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This section provides an overview for altimeters as well as their applications and principles. Also, please take a look at the list of 29 altimeter manufacturers and their company rankings. Here are the top-ranked altimeter companies as of December, 2024: 1.Viavi Solutions, Inc., 2.SSK Military Industries, Inc., 3.AIRMAR Technology Corporation.
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An altimeter is an instrument used to measure altitude.
There are three methods for measuring altitude. Among them, the barometric altimeter, which measures altitude based on atmospheric pressure, is predominantly used. Even in small aircraft and training planes, only barometric altimeters are installed.
As atmospheric pressure fluctuates with time and location, it is necessary to calibrate the altimeter using the latest information. Caution is needed in areas where atmospheric pressure drops, such as mountainous regions.
The remaining two types of altimeters are the radio altimeter and GPS. The radio altimeter relies on a transmitting antenna and a receiving antenna attached to the underside of the aircraft. Radio waves are sent from the aircraft to the ground, bouncing back to the receiving antenna.
Altimeters are used to measure the altitude of aircraft and spacecraft. Pilots of aircraft need to constantly be aware of their current altitude, making altimeters highly valuable.
While the barometric altimeter is always in use, the radio altimeter cannot be used when the distance from the ground is too great. Therefore, it is frequently employed during takeoff and landing or when flying at low altitudes, especially in poor visibility conditions.
Aircraft are generally considered to fly well at altitudes around 10,000 meters. This figure varies depending on weather conditions and factors like engine combustion and air resistance. Altimeters play a significant role in maintaining an altitude of around 10,000 meters.
The altimeters used in aircraft are the radio altimeter and barometric altimeter. The radio altimeter uses radio waves to measure the time it takes for reflections from a target, displaying the distance. The barometric altimeter measures atmospheric pressure, converting it into altitude for display.
For mountaineering altimeters, the barometric altimeter is commonly used. When combined with a compass and a map, it helps determine the current location, aiding in pacing during mountain climbs. The altimeter also serves as a barometer, reading changes in atmospheric pressure to confirm weather patterns.
If the atmospheric pressure rises from the evening to the next morning, the weather is expected to improve, while a descent in pressure indicates worsening weather conditions.
Altimeters can be classified into analog and digital types.
It measures altitude using an aneroid barometer that senses pressure. It is simple in functionality, user-friendly, and easy to maintain. There are solar-powered altimeters available, eliminating the need for battery replacement. However, caution is required as the needle may move with slight vibrations.
It offers higher accuracy compared to analog types, suitable for quickly obtaining detailed numerical values. It utilizes the piezoresistive effect, where electrical resistance changes with pressure, and is therefore called a piezoresistive altimeter. Digital altimeters often include weather and temperature prediction features, providing comprehensive preparedness. However, most digital altimeters are battery-powered, requiring attention to battery levels.
For mountaineering altimeters, there are primarily three types: handheld, wristwatch, and app-based.
Various types can be used as a compass or map. They are compact, ensuring ample space in your belongings, and size considerations are minimal. Altimeters that can be taped to the car interior are particularly suitable for driving. Adjustable altimeters with screws allow for accurate altitude measurements.
Always worn, reducing the risk of loss, and there is no need to retrieve it from a bag. Many wristwatch altimeters are waterproof. Recently, altimeters with solar charging functions and those capable of measuring heart rates have also been introduced.
Apps with altimeter functionalities have been developed. This means that carrying only a smartphone enables you to accomplish almost everything. However, attention is required for battery levels and sufficient storage.
Altimeters come with various features depending on the intended use. For mountaineering, waterproof and compass features are crucial. Additionally, having temperature, GPS, and solar charging functions adds an extra layer of assurance.
*Including some distributors, etc.
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Viavi Solutions, Inc. is based in Arizona, USA, and is a manufacturer of network testing and measurement products that was established in 2015 following the split of the JDS Uniphase Corporation into Viavi Solutions and Lumentum Holdings. The company produces wireless network optimization or testing tools, optical fiber inspection tools, and network performance troubleshooting software. It also offers cloud-native software platforms for automation, inventory, and quality assurance applications. The company’s products are used mainly by clients in the telecom, data center, and IT industries.
