Hydraulic pumps are devices that are used to generate energy in different machines. The pump takes in a fluid and uses the force of the fluid to produce energy that is used to power machines while the fluid is released. In this manner, the mechanical energy of the fluid is converted to hydrostatic energy. The mechanical action of the pump creates a vacuum and lets the atmospheric pressure to force the liquid from the reservoir into the duct. After this pressure is created inside the system, the fluid is forced out of the system.

The global industrial safety sensors market is growing, owing to the increase in the awareness of industrial safety and maintain safety in work environment. Also, strict government safety policies followed by all plants have helped the market to grow. Industrial safety sensors comprise three products such as industrial safety curtains, industrial safety laser scanners, and industrial safety edges. These systems detect human presence and obstacles within the field/perimeter created to safeguard the work environment. These devices are configurable based on the applications of end users.

Optical coatings are a single layer or multiple thin layers of various materials used on optical devices and components. The optical component, which is being coated, is called as a substrate. Optical coatings are deposited in high vacuum by using the resistive heat, ion-assisted deposition, or electro-beam deposition technologies. Optical coating materials consist of various metals such as aluminum, gold, silver, chromium, nickel-chromium; semiconductors such as silicon and germanium; and dielectrics such as sulfides, fluorides, and oxides.

A microphone converts sound into an electrical signal. Microphones have wide applications in hearing aids, automotive, telephones, concert halls, public events, radio, and television broadcasting. Different microphones such as dynamic microphones, condenser microphones, and piezoelectric microphones are currently in use. MEMS microphones are also called silicon microphones. MEMS microphones can sense audio signals in a way similar to electret condenser microphones.

Microwave ablation is an emerging technique in the overall tissue ablation market. The technique provides quicker ablation of large and small tumors and is used for the treatment of inoperable tumors (tumors that cannot be treated surgically). Several antennae that are used to perform microwave ablation are small, and designed with precise targeting power to prevent healthy tissues from damage. Microwave ablation is widely used in treating liver, kidney, lung, and breast cancers.

Military fitness equipment constitutes machines for workout and devices that help in monitoring soldiers' physical exercises. It helps in improving the stamina, developing muscular strength, and joint flexibility of military personnel and maintaining mental strength and agility.

Machine tools play a dominant role in the manufacturing industry and are part of almost every metal processing application. They are used for cutting and shaping metals and other materials to the specification provided by the product manufacturers. The machine tools help to process and manufacture critical components with utmost accuracy and ease. Based on the criticality of the operation, conventional or computer numerical control (CNC) machine tools are used.

A sensor is a device that measures or responds to physical changes in the environment and converts the signals appropriately. Sensors that use magnetic fields to sense changes in the environment are known as magnetic field sensors. The applications for magnetic sensors mainly include speed sensing, motion sensing, and direction sensing. These sensors have found application in different sectors such as the automotive, wireless and consumer electronics, industrial, military, energy, medical, and data processing. Non-optical sensors essentially measure forms of mechanical stress over the subjects and do not use light as a medium.

An OLED emits light in response to an electric current. In an OLED, the emissive electroluminescent layer is a film of organic compound, which is responsible for the emission of light on application of electricity. OLEDs are used to create digital displays in various electronic applications such as TV screens, PC monitors, mobile phones, and gaming consoles. An OLED can display deep black levels on screens and is lighter and thinner when compared to a light-emitting diode (LED). An OLED achieves a higher contrast ratio than an LED in low ambient light conditions such as a dark room. The following exhibit represents the history and evolution of OLED.

An optocoupler is essentially a passive optical component that can split or combine optical power transmission data from optical fibers. Furthermore, the optocoupler is designed to transfer electrical signals through light waves to enable coupling with electrical isolation between input and output. An optocoupler primarily prevents the fluctuation in voltages, from damaging or distorting transmission components on both sides of the circuit. An optocoupler has a light source, mostly near a LED that converts the electrical input signal into light, a photosensor, and a closed optical channel that detects incoming light and regulates electric current flowing from an external power supply. The sensor can either be a silicon-controlled rectifier, a photoresistor, a phototransistor, a photodiode, or a triac.