Hi,

May I ask a question on MMA7660 accelerometer sensor?

How many “MEMS capacitive sensing g-cell”s does a 3-axis accelerometer have? For MMA7660, “Principle of Operation” of its datasheet gave an analogy that the sensing g-cell works like a “movable beam between two beams” (see attached picture).

In Figure 19 (see attached picture), it is shown that the accelerometer has 3 directions. Therefore, is there three “movable beam”s (g-cell’s) as shown in the figure above?

Does the number of g-cell’s determine the axis number, such that **1-axis** accelerometer has **one** g-cell, **2-axis** accelerometer has **two** g-cell, and **3-axis** accelerometer has **three**?

Bob

Hello Bob,

Yes.

Regards,

Mac