• It uses non-contact type measurement techniques. It has the ability to measure levels without making physical contact with the process material.
• They have no moving parts.
• The reliability of the reading is unaffected by the change in the composition, density, moisture content, electrical conductivity or dielectric constant of the process fluid.

Despite being a commendable invention, it has some flaws of its own :

• It is not suitable for use in all applications. If the product gives off vapour or if there is foam on the surface, sound waves get scattered and the sensor does not receive a signal that is able to process accurately.
• Temperature compensation is crucial for the measurement.
• Many interferences affect the strength of the echo that the sensor receives. Echo can get weak due it dispersion or absorption.

If operated properly and in an educated manner, it can serve numerous important purposes and can work in various conditions. For example, to allow the operating temperature to stabilize from the warm-up-drift. Nevertheless, an ultrasonic level sensors is a masterpiece in its own ways!

In bottling plants, it takes atleast a few dozens of micro-switches to fill, cap and package the bottles. In washing machines, be it on/off controls, controlling the wash/rinse/spin cycles or managing the dryer, all these functions are managed by these tiny devices. In high speed printing presses, these allow newspapers to be printed at lightning speeds.

A micro-switch is basically an electric switch that is actuated by very little physical force. It is made possible by the use of a tipping point mechanism sometimes called an “over center” mechanism. Switching happens reliably at specific and repeatable positions of the actuator, which is not necessarily true of other mechanisms. They are very common due to their low cost and durability, greater than 1 million cycles and up to 10 million cycles for heavy duty models. This durability is a natural consequence of the design.

Peter McGall who was an employee of the Burgess Battery Company invented micro-switches. He started the company “Micro Switch” and this trademark has become a widely used description for snap-action switches.

Without these countless micro switches working all around us everyday, things would have been entirely different.

Frequent maintenance and adjustment using a couple of needle-nose pliers for quick bend and fix is any day a better option than swapping out the entire switch every now and then. Only because it makes a tempting clicking sound, it is, in no way, a good news for any gamer out there.

Microswitches snap close rather than closing smoothly like a leaf. A tiny movement is enough to cycle the switch from open to close in the case of a leaf switch as it doesn’t require resetting

Microswitches are useful in other departments than home-arcade-building and vintage-arcade-preservation. Those other departments are what they are made for.

So unless you are gamer, micro switches are the way to go in the long run.

Each fiber carries several independent channels, each using a different wavelength of light. This is known as wavelength-division multiplexing (WDM). The current laboratory fiber optic data rate record is held by Bell Labs, France. It involved multiplexing 155 channels each carrying 100 Gbits/s over a 7000 km distance.

For short distance applications, such as a network in an office building, fiber-optic cabling can save space in cable ducts. This is because a single fiber can carry much more data than electrical cables such as Ethernet wires. Fiber is also immune to electrical interference and there is no crosstalk.

Fibres come in different varieties, two of which are Glass Fibres and Plastic Fibres. Glass fibres are threads pulled out from molten glass. These are extremely flexible and very sturdy. Glass fibres are cheap to manufacture, have high carrying capacity and offer less signal degradation. Plastic fibres in comparison absorb more light than glass.

Plastic fibres have high bandwidth due to larger core size, are easier to integrate with existing systems and can work with some scratches and contamination. Plastic fibres have stricter distance limitations when compared with glass fibres. This makes them ill suited for long distance communications.

These sensors use ultrasonic sound waves to sense the level of liquids, solids or powders in air based containers, tanks and vessels of all sizes and shapes.

Epsilon offers a complete line of standard models of advanced ultrasonic level measurement sensors for liquids and solids. Epsilon sells cost effective, ultrasonic level transmitters for measuring and monitoring liquid levels in open and closed tanks. Its small size makes it super compact, combining sensor and electronics in one housing. Epsilon guarantees high quality and performance of its level instruments. Epsilon also promises best price for its all products.

Laser Sensors accurately detect small targets such as weld nuts and mounting clips. They have a much longer sensing range than sensors that use standard visible red or infrared light. Laser systems are used where detection of small objects or precise positioning is required. Due to the small angle of divergence long ranges of up to 60 meters can be achieved.

Epsilon’s sensors and scanner products satisfy diverse dimensional measuring applications for industrial automation and advanced research. Epsilon’s precision Laser sensors systems can be ideal for collision avoidance, level measurement for liquids and solids, conveyor belt profiling, proximity detection, positioning and equipment monitoring, or even altimetry applications.

Epsilon range of photoelectric sensors and monitoring equipment includes:

• Industrial Sensors
• Photoelectric Switches
• Inductive Sensors
• Capacitive Sensors
• Ultrasonic Sensors
• Distance Sensors
• Complex Sensors
• Light Grids
• Multi Dimensional/Multi Functional Sensors

Epsilon employees an excellent R&D team, which is instrumental in development of outstanding technology. Epsilon has been providing different types of photoelectric sensors. Epsilon’s products facilitate the users to reduce the cost of operation, enhance the efficiency of work, and increase the quality plus the extra value of products.

• Cut labour costs, and increase efficiency and profits by providing latest technology.
• Provide power efficient and low maintenance machinery for industrial use.
• Replace human operators in tasks that involve hard physical or monotonous work
• Replace humans in tasks done in dangerous environments.
• Perform tasks that are beyond human capabilities of size, weight, speed, endurance, etc.

Automation is very necessary to sustain in today’s world, where cutting, efficiency and time management cost is important. It is very necessary to first determine the level of automation required, and the type required and then implement the same.  Epsilon is a company providing automation facilities to many industries, and has years of experience in this field.

Epsilon offers these fibers in two grades, both with superior optical properties for improved transmission. The core of both is made of acrylic polymer PMMA (polymethyl-methacrylate) and is sheathed with a special thin layer of fluorine polymer which has a lower refractive index than the fiber core.

These fibers were considered to provide higher transmission in the visible region of the spectrum. They can be used for a wide range of applications, from general industrial light guides to short distance data transmission. Optical grade fibers are capable of transmitting light as far as 80 meters. The fiber is tough and flexible, but is not designed to bear loads.

Optical fibers are well known as fiberscopes for imaging applications and as light guides for a wide range of non-imaging applications.

There are three types of borescopes & Epsilon offers all the types:

Flexible borescopes : A flexible borescope includes a bundle of optical fibers which divide the image into pixels. It is also known as a fiberscope and can be used to access cavities which are around a bend.
Video borescopes : A video borescope or “inspection camera” is similar to the flexible borescope but uses a miniature video camera at the end of the flexible tube.
Rigid borescopes : Rigid borescopes are similar to fiberscopes but generally provide a superior image at lower cost compared to a flexible borescope. Rigid borescopes have the limitation that access to what is to be viewed must be in a straight line. Rigid borescopes are therefore better suited to certain tasks such as inspecting automotive cylinders, fuel injectors.
All Epsilon borescopes use fiber optic illuminators in the scope body.