จัดให้ครบ หวยหนังสือพิมพ์ งวด 16/5/62 จับเลขชุดไหนเลือกเองเลย
When talking aerospace sensors, 'analogue' or 'digital' become hardly necessary, being simply a matter of method of operation, and that it is the underlying physical principles that are all-important. Classification of sensors - In discussing sensing devices one has to decide whether to classify them according to the physical property they use (such as piezoelectric, photovoltaic, etc.) or according to the function they perform (such as measurement of length, temperature, etc.).
from: http://ezinearticles.com/?Aerospace-Sensors,-Transducers-and-Actuators&id=2012213
