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This section provides an overview for liquid level sensors as well as their applications and principles. Also, please take a look at the list of 14 liquid level sensor manufacturers and their company rankings.
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Categories Related to Liquid Level Sensors
A liquid level sensor is a sensor that can determine the type of liquid flowing in a container or piping. It can detect when liquid flow in a pipe is interrupted or when another liquid is mixed in.
It can discriminate between two types of liquids that have been measured in advance. The sensor can determine which liquid is flowing in the piping, whether it is mixed in or not, or whether neither is flowing in the piping.
Liquids, such as tap water, distilled water, alcohol, chemicals, cleaning solutions, and oil, can be detected. Some models are under development, and future developments are expected.
Liquid level sensors are small and easy to install, so they are installed on pipes and other equipment in factories. In food factories and other places where safety is important, it is critical to determine whether a liquid leaking from a pipe is water or a chemical, so some factories are installing liquid type determination sensors to help with maintenance.
Although there are only some liquid level sensors on the market today, they are needed in many areas, and we can expect to see more examples of their use in the future as further development progresses.
Liquid level sensors are new sensors, and a type that uses the difference in dielectric constant of liquids is currently on the market. Another type, currently under development, uses optical fibers.
In the type that detects differences in the dielectric constant of a liquid, the sensor part is immersed in the liquid and the dielectric constant is measured. It is possible to determine the type of liquid, determine the state of emptiness, and detect leaks. In addition to tap water, alcohol, various chemical solutions, and oil, this type can also be used for highly viscous liquids such as paints and adhesives.
The optical fiber type can be used for measurement in explosion-proof areas by using a bend-resistant optical fiber for the detection section. This type can also be used to measure liquids such as oil and gasoline, which can ignite.
Another type of liquid identification device that is still in the research and development stage but is being considered is one that determines the type of liquid based on the rate at which the temperature of the liquid rises. This device consists of a liquid type sensing section with a heating element and a temperature sensing element, and a liquid temperature sensing section. A single pulse voltage is applied to the liquid type sensing section to generate heat, and the liquid temperature is measured at the liquid temperature sensing section. The type of liquid can be determined from the change in liquid temperature before the pulse voltage is applied and after a certain period has elapsed after the voltage is applied.
*Including some distributors, etc.
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Littlefuse was founded in 1927 and headquartered in the United States. Littlefuse is a diversified industrial technology manufacturing company with customers globally. Littlefuse has products segments which are electronic, industrial, and transportation. Electronic segment products include fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, and varistors. Transportation products include blade, resettable, and high-current and high-voltage fuses, as well as battery cable protectors; fuses, switches, relays, circuit breakers, and power distribution modules. The Industrial segment offerings include contactors, transformers, and temperature sensors for use in renewable energy and energy storage systems, electric vehicle infrastructure, HVAC systems.
Massa Products Corporation, based in Massachusetts, United States, is a manufacturer and supplier specializing in ultrasonic sensor technology. Founded in 1945 it serves industries such as Oceanographic, the chemical and allied, the oil patch and mining, among others. It engineers and manufactures sonar and ultrasonic products for use in the water and air. The company is certified in ISO 9001:2015 and its products catalog includes Ultrasonic Level Sensors For Distance Measurement, Industrial Ultrasonic Air Transducers, among others.
SSI Technologies LCC, established in 1974 with headquarters in the USA, is a manufacturer of electronic sensors. The company's display product line includes level gauges, digital level sensors, pressure sensors, liquid level sensors, and DEF/Urea sensing solutions. The company's products range from heavy truck weight sensing devices to liquid level sensors for barrels and tanks. It serves many industries, including the motorcycle, automotive, mass transit, and material handling markets, among many others.
