Pick the right adhesive! We need to know the importance of adhesives, many people do not pay attention to the selection of adhesives, the natural frequency of the accelerometer is determined by the degree of coupling of the bond, so it is important to choose the right adhesive. The weight of the accelerometer is also something we need to consider, the frequency and bandwidth of the test, the amplitude and temperature of the test, the limitation of the sinusoidal curve and the random vibration presented in the test. However, in this case, engineers and technicians will select the adhesive based on the test requirements.
The adhesives commonly used in accelerometer devices include cyanoacrylate, magnets, double-sided tapes, paraffin, thermal adhesives, etc., and the key to the selection of these adhesives is that they can play a good role, and the amount of adhesive used in the bonding process plays a key role in the frequency response of the accelerometer. We should try to use the least amount of adhesive on a small piece of film to make it have the best frequency response and transmission.
Before installing the sensor, it is necessary to use a hydrocarbon solution to clean the surface of the device, and then evenly apply the adhesive that needs to be used to the surface of the adhesive accelerometer, pay attention, not too thick and not too thin, otherwise it will affect the bonding effect. There are many things to pay attention to when using hot adhesives, the most important of which is the setting time of the hot adhesive during the installation process.
When bonding the device, do not use the adhesive when the maximum limit temperature is close to it, and should delay it for a while. Otherwise, the adhesive itself will be damaged and the tensile strength of the adhesive will be reduced.
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