We have started a discussion about different methods to gather sound / vibration from a bee hive Luftschall / Mikrofon vs. Substratschall / Piezo . Let’s focus on the vibration part. This is an interesting part because low frequency vibration is a communication channel for the bees. So with a vibration analysis we can listen to parts of the bee-to-bee communication. Frequencies < 100 Hz are important for the waggle dance. Of cause this is not the only communication chanel, we have smell, pheromones, …
Have a look at some Publications about Bee Behaviour in Consideration of Vibration and feel free to add missing pieces we have not found yet!
My current knowledge is that we can measure vibrations with piezo sensors. So the question is what parameter in the datasheet we have to consider about
- and …??
What kind of amplifier do we need? A normal audio mic amp or something special?
We can also use ready to use packed accelerometers. Same questions as above. What sensors are suitable for the small movements in a bee hive?
1g should be sufficient. But Triple-Axis means also triple data. So we would omit 1 or two axis. or combin all tree axis to one parameter we transmit via telemetry?
(digital) vibration sensor
- Bosch BMA456
software: GitHub - Seeed-Studio/Seeed_BMA456: Library for Grove - Step Counter(BMA456)
- Bosch BMA220
– hardware and software: https://www.dfrobot.com/product-1085.html
– Datasheet http://image.dfrobot.com/image/data/SEN0168/BMA220%20datasheet.pdf
– p. 13: default filter < 32 Hz