What is the two?

Bathy is a material that serves as a medium for the transmission of sound waves. The gel bathroom is usually a form of water -based substance or paste composed of oils or chemicals similar to grease. It is located in physical contact with the converter that receives sound signals in the air and then covers it on electrical pulses for transmission. Microphones and audio testing devices use gel or dry bindings to facilitate. Acoustic binding is important for ultrasonic testing because air is a relatively bad medium for the transmission of sound waves in general compared to solids. The energy level that ultrasonic frequencies carry when carrying air is dramatically decreases, so these materials are to minimize this loss.

Many conventional substances can be used as a binding, including engine oil or even hair gel. This is because even a very thin layer of air between the converter and the sound pattern will have strong effects on the attenuation and almost any solidwill reduce. Electric components can generate a lot of heat, but specially formulated bonds are designed to adapt.

ultrasonic bonds in the industry of nuclear and healthcare facilities are a step further by requireing materials that have low halogen or sulfur compounds at fewer than 50 pieces per million (PPM). Propylene glycol, the same material used in the automotive antifreeze, is another specialized compound. It is chemically unreactive and can withstand temperatures of 200 ° Fahrenheit (90 ° Celsius) before thermal decay. The optical binding fills in another unique need. Often referred to as an index corresponding to the gel, it is used to minimize changes in the refractive index, which occurs where the fibers meet, which can reduce signal transmission.

The main features sought in good fasteners are its andCustom properties, corrosion inhibition and surface wetting, so it binds well. The time for which it remains wet, known as the drying time, is also important, as well as the temperature levels that can withstand and its uniformity. The unique aspect of a binding gel is that it contains a fluorescence stopping dye that shines in the ultraviolet zone that is used to monitor the levels of coverage.