Process Toolkit - Inspection, Testing & Programming

Electrical/Electronic Testing	In-line electrical or electronic testing is a useful means to minimize defects during assembly. Most electrical or electronic features can be effectively tested with the assembly resting in the transport system. However, some delicate tests require that the assembly be removed from the transport system to attain reliable fixturing and probing. Electrical testing is frequently used to verify voltages within an assembly.
Feature/Part Gaging & Verification	Gaging and verification can be performed with mechanical probes, high-accuracy sensors, or machine vision. Machine vision is typically the most flexible and most robust, provided that the lighting is consistent and fixturing and mounting is secure and rigid. High accuracy sensors become important when extreme accuracy is required. Mechanical probes are useful where imaging problems or reflectivity make the other technologies troublesome.
Leak Testing	Pressure (vacuum) decay testers are excellent for detecting gross leakage in products which are expected to be sealed from water intrustion. Testing can be performed by placing products within a chamber, by passing a needle through an elastomeric membrane, or by hooking the open systems to a nozzle.
Magnetic Testing	Magnetic testing can be performed with custom coils and electronics, or high accuracy sensors. For simple field verification, custom coils are an inexpensive means to verify the presence and approximate strength of a field. More elaborate sensors, traceable to NSTB, are also available where higher accuracy is required.
Performance Testing	Performance, or functional, testing involves exercising the product automatically, measuring important parameters, and verifying these parameters against the product specification. Many performance tests require a custom auxiliary device to hold and exercise the product.
Product Programming	In-line product programming allows for the configuration of smart products during the final assembly process. This allows the use of generic sub-assemblies which are configured as needed, minimizing inventory issues. With in-line product programming, a smart product can be configured through either a direct electrical connection, or a non-contact connection. Non-contact connections can include any wireless or light-based transmission scheme.

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