(NewTek: Pennsauken, NJ) -- NewTek GAR series spring-loaded gage heads are used in automated dimensional gaging applications as part of inline inspection processes where the sensor probe must move out of the way between readings. The probes of these LVDTs extend when taking dimensional measurements, then retract to their original position to avoid damage to the sensor and prevent damaging the next conveyed product.

In manufacturing conveyor lines, these air-extend/spring-retract gage heads conduct tolerance checks as part of quality assurance measures. The LVDTs provide dimensional feedback to verify whether parts have any variance in size and other physical properties. Tolerance checks are important to maintain product quality from lot to lot throughout manufacturing cycles. Machine manufacturers and quality control departments often use these sensors for “go/no-go” inspection of complex mechanical parts.

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