Suggest me some low sensitive Sound sensors.

[rama1001]

I am doing a module to adjust the noise in a motor such that motor inside piston stroke is touching some mechanical part leads to small noise. I would like to adjust these by using sound sensoror presser or vibration sensors. I don't know which one to use in that sistuation but my guess is sound sensor. can some help me to choose sensor and company name. Note, the sound is very low(noise) so that the options shoud be consider this.
Hope some will give suggestions.

 

[Studiot]

Old fashioned engineers (mechanics) used a stethoscope and their own ears for this.

 

[rama1001]

Any modern ideas that can be smart. I am looking for sensible sound sensor...

 

[Studiot]

Look for an electronic (eg piezo) type engine stethoscope.

http://www.alibaba.com/countrysearch/CN/engine-stethoscope.html

http://www.etoolcart.com/electronicenginestethoscope-1.aspx

 

[alphy]

There are several low sensitive sound sensors available on the market that can be used for your module. One option is the Knowles Ultrasonic MEMS Microphone, which has a sensitivity of -26 dB. Another option is the Infineon XENSIV MEMS Microphone, which has a sensitivity of -26 dB as well. Both of these sensors are designed to detect very low levels of sound, making them suitable for your application.

In terms of choosing a company, both Knowles and Infineon are reputable manufacturers of sound sensors and have a range of options to choose from. It would be best to compare the specifications and features of each sensor to determine which would be the best fit for your specific needs.

Additionally, you may also want to consider using a pressure or vibration sensor in conjunction with a sound sensor to get a more comprehensive understanding of the noise in the motor. Companies such as Honeywell, TE Connectivity, and Sensata Technologies offer a range of pressure and vibration sensors that could be suitable for your application.

Ultimately, the best sensor and company for your project will depend on your specific requirements and budget. I would recommend doing further research and possibly consulting with a sensor expert to determine the best option for your needs.