September 2, 2005
Accu-Coder: The Homeland Security Encoder of Choice
These new machines are used to detect explosives, narcotics, or poisonous chemicals in a variety of applications. One machine is a walk thru portal often used in airports, government buildings, even the Olympics. Another is a device that is mounted on Military Vehicles to detect explosives and mines along roadways. The third is used in post offices to detect trace amounts of poisonous chemicals potentially found on letters or packages during the mail sorting process.
These machines are so sensitive they can detect a billionth of a gram of illegal substance, requiring an encoder that was equally precise and reliable. The Absolute Encoder Model 960 was chosen for two of these applications. This small profile absolute encoder uses “Gray code” to generate a unique code word, often called “bits”, to define exact positioning even in a power failure. Due to the mathematical algorithms of the Gray codes, in conjunction with Opto-ASIC technology, these encoders are more accurate and precise than conventional incremental encoders, and have a high tolerance for electrical noise. The 1.55” profile and flexible mounting system of the Model 960, make it easy to install in the field, and provides the added benefit of superior resistance to axial misalignment or radial shaft run-out. Other encoders used for Homeland Security are The Model 702 and Model 755A with custom modifications. These rugged, reliable encoders can withstand tough environmental conditions, and provide precise optical encoding for the most critical applications.
As demonstrated by the events in the past several years, the need for more accurate detection devices has increased. Since many governmental contractors have put their trust in the durability and reliability of an Accu-CoderTM to protect us, shouldn’t you?