Abstract: A housing comprises at least first and second portions. The first and second portions mate with each other at respective joining regions. The first and second portions each comprise a respective tapered flange along the joining region. The first and second portions of the housing are connected to each other by placing a plurality of collars over the tapered flanges of the first and second portions of the housing. Each of the collars has a respective groove formed therein. The grooves of the plurality of collars are placed over the tapered flanges of the first and second portions of the housing. A plurality of fasteners causes the plurality of collars to press the first and second portions of the housing together. In one embodiment, the housing is used in a sensor block assembly that is part of an inertial measurement unit.

Abstract: A housing comprises at least first and second portions. The first and second portions mate with each other at respective joining regions. The first and second portions each comprise a respective tapered flange along the joining region. The first and second portions of the housing are connected to each other by placing a plurality of collars over the tapered flanges of the first and second portions of the housing. Each of the collars has a respective groove formed therein. The grooves of the plurality of collars are placed over the tapered flanges of the first and second portions of the housing. A plurality of fasteners causes the plurality of collars to press the first and second portions of the housing together. In one embodiment, the housing is used in a sensor block assembly that is part of an inertial measurement unit.

Abstract: An apparatus and method to isolate downhole components within a downhole tool from shock and vibration typically experienced during handling and use of the downhole tool. The apparatus and method include a series of interlocking hooks and loops that are bondable to the downhole component and dampingly secure the downhole component within the downhole tool. The material comprising the interlocking hooks and loops is a high temperature material whose performance is not affected by high temperatures.

Abstract: A thin film environmental monitor for monitoring a person's exposure to an analyte in an environment, comprising a portable casing for housing the monitor, a pump in the casing for obtaining an air sample, and a sensor in the casing for sensing the concentration of the analyte in the air sample obtained by the pump. The sensor includes an active film portion coated with a dry coating adapted to cause a chemical reaction with the analyte, and a reference film portion for transmitting incident light independently of the concentration of analyte in the air sample. The sensor generates an active signal representing the amount of light transmitted by the active film portion and a reference signal representing the amount of light transmitted by the reference film portion.