# Pressure sensor assembly

**URL:** <https://forum.core-electronics.com.au/t/pressure-sensor-assembly/10851>\
**Category:** Product Questions\
**Created:** [29 July 2021 03:04 UTC](https://forum.core-electronics.com.au/t/pressure-sensor-assembly/10851 "2021-07-29T03:04:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Kai170676](https://avatars.discourse-cdn.com/v4/letter/k/91b2a8/32.png) [@Kai170676](https://forum.core-electronics.com.au/u/Kai170676)\
**Post date:** [29 July 2021 03:04 UTC](https://forum.core-electronics.com.au/t/pressure-sensor-assembly/10851/1 "2021-07-29T03:04:39Z")

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Hello,

I am new to this area so need your advice. Thanks in advance.

I am prototyping a bite force measuring device and I am looking into your pressure sensors.

I watched some Youtube videos, but none of them demonstrated how to make one, and what are needed except the sensors.

I prefer to use a LED to display the force, and use shields to simplify the assembly.

​Can you help?

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**Author:** ![James](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/james/32/4400_2.png) [@James](https://forum.core-electronics.com.au/u/James)\
**Post date:** [29 July 2021 06:18 UTC](https://forum.core-electronics.com.au/t/pressure-sensor-assembly/10851/2 "2021-07-29T06:18:07Z")

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Hi Kai,

Interesting project! Since human bite force at the molars can get up to 1300N, you’ll likely need a [high-rated load cell](https://core-electronics.com.au/load-cell-200kg-disc-tas606.html) to measure up in the required 130kg range. The easiest way to interface with these are the Qwiic Scale boards:

> **[SparkFun Qwiic Scale - NAU7802](https://core-electronics.com.au/sparkfun-qwiic-scale-nau7802.html)**
>
> The SparkFun Qwiic Scale is a small breakout board for the NAU7802 that allows you to easily read load cells to accurately measure the weight of an object. By connecting .. read more

As for the physical construction, my mind goes to something 3d printed partially in something super strong, the other part in something soft, for something to bite down on.

This is quite the rabbit holethough, could you post the videos you’ve found so far?  
-James

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**Author:** ![Kai170676](https://avatars.discourse-cdn.com/v4/letter/k/91b2a8/32.png) [@Kai170676](https://forum.core-electronics.com.au/u/Kai170676)\
**Post date:** [1 August 2021 11:13 UTC](https://forum.core-electronics.com.au/t/pressure-sensor-assembly/10851/3 "2021-08-01T11:13:29Z")

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Hi, James

Thank you for your reply.  
I am measuring mouth closing force from patients who had reconstructive surgery.  
Normally the max force is about 100N.  
Any suggestions?

Thanks in advance.

Kai

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**Author:** ![BryceT](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/brycet/32/5449_2.png) [@BryceT](https://forum.core-electronics.com.au/u/BryceT)\
**Post date:** [2 August 2021 07:24 UTC](https://forum.core-electronics.com.au/t/pressure-sensor-assembly/10851/4 "2021-08-02T07:24:50Z")

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Hey Kai,

I agree with James, a load cell is likely the best option. That being said I highly suggest getting in touch with an Engineering Consultancy group if this device is going to be used professionally so that they can help ensure that the design is valid for the application and runs consistently and correctly as there’s always more requirements and constraints to consider than are initially expected in projects.

I’ve linked Saphi’s contact for you below who are another Newcastle-based company that should be able to assist further with the design and implementation of your project or have better recommendations than I would myself for other local services that can help put this together:

> **[Contact Us SAPHI | Product Development Newcastle](https://saphi.engineering/saphi-contact-us/)**
>
> Product development Newcastle - flexible end-to-end product development services for all your commercial and industrial needs.

All the best with your project! Please let us know if you have any further questions.
