Force = Mass x Acceleration This equation is the basis for selecting sizing shakers and determining if your shaker can perform a specific shock or vibration test. The premise is this: the more mass you put on your shaker, the less acceleration the shaker can produce. And vice-versa: the less mass you put on your […]
Force Rating Basis During Vibration Test on ED Shakers Read More »
Industrial X- Ray machine: Industrial Radiography is a modality of NDT that uses ionizing radiation to inspect materials and components with the objective of locating and quantifying defects and degradation in material properties that would lead to the failure of engineering structures. This machine plays an important role in the science and technology needed to
X ray & CT Machine Read More »
In the world of Defence, testing and analysis play a prominent role. Defence transportation involves high stakes, as it transports highly sensitive and dangerous materials. Testing of a defence transportation vehicle involves in vibration testing, shaker testing, vehicle failures, performance testing and product screening. Electrodynamics, data physics and servo hydraulics are the standard solutions, which
Understanding -Vibration Test in Defence Read More »
Active thermography is the induction of a heat flow by energetically exciting a test object. This can be done either by applying energy in a pulsed form (pulsed thermography) or in a harmonic modulated way (lock-in thermography). The propagation of the heat flow inside the object directly affects the temporal behaviour of the surface temperature.
Active Thermography Read More »
The solder ability of a substrate is a measure of the ease with which a soldered joint can be made to that material. Good solder ability requires wetting (low contact angle) of the substrate by the solder. The procedure, considered to be destructive, tests whether the packaging materials and processes used during manufacturing operations produce a component that can be successfully
Solder Ability Test Read More »
Conductive anodic filament, also called CAF, is a metallic filament that forms from an elector-chemical migration process and is known to cause printed circuit board (PCB) failures. Conductive Anodic Filament (CAF) testing helps to determine the reliability of a printed circuit board (PCB) laminate material or a finished product. With conductor spacing and overall part
Conductive Anodic Filament Testing Read More »
Conformal Coating – Conformal coating material is a thin polymeric film which ‘conforms’ to the contours of a printed circuit board to protect the board’s components. Typically applied at 25-250 μm it is applied to electronic circuitry to act as protection against moisture, dust, chemicals, and temperature extremes that, if uncoated (non-protected), could result in damage or failure of the electronics to function.
Reasons for use of Conformal Coating
Conformal coatings are used to protect electronic components from the environmental factors they are exposed to. Examples of these factors include moisture, dust, salt, chemicals, temperature changes and mechanical abrasion. Successful conformal coating will prevent the board from corroding. More recently, conformal coatings are being used to reduce the formation of whiskers, and can also prevent current bleed between closely positioned components. Conformal coatings are breathable, allowing trapped moisture in electronic boards to escape while maintaining protection from contamination. These coatings are not sealants, and prolonged exposure to vapours will cause transmission and degradation to occur. There are typically four classes of conformal coatings: Acrylic, Urethane, Silicone, and Varnish. While each has its own specific physical and chemical properties each are able to perform the following functions:
Parylene Conformal Coating Read More »
Surface Insulation Resistance (SIR) is defined as the resistance, across the surface of the base material, between adjacent conductors of a Printed Circuit Board (PCB). On a typical PCB surface there are primarily four paths for current leakage between adjacent conductors; Through the air, Through surface Contamination, Along the surface, and Through the substrate. The
Surface Insulation Resistance Testing Read More »
X-Ray- It is an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light. X-rays are like visible light waves like visible light but they have a higher energy level and therefore can pass through different materials. When an X-ray transmits rays through the human
Automated X-Ray Inspection System Read More »
A gun barrel is a crucial part of gun-type ranged weapons such as small firearms, artillery pieces and air guns. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas is introduced (via propellant combustion or mechanical compression) behind a projectile in order to
Gun Barrel Cleaning System Read More »