Bright Medi- Weld Appliances, founded in 1972 with headquarters in India, is a manufacturer of industrial instruments and safety products. The company's products include flow meters, vaporizers, gas cutting torches, manifolds, first aid kits, and fire extinguishers. Bright Medi- Weld Appliances are used for worker safety in various industries, including the power, fumigation, paint, welding, and cement markets. Examples of the company's products include thermometers used by medical professionals, humidity meters for civil and agricultural use, and PPE harnesses, belts, and wearable anchorage points.
MICRO TEKNIK, founded in 1967 with headquarters in India, is a certified manufacturer and supplier of scientific testing and analytical instruments and equipment. The company's broad product range includes refrigeration and air conditioning laboratory equipment, automatic razor sharpeners, blood banking instruments, chemical engineering laboratory equipment, and petroleum testing instruments. The company's products are used by a range of industries, including chemical processing, process manufacturing, road works, building construction, and educational markets.
Vector Technologies, was established in 2004, is a manufacturer, exporter, trader, and wholesaler of a wide assortment of industrial instruments, equipment, test & measuring, assembly tools and NDT supplies, based in India. The company's products are used in many industries like electronics, electrical, scientific, engineering, mechanical and all kinds of process industries. Some of its products include anemometer, digital and thermo anemometer, barometers, clampmeters, infrared thermometers and many more. In addition, it is also a service provider of instrument calibration & instrument testing services, and it also provides a range of clean room application products.
HoverLabs has roots dating back to 1963 and is headquartered in Haryana, India. The company is a laboratory supplies manufacturer, exporting to over 110 countries. The company provides extensive R&D for designing, manufacturing, and packaging supplies. The company also provides customized product development, OEM support, and project management assistance. The company’s products include educational equipment, analytical lab equipment, engineering lab equipment, medical lab equipment, and other products used in the medical as well as scientific industries.
Cobham Advanced Electronic Solutions (CAES), founded in 1934, is an American manufacturer based in Arlington, Virginia, providing electronic solutions for the aerospace and defense industry. The company develops systems for defense (missile radars and electronic warfare) and civil aviation (radar installations). Its product lineup includes helix antennas with moderate to high directivity, circular polarization systems, and low side and back lobes. It also offers a range of products for missile flight instrumentation, including data acquisition systems, flight termination systems, and telemetry equipment. Other offerings include positioning systems for applications in challenging environments and radio frequency (RF) assemblies and subsystems.
Airmar Technology Corporation is a manufacturer of ultrasonic transducers and sensors that was established in Milford, New Hampshire, USA, in 1982. The company’s product lineup includes air ranging transducers for aerospace and automotive applications, and weather station instruments for gauging physical parameters such as wind direction or speed. It also offers marine transducers for use in navigation, surveying, and fishing. The company’s products are commonly used in the industrial robotics, environmental monitoring, and recreational markets.
D.D.R. INTERNATIONAL, founded in 2006 and headquartered in Haryana, India, is a manufacturer and supplier of scientific instruments and educational items. The company manufactures various instruments, including microscopes, heat exchangers, and audio visual aids. It also offers a range of educational items, such as engineering models, technical wall charts, and laboratory equipment. These products are mainly used in education sectors, including schools, colleges, and engineering institutes. The company has a wide distribution network, and exports its products worldwide.
Ajanta Export Industries, established in 1957 and based in Haryana, India, is a manufacturer, supplier, and distributor of scientific laboratory equipment. The company offers other products such as soil equipment, survey equipment, surgical microscope, slit lamp, and laboratory glassware. All of them are manufactured with high-grade components and used in physics, chemistry, and biology labs worldwide. The company abides by the quality standards and produces the products that meet these standards. Every product made is tested in the equipped testing facilities.
