Apidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, Adobe
Acoustics
1. Recentdevelopments in temperature
measurement have encouraged
researchers to develop
low-cost
simple structure
computerized generic transducers for
environmental monitoring
industrial process control.
4. ATT?
Device based on the
characteristics of sound waves
in a wave- guided media, in
which sound wave is guided
physically
5. Basic Principle
Speed of sound is proportional to the
absolute temperature, which is also
related to the frequency of the sound
wave, assuming existence of a constant
wavelength.
C = f . λ
v = 331m/s + 0.6m/s/C * T
7. Status Quo:
Problem?
Predominant market need for sensors
that are
competitively priced due to mature and
established manufacturing methodologies
inherently rugged because of the
implementation of advanced packaging
techniques
very sensitive and intrinsically reliable.
8. Greater Problem?
Sensors need to be of a
very small size, not influenced by magnetic fields,
contribute to emerging market needs of being able
to support data
monitoring functions wirelessly
complementing additional functionalities such as
low power requirements
being passively and wirelessly interrogated (no
sensor power source required).
9. Solution:
ATT
Abilityto fulfill the above market
requirements
high performance
small size
high reproducibility
10. Fig. 1. ( а ) Diagram of the experimental setup for detecting
heated bodies placed in biological media; (b) result of
detection of the heated body placed in gelatine.
11. Distinction
The acoustic temperature sensor
provides temperature measurement
that is independent of wafer
emissivity conditions and lamp
radiation levels.
It does not require thermal contacts
on the wafer and is compatible with
the reactive conditions of rapid
thermal processing.
12. Fig. 2. Two-dimensional tomogram of a heated sample placed in
water. The tomogram was obtained by antenna focus scanning
in depth and along the transverse coordinate.
13. Importance of
Acoustic Techniques
Used to monitor the temperature of
silicon wafers during rapid thermal
processing from room temperature to
1000 C with tolerance 5 C accuracy.
Acoustic transducers are mounted at
the bases of the quartz pins that
hold up the silicon wafer during rapid
thermal processing.
14.
15. Security System
Abilityto detect the range of the person
way from the sensor
Effective monitoring system enabling the
knowledge of a moving body’s
prescence
16. Telecommunications
Industry
Largest volume application -
accounting for filters and
oscillators in mobile cell phones
and base stations.
17. SAW?
Surface acoustic wave devices and
Function as band-pass filters in both the
radio frequency and intermediate
frequency sections of the transceiver
electronics..
18. Applications
Automotive applications (tire pressure
and oil condition monitoring sensors)
and industrial and commercial
applications (temperature in
ovens, pressure in tanks).
