In Situ Sensor Monitoring of the Processing and Cure Properties of Solid Propellants

1993 ◽  
Author(s):  
D. E. Kranbuehl ◽  
S. Hart ◽  
Y. Wang ◽  
D. F. Schwartz
Keyword(s):  
Solid Propellants ◽  
In Situ Sensor ◽  
Sensor Monitoring

Dielectric in situ sensor monitoring of phase separation and changes in the state of each phase

2003 ◽  
Vol 198 (1) ◽  
pp. 377-388 ◽  
Author(s):  
D. Kranbuehl ◽  
J. Rogozinski ◽  
J. Warner ◽  
P. Best ◽  
J.P. Pascault ◽  
...  
Keyword(s):  
Phase Separation ◽  
The State ◽  
In Situ Sensor ◽  
Sensor Monitoring

On-Line In Situ Sensor Monitoring of Rapidly Curing Coatings-Films

2001 ◽  
pp. 141-156 ◽  
Author(s):  
D. Kranbuehl ◽  
J. Rogozinski ◽  
A. Meyer ◽  
L. Hoipkemeier ◽  
N. Nikolic
Keyword(s):  
On Line ◽  
In Situ Sensor ◽  
Sensor Monitoring

In situ sensor monitoring and intelligent control of the resin transfer molding process

1994 ◽  
Vol 15 (4) ◽  
pp. 299-305 ◽  
Author(s):  
D. E. Kranbuehl ◽  
P. Kingsley ◽  
S. Hart ◽  
G. Hasko ◽  
B. Dexter ◽  
...  
Keyword(s):  
Intelligent Control ◽  
Resin Transfer Molding ◽  
Molding Process ◽  
Transfer Molding ◽  
In Situ Sensor ◽  
Sensor Monitoring

Temperature and Viscosity in-Situ Sensor for Hostile Processes

1999 ◽  
pp. 1163-1170 ◽  
Author(s):  
Krishnan Balasubramaniam ◽  
V. Vimal ◽  
Gary Boudreaux ◽  
R. Daniel Costley ◽  
Clinton Menezes ◽  
...  
Keyword(s):  
In Situ Sensor

scholarly journals A new in situ sensor for large-scale snow-cover monitoring

2004 ◽  
Vol 38 ◽  
pp. 273-278 ◽  
Author(s):  
Manfred Stähli ◽  
Markus Stacheder ◽  
David Gustafsson ◽  
Stefan Schlaeger ◽  
Martin Schneebeli ◽  
...  
Keyword(s):  
Large Scale ◽  
Snow Water Equivalent ◽  
Soil Surface ◽  
Test Site ◽  
Liquid Water Content ◽  
Flat Band ◽  
Snow Layer ◽  
In Situ Sensor ◽  
Set Up

AbstractA new in situ sensor for the simultaneous measurement of snow water equivalent, snow density and liquid-water content is presented in this paper. The system consists of radio frequency transmission lines of up to 25 m length cast in a flat PVC band, which can be set up either horizontally to monitor single snow-layer properties or sloping from a mast to the soil surface to determine vertical snowpack properties. The dielectric coefficient along the flat-band cable is measured with a time-domain reflectometer at high frequencies, and with a low-frequency impedance analyzer. The performance of the sensor system was tested during two winter seasons (2001–03) at the high-alpine test site Weissfluhjoch, Davos, Switzerland. The cable suspension and set-up of the sloping cable was shown to be critical with regard to stability and the formation of unwanted air gaps along the cable. Overall, the sensing system proved quite robust and produced results in agreement with manual snowpack observations.

MiniPINS - Miniature in situ sensor packages for Mars and Moon

2020 ◽  
Author(s):  
Maria Hieta ◽  
Maria Genzer ◽  
Harri Haukka ◽  
Antti Kestilä ◽  
Ignacio Arruego ◽  
...  
Keyword(s):  
In Situ Sensor

In Situ Sensor Technology for Simultaneous Spectrophotometric Measurements of Seawater Total Dissolved Inorganic Carbon and pH

2015 ◽  
Vol 49 (7) ◽  
pp. 4441-4449 ◽  
Author(s):  
Zhaohui Aleck Wang ◽  
Frederick N. Sonnichsen ◽  
Albert M. Bradley ◽  
Katherine A. Hoering ◽  
Thomas M. Lanagan ◽  
...  
Keyword(s):  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Sensor Technology ◽  
Total Dissolved Inorganic Carbon ◽  
In Situ Sensor

scholarly journals Feasibility Study and Demonstration of an Aluminum and Ice Solid Propellant

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Timothee L. Pourpoint ◽  
Tyler D. Wood ◽  
Mark A. Pfeil ◽  
John Tsohas ◽  
Steven F. Son
Keyword(s):  
Hydrogen Generation ◽  
High Surface ◽  
High Surface Area ◽  
Sounding Rocket ◽  
Small Scale ◽  
Solid Propellants ◽  
Aluminum Particles ◽  
Underwater Propulsion ◽  
Binary Formulation

Aluminum-water reactions have been proposed and studied for several decades for underwater propulsion systems and applications requiring hydrogen generation. Aluminum and water have also been proposed as a frozen propellant, and there have been proposals for other refrigerated propellants that could be mixed, frozen in situ, and used as solid propellants. However, little work has been done to determine the feasibility of these concepts. With the recent availability of nanoscale aluminum, a simple binary formulation with water is now feasible. Nanosized aluminum has a lower ignition temperature than micron-sized aluminum particles, partly due to its high surface area, and burning times are much faster than micron aluminum. Frozen nanoscale aluminum and water mixtures are stable, as well as insensitive to electrostatic discharge, impact, and shock. Here we report a study of the feasibility of an nAl-ice propellant in small-scale rocket experiments. The focus here is not to develop an optimized propellant; however improved formulations are possible. Several static motor experiments have been conducted, including using a flight-weight casing. The flight weight casing was used in the first sounding rocket test of an aluminum-ice propellant, establishing a proof of concept for simple propellant mixtures making use of nanoscale particles.

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