Don Salladin Engineering Sales Representative Ellsworth Adhesives
Tom Steucek Engineering Sales Representative Ellsworth Adhesives
Eric Traxler Engineering Sales Representative Ellsworth Adhesives
Electronic sensors are the go-to data input device for many industries and tasks. Sensors are often part of mission-critical systems where they must be protected from adverse operating conditions. Engineers are commonly challenged to find a low-cost, manufacturing-friendly method of incorporating sensors into a system that will function in a harsh environment while meeting demanding performance requirements.
Protecting Vulnerable Sensors
Sensor-based systems are required to be both accurate and sensitive. Therefore, protecting a sensor is imperative to creating a reliable, accurate product without compromising instrument sensitivity. This narrow equilibrium is easily upset by poor assembly methods, mechanically constraining hardware, or a hostile environment.
Vibration/shock; compression; corrosives (road salt); weather; temperature
Thermally conductive; RF permeance
Disposable (low cost)
Monitor patient temperature changes during heart surgery
Contaminants; fluid ingress
Sterility (adhesive unaffected by biocides)
Extreme temperatures; weather
Instrument exposure to air flow
Choosing the Right Adhesive
Adhesives simplify assembly processes, often replacing costly or vulnerable hardware like rivets and welding. Benefits include:
Reduced assembly times
Eliminating costly curing equipment
Decreased part count and material costs
Simplified product designs
Sensor components that generate heat will benefit from a thermally conductive adhesive, which can route excess heat to an outer case or heat sink to protect sensitive equipment. Innovative and customizable solutions exist as well, such as:
Electrically conductive fillers that protect against over-currents in a circuit
Casting resins used instead of individual component and PCB housings
Functionally graded or layered compounds that create a laminated composite, with each material imparting its own mechanical, thermal, or electrical properties
No matter the adhesive, Ellsworth Adhesives’ global network of Glue Doctors® are equipped with the experience and knowledge to find the right solution for your application.
To learn more about smart sensor solutions, download the white paper.