Piezo Power Estimator for Energy Harvesting
Use this estimator to identify the ideal Mide Piezoelectric energy harvester for your application. Please note: the estimator assumes that the harvester has been tuned.
Mide's Standard Piezo Products (PPA)
|Product #||Power (mW)||Tip Mass (g)||Open Circuit
|Displacement (mm)||% of Max. Displacement|
PPA Volume Pricing
PPA Electromechanical Specifications
|Product #||Length (mm)||Width (mm)||Thick (mm)||Cap.||Mass||Max.
The data presented in these tables all assume that the harvester has its resonant frequency tuned to the drive frequency. Tuning is achieved by adding tip mass using the provided mounting holes at the tip of each energy harvester. More information on how the required tip mass is calculated is explained in Section 4.4 in the datasheet. Lower frequencies will require more tip mass on the harvester (to tune it) which results in higher displacement and higher power output.
This data is all calculated off of the experimental data presented in the datasheet of Mide's harvesters performance at 4 different acceleration amplitudes and 3 different frequencies. A series of equations interpolate the performance metrics for other frequencies and amplitudes. Please note that these are estimates and should be used to help select the right product. Testing in the actual intended environment is necessary to gauge performance expectations.
In selecting the appropriate harvester for your application, it is advantageous to select one with the least percentage of maximum displacement. This indicates that the harvester is being strained less and therefore a longer performance life can be expected. Please contact a Mide engineer with any questions.