A single sensor chip generally has only one type of measurement
device. For example, the WISA MOD II shown above can measure an
acceleration component normal to its plane. It is
insensitive to any acceleration that lies in a plane perpendicular to
its input axis. Moreover, it is designed to unaffected by
variations in temperature, random vibration, or angular motion etc.
A list of Waddan's single sensor devices is provided in the right
hand columns along with the processing technologies employed to
fabricate them.
An integrated sensor incorporates more than one single sensor devices
in one chip. For example, the device shown includes one accelerometer,
one pressure sensor, three strain gages as rosette and a temp sensor. It
can be cemented on a surface location 2mmX2mm, and provide these
seven measurements of that location. This device was used in
ANDAS, wherein the associated electronics components are mounted on one
face of a flexible PCB so that it can be cemented along with the
integrated sensor on a curved surface. A list of Waddan's integrated sensor devices is provided in the right hand
columns along with the processing technologies employed to fabricate
them.
