Scentczar's patented Miniature Passive Indicator is a Residual Life Indicator and can be used as a filter breakthrough sensor.
Miniature Passive Indicator Picture
Setting up a permeation tube generator for laboratory testing in Scentczar's laboratory.
Permeation Tube generator
Specially designed rack for Scentczar's fire test simulating a combat situation for our Miniature Passive Indicator.
Rack for fire testing
Scentczar field demonstration of a filter breakthrough sensor called the Miniature Passive Indicator (MPI). MPI is more specifically known as a Residual Life Indicator and predicts filter breakthrough.
Fire test picture
Find out about Shur Shot, ATB Analytic's Hydrogen Fluoride Detector which finds applications in the chemical and nuclear industries.
Shur Shot picture
Find out about
Sensor Companion™ ,RMC's 4 to 20 mA data logger which functions as a minialarm and universal controller. It's perfect for university labs and small business gas detector users.
Sensor Companion

Overview of Scentczar Capabilities

Scentczar has been in business over a decade and has focused on developing products that solve specific problems for both the civilian and military worlds based on novel sensor technology acquired from a variety of sources.  Scentczar’s job has been to build a system around a sensor, execute a test program, and demonstrate results.  We have collaborated with a number of scientists in pursuit of this end.  Here is more information on Scentczar and Joe Roehl, Scentczar's Principal.

Scentczar Experience with Chemical Detectors

Application

Scentczar Experience

Health & Safety

Joe Roehl, Scentczar’s Principal, was the first marketing manager for Bendix Environmental Process and Instrument Division’s (EPID) commercial IMS product line which included the General Purpose Ion Mobility Spectrometer (GPIMS), a device designed to evaluate IMS for health and safety applications.  Joe traveled the US and Canada with the device helping potential customers to evaluate applications.  Some of the most interesting applications turned out to be Methyl Isocyanate (MIC), hydrazine, fluorine, and ammonia.  Scentczar did preliminary laboratory work on an infrared ice detector who’s ultimate purpose was to measure icing conditions on pavement.

Field Analytical Instrument

Joe Roehl, Scentczar’s Principal, developed a design for a Cone Penetrometer (CP) using a membrane inlet and a chemical sensor embedded in the cone cylinder to form a highly effective field analysis tool.

Chemical Warfare Agent  (CWA) detector

Scentczar developed a chemical dosimeter for activated carbon beds used in chemical defense called the Miniature Passive Indicator (MPI).  The MPI was sensitive to benign materials known to load the filters and reduce their life.  Joe Roehl developed the computer algorithm for the Bendix XM22 ACADA.  Joe also developed a non-radioactive ionization source for the XM22 based on an ultraviolet flash lamp source.

Explosive Detectors

Joe Roehl was a member of Glenn Spangler’s team at Bendix EPID and worked closely with Glenn on data capture and analysis for IMS based explosive detectors.

Explosive Vapor Detectors

Scentczar developed an explosive vapor and liquid detector designed to be installed inside a missile canister.  The device was interesting in that it used an high frequency transformer (inductive) system to pass signal through the wall of the container.

Process Analyzer

Scentczar worked with Molecular Analytics (now defunct) to develop an IMS instrument system to measure Nitrous Oxide (NO) in Diesel exhaust.  The purpose of the device was to optimize the timing of large Diesel engines in order to meet EPA standards.  Since IMS is only sensitive to NO2 the application required a converter.

Stack or Continuous Emissions Monitor (CEM)

Joe Roehl worked with customers and the applications engineering staff at Bendix EPID to develop an ammonia slip monitor for power plant applications.  This was part of a NOx emissions control system.

Emergency Response

Scentczar has most recently worked with the Shur-Shot detector described elsewhere on the web site.  Shur-Shot is designed to trigger a remediation system based on detecting a moderate or crash concentration of HF and activation a camera system and possibly a water curtain.

Scentczar Capabilities

Scentczar has the required capabilities and experience to manage or participate in a sophisticated chemical detector project. The movie below gives you our areas of expertise at a glance.

Capabilities Movie Picture frame

Scentczar Personnel

Joe Roehl, Scentczar’s Principal, has participated in a wide variety of chemical detector projects wearing at least five functional hats during different development projects:

Click here to find a Table of Sensor Projects Scentczar’s Principal, Joe Roehl, has worked on.

Joe acquired his expertise over an entire career, but especially while working at Bendix Environmental Process  and Instruments Division (EPID), later Environmental Technologies Group (ETG).  Joe brought his expertise to Scentczar over a decade ago.

Chemical Detector Development and Matching Scentczar Capabilities