
When selecting a model, it is important to use an oscilloscope with sufficient specifications for the measurement contents. Specifically, the following points should be considered:
In addition to the basic use of digital storage oscilloscopes for waveform observation, their applications are expanding to include timing verification, waveform analysis, and compliance testing. On the other hand, the higher the performance required, the higher the price will inevitably be. Therefore, there is an increasing need to select a model with functions that match the intended use.
Since digital storage oscilloscopes record input signals as digital data in the recording memory, waveform analysis using the data in the recording memory, for example, frequency analysis of signals by FFT operations, can also be performed. Furthermore, the data can be output to an external memory device (USB memory, etc.) for analysis and data storage using a PC.
Digital storage oscilloscopes may observe incorrect waveforms if the sampling interval is too long compared to the frequency of the input signal. This is called "aliasing." To prevent this, it is necessary to acquire waveform data at a sampling frequency that is more than twice the maximum frequency of the input signal.
*Including some distributors, etc.
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Teledyne LeCroy was founded in 1964 and is headquartered in Chestnut Ridge, New York, with sales, service, and development subsidiaries in the US and throughout Europe and Asia. The company serves a wide variety of industries including semiconductor & computer, consumer electronics, automotive, and telecommunications. The company’s product categories include oscilloscopes, electronic test equipment, protocol analysis solutions such as SATA and USB devices, modular data acquisition devices, and sensors and calibrators. The company provides services such as SSD testing, automotive and device interoperability testing, and technology training.
Rohde and Shwarz, headquartered in Munich, Germany, is a technology business that creates, develops, and promotes innovative information and communication technology products for professionals. Customers all over the world rely on Rohde & Schwarz and its cutting-edge solutions in the test & measurement, secure communications, networks & cybersecurity, and broadcast & media areas. They were created in 1993 and have regional hubs in Asia and the United States.Rohde & Schwarz has invested heavily in emerging technologies such as artificial intelligence, the industrial internet of things (IIoT), 6G, cloud solutions, and quantum technology.
Keysight Technologies, Inc. was founded in 1939 and headquartered in Santa Rosa, California. Keysight is a global developer and manufacturer of electronic design and test solutions to communications, networking, aerospace, defense, and government, automotive, energy, semiconductor, electronic, and education industries. Keysight’s communications solutions group solutions include electronic design automation software; radio frequency and microwave test solutions, hardware and virtual network test platforms and software applications, as well as optical laser source solutions. Keysight’s electronic industrial solutions group offers various design tools and verification tools. Keysight offers product support, technical support, and training and consulting services. It sells its products through direct sales force, distributors, resellers, and manufacturer's representatives.
NR Electric Co., Ltd., a subsidiary of NARI Technology Development Limited Co., established in 1995 and headquartered in Nanjing, Jiangsu, China, is a manufacturer of power system protection and control solutions. The company’s product portfolio comprises phasor measurement, power grid monitoring & controls, digital substations, stability control systems, and accessories such as test blocks, interposing relay sets, operating relays, and auxiliary relay sets. These products are used in the power industry to offer various solutions including power generation, transmission systems, distribution networks, and industrial consumers in the power industry.
Yokogawa Test & Measurement Corporation was founded in Japan in 1954. Yokogawa currently serves a wide array of industries including the aerospace, automotive, consumer electronics, semiconductor and telecommunications industries with both hardware and software solutions. Among Yokogawa’s suite of products are oscilloscopes, voltage probes, power analyzers and meters, data acquisition tools, optical test equipment, a wide variety of handled meters, calibrators, and testers; analog instruments, and manometers.
Mextech Technologies Pvt. Ltd., established in 2013 in India, is a specialized manufacturer of precision testing and measuring tools and equipment. The company's range of portable and professional measuring products includes a wide range of handheld water activity meters, coating thickness gauges, analog clamp meters, and digital force gauges. Mextech Technologies Pvt. Ltd.'s products are used both by individual trade professionals, companies, and research organizations. The company also offers direct sales and delivery, maintenance, repair, and support services.
Promax Test & Measurement SLU, founded in 1963 and based in Barcelona, Spain, is a manufacturer of telecommunication instrumentation and electronics equipment. The ISO 9001-certified company stocks products like digital modulators for broadcast, earth resistance meters, and optical fiber fusion splicers used to provide testing solutions for satellite, cable, and digital terrestrial television. It stocks over 200 products at its Barcelona facility, with 18 calibration centers and several service centers worldwide. It produces on-demand PCB circuit boards and electronic equipment and offers software development, training, and industrial design services.
Crown Electronic Systems, established in 1984, operates as a manufacturer, wholesaler, and exporter of a diverse assortment of precision testing and measuring instruments and is headquartered in New Delhi, India. The goods manufactured by the company are utilized throughout several sectors within the electrical and electronic business. The company's proficient engineers have expertise in comprehending consumers' requirements and delivering tailored solutions to meet their wants. The organization is at the forefront of production due to its unwavering devotion to quality, punctual delivery, and customer-centric attitude.
