How can I mount a pulse oximeter on the surface of PCB without putting too much stress?

The PCB has a pulse oximeter mounted on the surface, and it's tolerance is 0.6mm. The problem is the pulse oximeter needs to touch the bottom case at all times. How to best mount the PCB in the case without putting too much stress on the pulse oximeter? Will screws with flexible washers be all right? Sadly separating pulse oximeter from main PCB is not an option.

december 5, 2023

Put a machined guard around the pulse oximeter to keep the surface from it at about 0.2-0.3 (if it is and SMD part soldering height tolerance is about 0.2mm) and then simply screw down the resulting assembly.

Otherwise use weak springs to push the p.o. against the case, need to know the allowed stress on the body for that.

Lees verder: Medical Electrics Manufacturing

#PCB-assemblage

https://www.youtu.be/kX4gCs9szeA?si=_o1w0lNIu4HwRX7N

Olivier Smit

Oliver is een ervaren elektronica-ingenieur met kennis van PCB-ontwerp, analoge circuits, ingebedde systemen, en prototyping. Zijn diepgaande kennis omvat schematisch vastleggen, firmware-codering, simulatie, indeling, testen, en probleemoplossing. Oliver blinkt uit in het omzetten van projecten van concept naar massaproductie met behulp van zijn elektrische ontwerptalenten en mechanische vaardigheden.

How can I mount a pulse oximeter on the surface of PCB without putting too much stress?

Olivier Smit

Olivier Smit

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