Measurement Sensing & Inspection

The means to measure most things ...........

The terms Quality Control, Process Control and Inspection are banded around regularly but often their relationship is not as clearly understood as they should to make the best choices on both what and how to measure.

Naturally the issue is one of control. Whether this entails an automatic feedback control device or that function is performed by an operator (see “Control Explained”).

Typically a sensor is a device with an electronic output but no display. Our general definition of a gauge is a combination of sensor and display that shows a physical unit (e.g. mm, kg, m/min, kp, PSI, deg.C etc.).

In terms of measurement they are equivalent and they differ only how the output is used to control the process or quality.

Therefore the best device should be selected on the basis of what should be measured and method the sensor obtains that measurement with.

We are happy to assist in your selection ...... Email us: info(at)qualityincontrol.com

Click on one of the sections below or choose what you want to measure from the menu on the left.

Need help selecting ...... Email us: info(at)qualityincontrol.com

Laser Micrometer / Laser Scanning gauge

Highly precise and versatile. Ideal for measuring Outside Diameter (OD), Thick-ness a reference, Width, Gap and Position. Several can be combined to measure in two axis or control Wall Thickness. Rugged.

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Using Laser it measures speed and length of most materials to 0.05% accuracy.
Soft, hard, hot or uneven surface have no effect on the measurement result.
Suitable for speeds up to 3000 m/min.

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Non-contact Length and Speed gauge

Laser Triangulation Distance sensors

Laser Profile sensor / scanner

Come in ranges from 20mm to several metres with resolution and accuracy typic-ally inversely proportional. Great for Thickness or Distance measurement. Can measure most materials and surfaces.

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These project a laser line onto the surface and have one or two oblique array cameras that determine the shape and position of the visible laser line. Very effective where large areas need measuring or digitising.

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Cross-section Vision Inspection

Ultrasonic Wallthickness gauge

Using either a flat-bed scanner or a camera the Vision Profiler can inspect complex cross-sections quickly and accurately. Suitable to measure soft and even slightly deformed sections. Automatic tolerancing.

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Typically measure the wall-thickness of plastic products such as cables, pipes and tubes. Can measure multiple layers under some conditions. Require a coupling media such as water, gel or oil.

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Spread Beam Laser gauge

Similar to Laser Micrometer but uses a spread laser beam that project a shadow onto the receiver. Very fast and often used for flaw detection on fast running lines. Has
typically only a small measuring field.

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Ultrasonic Distance sensor

Same as above but designed to measure distances in air / water (similar to a sonar).
Ideal for larger distances such as level sensing etc. that do not requires highest resolution or accuracy.

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I.e. Gauges & Sensors that measure process parameters and are for the integration into your own control system.