Huatest, founded in China, is a manufacturer of digital storage oscilloscopes. The company's product portfolio includes Digital Force Gauges, Digital Torque Meters, Lamp and Cap Torque Meters, and Sound Level Meters. The company uses its own patent to produce oscilloscopes and serves markets such as Medical Devices, Education and Research, and Electronics and Semiconductor. It also provides customer services, technical support, and training to assist customers in optimizing oscilloscope usage.
GW Instek or Good Will Instruments is a Taiwanese instrument maker founded in 1975. GW Instek has over 300 product lines, which include Oscilloscopes, Spectrum Analyzers, Signal Sources, Basic Tests and Measurement Instruments, Safety Monitoring Systems, and more. Leading manufacturers choose them as their test and measurement provider. GW Instek has become the leading brand in the electronic test and measurement industry. They help electronic industries reduce testing costs and increase competitiveness. GW Instek has subsidiaries in five countries and is sold to more than 80. Their mission is to reduce total costs and create customers value from cost savings.
Elspec Ltd., founded in 1988 and headquartered in Hefa, Israel, is an electrical power quality equipment designer and manufacturer. The company's products include fixed, mobile, and handheld electrical power quality analyzers, PQ software, and a range of real-time power factor correction systems. It is also the provider of Sapphire, an open, programmable platform that offers a unified experience across all data sources and with all power-quality devices for data exploration, analysis, and visualization. The company has installed solutions that stop light flicker in retail electrical systems and mitigate voltage fluctuations across excavation equipment in open mine pit grids.
Fujian Lilliput Optoelectronics Technology Co., Ltd., established in 1990 and headquartered in Fujian, China, is a manufacturer that specializes in test and measurement development and manufacturing. The company’s products include oscilloscopes, waveform generators, digital multimeters, power supplies, and analyzers. It also offers services related to the installation, maintenance, and repair of its products. Its oscilloscopes have a high sample rate with deep memory and a high waveform capture rate. It provides test and measurement equipment to a wide range of industries, including but not limited to electronics manufacturing, telecommunications, aerospace, automotive, and education.
Elab Engineering Equipments, founded in 1985 and headquartered in Ambala, India, is a manufacturer and supplier specializing in educational laboratory equipment. The company's main effort is on designing and producing a comprehensive range of scientific instruments, laboratory setups, and training kits, crucial for practical learning in educational institutions. As a key player in the education sector, Elab Engineering Equipments' products cover fields such as physics, chemistry, biology, and engineering. With an assurance to hands-on learning and quality, the company empowers educators and students globally, solidifying its status as a principal provider of advanced laboratory solutions.
TEKTRONIX, INC., founded in 1946, is a manufacturer of measurement solutions used in 3D sensing, EMI/ EMC testing, high-speed serial communication, material science engineering, and Wireless & RF testing. The products include oscilloscopes & probes, signal generators, margin testers, multimeters, and analyzers. The company's products are used in advanced research, aerospace & defense, automotive, power semiconductor, and medical industries. The Bracknell Berkshire company offers calibration, repair, asset management, package assembling, and testing services following NEMA, HAlT & HASS, environmental, and shock-vibration testing.
OHM Technologies, established in 2003, is an Indian-based manufacturer and distributor of scientific electronic equipment. The company's product range encompasses trainer kits, educational trainer kits, and laboratory trainer kits. The company also offers analog and digital electronics, and optoelectronic devices, among others. These products serve various sectors, including education, pharmaceuticals, chemicals, and research. With advanced CAD/CAM facilities, the company designs products that align with current market demands. OHM provides installation and operational training along with on-site support to clients locally and in international markets such as Asia, Africa, the Middle East, and beyond.
TEXIO TECHNOLOGY CORPORATION has been in operation in Japan for over 60 years. TEXIO specializes in custom orders of a variety of different products including power supplies. TEXIO also specializes in DC power supplies, oscilloscopes, multimeters, function generators, and safety testers.
ATICO Export is a scientific laboratory equipment supplier that was established in 1952 and is headquartered in Ambala, India. The company provides a wide range of educational, engineering, research-lab and-civil lab scientific laboratory equipment, including analytical instruments, laboratory furniture, and consumables. Its products such as alternative energy equipment, applied mechanics equipment, automatic control system, automobile and thermodynamics engineering models, autotronics system and bio-process tools are used by a number of schools, colleges, and research institutes in India. The company also provides a range of services, including installation, repair, and maintenance.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | PROMAX Test & Measurement SLU |
16.3%
|
2 | Crown Electronic Systems |
9.2%
|
3 | Mextech Technologies Pvt. Ltd |
8.5%
|
4 | TEXIO TECHNOLOGY CORPORATION |
7.8%
|
5 | Yokogawa Test & Measurement Corporation |
7.8%
|
6 | Teledyne LeCroy |
6.5%
|
7 | Rohde & Schwarz USA, Inc. |
5.9%
|
8 | TEKTRONIX, INC. |
5.9%
|
9 | OHM Technologies |
5.2%
|
10 | Elspec Ltd. |
3.9%
|
Derivation Method
The ranking is calculated based on the click share within the digital storage oscilloscope page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
India | 4 | 30.8% |
United States of America | 3 | 23.1% |
China | 2 | 15.4% |
Japan | 2 | 15.4% |
Spain | 1 | 7.7% |
Taiwan | 1 | 7.7% |
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