Pressure sensor silicon gel potting solution | SIGEL 1806 | ELAPLUS
Intelligent equipment upgrade, higher packaging requirements for pressure sensorsWith the rapid development of drones, humanoid robots, robotic dogs, and CNC precision equipment, pressure sensors have become key sensing units widely used for:Air pressure/altitude detection Force feedback and tactile perceptionHydraulic and pneumatic pressure monitoringThese new application scenarios generally have the following characteristics:Equipment miniaturization and highly integrated structureContinuous vibration and impact during operationExtremely high requirements for measurement stability and long-term reliabilityIn this context, the internal sealing material of pressure sensors is no longer just a simple protective material, but a key factor that directly affects the accuracy, stability, and service life of the sensor.Industry challengesThe Three Core Difficulties in Sealing Pressure SensorsChallenge 1: Devices are extremely sensitive to stressPressure sensors typically contain MEMS chips, sensitive membranes, and fine lead structures inside.If the hardness of the sealing material is too high or the curing shrinkage is large, it is easy to generate internal stress after packaging, resulting in:zero driftDecreased sensitivityLong term stability deterioratesChallenge 2: Vibration and impact under dynamic working conditionsIn applications such as drones and robotic dogs, sensors need to withstand long-term:high-frequency vibrationInstantaneous impact accelerationStructural stress changes caused by repeated start stop cyclesThe sealing material must have good buffering and shock absorption capabilities, rather than simply “filling”.Challenge Three: Balancing Environmental Protection and Signal StabilityIn complex environments, potting materials need to achieve both:Moisture, dust, and pollution preventionLong term reliable protectionAt the same time, it cannot interfere with the transmission of pressure signals, which puts higher demands on the flexibility and stability of the material.SolutionFilling Scheme of SIGEL 1806 Low Stress Silicon gel Pressure SensorSIGEL 1806 is a two-component silicon gel material specially designed for precision electronic and pressure sensor packaging, which can effectively meet the above challenges. Core advantages of the plan:1: 1 Two component silicon gel systemSimple ratio, suitable for manual or…
