Drawing Number: 21075
Revision: C
ECN Number: 47023
OPERATION MANUAL FOR
QUARTZ PRESSURE SENSORS
SERIES 102
SERIES 113
1
1.0
INTRODUCTION
This series of miniature dynamic pressure sensors is
specifically designed for shock tube and blast wave
measurements and for other applications requiring
very high frequency, near non-resonant response.
The term used to describe the transient response of
this model series is “Frequency Tailoring” and it
encompasses several mechanical and electrical design
features
coupled
with
stringent
in-process
fabrication/test procedures with heavy emphasis on
the shock tube as a tool.
2.0
DESCRIPTION
Although this series consists of sensors with three
basic mechanical configurations and six different
sensitivities, each model is basically similar in
internal design.
Typical ICP
®
Probe Style Sensor
Each utilizes the acceleration-compensated Series
113 quartz piezoelectric element coupled to a source
follower type miniature electronics. (See “General
Guide to ICP
®
Instrumentation,” G-0001B, for a
detailed description of the ICP
®
concept.)
The figure above shows the components of the basic
ICP
®
probe, i.e. the piezoelectric element and the
ICP
®
source follower amplifier. These components
are joined together as an inseparable sealed assembly
at the factory. Disassembly should not be attempted
in the field.
Series 113B2x are in a probe configuration and are
installed with a hollow clamp nut with 5/16-24
external threads. The housing of these models is at
electrical ground potential.
Series 113B3x are similar to the B2x Series with an
additional feature; all Invar construction. The all
Invar sensors are designed to have minimal
susceptibility to thermal transient events and are
specifically suited for high-temperature shock and
blast measurements.
Series 113: Probe Style Sensor
Series 102 consist of the basic 113 Series probe, as in
the above mentioned series, mounted in a 3/8-24
threaded mounting adaptor. The probe is installed at
the factory in an "off ground" configuration, i.e. the
probe body is insulated from the external mounting
adaptor body.
The Model 102A12 utilizes the same inner probe
design as the above two designs but in a 3/8-24
+
_
Intergrated
Circuit
Amplifier
Seal Ring
Potting
Connector
Preload Sleeve
Electrodes
Diaphragm
Housing 0.218 Dia
Quartz Plates
Acceleration
Compensation
Mass and Plate
Mounting
Clamp Nut
M