Swastik Scientific Instruments Private Limited., established in 2015 and located at Thane, Maharashtra is a Manufacturer and Supplier of Scientific Instruments. The company product range offered are Spectrophotometers, P H Meter Digital, Melt Point Apparatus Automatic and more. The company offered products are made in accordance to the set industry parameters.The company products are used across the markets like building, engineering for its sturdy construction, optimum performance, fine finish and longer life span.
Micro Technologies, established in 2007 and based in Haryana, India, is a manufacturer and supplier of laboratory equipment and hospital furniture. The company provides analytical, chemistry, pharmacy, and physics laboratory instruments as well as various types of microscopes, including digital, metallurgical, and stereo microscopes. It also offers medical devices, surgical instruments, and hospital furniture, such as examination tables. Certified with ISO 9001:2008, the company adheres to total quality management (TQM) principles, covering the procurement of raw materials like aluminum and steel, manufacturing processes, and the final delivery of products.
MANGAL INSTRUMENTATION is a manufacturer, retailer, distributor, and supplier of testing equipment and measuring instruments, established in 1988 in New Delhi, India. The products include ballast analyzers, chroma meters, photometric integrating spheres, digital power meters, and goniophotometers used for measurement and lamp testing. Solar power meters, light meters, haze testers, opacity esters, and digital LUX meters for light measuring and transparency testing. The company serves the aviation, defense, lighting, transport, and institutions industries with products meeting the ISTA, SATRA, ASTM, and DIN standards.
Honeywell International Ltd., a global conglomerate headquartered in the United States, is a major technology company providing a wide range of aerospace solutions since 1906. The company's product portfolio encompasses aerospace systems, industrial automation, and connected solutions for homes and buildings. Their solutions can reduce the risk for the plane accidents, designed to aid pilots in safe take-off and landing, Increase flight crew awareness, and pinpoint precise airplane location to aid landings. The advancement of urban air mobility and increase in commercial travel will challenge the modern airspace and their products offer gain visibility and control to keep flights safe.
Collins Aerospace, founded in 2018 and based in Charlotte, North Carolina, is a manufacturer and supplier specializing in actuation systems and avionics. The company's product portfolio includes composite aircraft doors, thermal management systems, and integrated cockpit solutions. These products are used in various applications, including business aviation, military and defense, and commercial and military helicopter manufacturing. The company offers services including technical support, warranty claims, and repairs while exporting its products to various countries, including South Africa, Poland, and Qatar.
Labcare Scientific, incorporated in 2011 and based in Tamil Nadu, India, is a supplier and exporter of extensive scientific laboratory equipment and instruments. The company primarily supplies industrial measuring instruments, test equipment, entomology lab gear, moisture meters, and laboratory instruments. It also provides nylon filters, LCD digital microscopes, water testing equipment, and weather station equipment. The company adheres to ISO 9001 quality standards, and its products have found application in various sectors, including industrial, entomology, and laboratory sectors.
S.L. Technologies, rooted in India and headquartered in New Delhi, has created a niche for itself by diversifying into multiple business sectors as a supplier, was established in 1998. The company meets customer needs by leveraging popular technologies such as LeaseWeb, Sectigo, jQuery, and Modernizr. It has enhanced the efficiency of BLDC controllers with maximizing energy-saving and quality improvement. In home and industrial controller for HVAC, it continues to meet customer’s ultimate satisfaction through constant technology development and improvement.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Viavi Solutions, Inc. |
26.9%
|
| 2 | SSK Military Industries, Inc. |
15.4%
|
| 3 | AIRMAR Technology Corporation |
11.5%
|
| 4 | Bright Medi- Weld Appliances. |
11.5%
|
| 5 | Techno Engineers |
7.7%
|
| 6 | SUN COMPANY |
3.8%
|
| 7 | BendixKing |
3.8%
|
| 8 | CAES |
3.8%
|
| 9 | Swastik Scientific Company |
3.8%
|
| 10 | Collins Aerospace |
3.8%
|
Derivation Method
The ranking is calculated based on the click share within the altimeter page as of December 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
|
13 | 92.9% |
|
United States of America
|
1 | 7.1% |
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TKK Works Co., Ltd.
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