Sierra Instruments, Inc. was established in 1973 and has its headquarters in California, United States. The company is a manufacturer of flow instruments for nearly every liquid, gas, and steam application, with locations in Europe and China. Sierra's range of flow instruments includes immersible thermal mass flow meters, vortex flow meters, and thermal mass flow controllers for various applications. The company's flow controllers have applications across global industries such as oil and gas, energy management, biotech, and aerospace.
O'Keefe Controls Co., founded in Monroe, CT in 1975 is a manufacturer of precision orifices and fluid control devices used in a wide range of liquid and gas flow metering applications. The company's product portfolio includes low restrictors and regulators for precise control of flow rates, Single and multiple orifice plates for accurate flow measurement, Needle valves and flow control valves for precise flow adjustment and Gas Flow Measurement Devices. The company provides services such as Product Selection Guidance, Engineering Support, New Product Design and Development and Custom Manufacturing.
Clark Solutions, established in 1962 and headquartered in Massachusetts, United States, is a supplier and distributor of fluid handling products. The company offers a wide range of products, including pumps, valves, and instruments, among others, serving industries such as chemical processing, pharmaceuticals, and food and beverage. These industries rely on the company's solutions for precise fluid control in tasks like transferring, mixing, and flow control, ensuring the accuracy and efficiency of operations.
Takachiho America, Inc., founded in 1952, is a supplier of motion control solutions and business development services in Itasca, IL. The company has been a Takachiho Koheki Co., Ltd subsidiary since 2015. The mechanical components supplied include dampers, Conston springs, cyclonic filters, bacteria sterilizers, and level indicators used in home appliances, chip conveyors, automotive interiors, CNC machines, and medical equipment. The company offers business development services such as market research, opportunity identification, technology evaluation, and alliance partnership assistance.
The Azbil Corporation (formerly the Yamatak Corporation) aims to realize safety, comfort, and fulfillment in people's lives and contribute to global environmental preservation through "human-centered" automation. They provide their customers with timely solutions via an integrated structure that extends from planning and development to maintenance and service, capable of responding rapidly to customer needs.
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.
Bürkert Fluid Control Systems, founded in 1946 and headquartered in Ingelfingen, Germany, is a manufacturer of liquid and gas measurement and control systems. Its product range includes solenoid valves for fluid power systems, process and control valves for managing flow, pressure, and temperature, pneumatics and process interfaces for automation control, sensors, transmitters, and controllers for measuring physical and chemical parameters, and MicroFluidics solutions for precise fluid control. Its products serve diverse industries like breweries, labs, medical, and aerospace.
Seetru Limited was founded in 1949 and is headquartered in Bristol, England is a manufacturer of safety relief valves and liquid level gauges. The company offers an array of products including Pressure Relief Valves, sight gauges, and magnetic float by-pass gauges. These valves meet important international standards which include ISO 4126 and ASME Section VIII design codes as well as type test approvals from the National Board. These products have applications in industrial gas suppliers, marine, and petrochemical industries.
Locon Sensor Systems Inc., founded in 1986 with headquarters in Maumee, Ohio, USA, is a manufacturer and distributor of sensors and related accessories. The company's product line includes photoelectric sensors, inductive proximity sensors, connecting cables, fiber optic cables, and capacitive switches. These products are used in applications that include color detection, small part detection, mobile equipment, and printing machine vision. The company serves various markets, including automotive, construction, dental, medical, and commercial industries.
Sitron, started in 1978 and headquartered in Sao Paulo, Brazil, is a manufacturer of industrial measurement and control solutions used in temperature, pressure, and vibration applications, among others. Its products include hydrostatic level transmitters, flow switches, and pressure transmitters. The company’s CN series of conductive level switches come with integrated internal electronic relays within the housing, eliminating the need for a separate remote controller. In addition, the company’s HFS high-frequency limit level sensor, made using an all-stainless-steel housing, detects the level of fluids or paste-like media while being immune to build-up on the electrodes.
Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
8 | 80.0% |
|
Japan
|
1 | 10.0% |
|
United Kingdom
|
1 | 10.0% |
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