Abstract:
Disclosed is a hermetically sealed housing assembly for protecting electrical equipment. The housing assembly includes a hermetically sealed housing member having an exterior wall and an interior region for containing the electrical equipment. A flex tap electrical signal conductor extends through an opening in the exterior wall, and transmits electrical signals between the electrical equipment in the interior region and electrical components in a region exterior to the housing member. The flex tape signal conductor is hermetically sealed to the exterior wall of the housing member at the opening to maintain the integrity of the hermetic seal of the housing member even after temperature-cycling for a period of time.
Abstract:
The present invention relates to a laser intensity monitor (10). Specifically the laser intensity monitor (10) uses a black chrome metallic, non-light transmissive mask (24) deposited on an optically transparent glass or sapphire window (16). The mask (24) has an aperture (100) therethrough. The mask (24) is positioned on the window (16) in such a manner that only the TEM00 mode of a counter-rotating laser beam is allowed to pass through the aperture (100) of the mask (24) and the window (16) to strike a photodetector (12).
Abstract:
A method for forming an electrode seal between an excitation electrode and a laser block in a ring laser gyro having increased bond durability, strength, and greater resistance to solvents and reactive compounds. A thin ring of sealing material is positioned between an excitation electrode and a laser block of the ring laser gyro, and the sealing material is compressed. Chemical and physical bonds are formed between the excitation electrode and the sealing material and between the sealing material and the laser block. A pre-determined electrical potential is applied across the excitation electrode, the sealing material, and the laser block for a pre-determined period of time and at a pre-determined temperature. The electrical potential increases the number of chemical and physical bonds that are formed at the seal, thus increasing the bond durability and strength.
Abstract:
Disclosed is a hermetically sealed housing assembly for protecting electrical equipment. The housing assembly includes a hermetically sealed housing member having an exterior wall and an interior region for containing the electrical equipment. A flex tap electrical signal conductor extends through an opening in the exterior wall, and transmits electrical signals between the electrical equipment in the interior region and electrical components in a region exterior to the housing member. The flex tape signal conductor is hermetically sealed to the exterior wall of the housing member at the opening to maintain the integrity of the hermetic seal of the housing member even after temperature-cycling for a period of time.
Abstract:
A method for forming an electrode seal between an excitation electrode and a laser block in a ring laser gyro having increased bond durability, strength, and greater resistance to solvents and reactive compounds. A thin ring of sealing material is positioned between an excitation electrode and a laser block of the ring laser gyro, and the sealing material is compressed. Chemical and physical bonds are formed between the excitation electrode and the sealing material and between the sealing material and the laser block. A pre-determined electrical potential is applied across the excitation electrode, the sealing material, and the laser block for a pre-determined period of time and at a pre-determined temperature. The electrical potential increases the number of chemical and physical bonds that are formed at the seal, thus increasing the bond durability and strength.
Abstract:
La présente invention se rapporte à un dispositif de surveillance (10) de l'intensité d'un laser. Plus particulièrement, le dispositif de surveillance (10) d'intensité de laser utilise un masque métallique non translucide en chrome noir (24), déposé sur une fenêtre (16) de saphir ou en verre optiquement transparent. Le masque (24) est traversé par un orifice (100). Le masque (24) est placé sur la fenêtre (16) de manière à permettre uniquement au mode TEM00 d'un faisceau laser à rotation inverse de traverser l'orifice (100) du masque (24) et la fenêtre (16) pour heurter un photodétecteur (12).
Abstract:
Affixing together two articles (16, 12) includes placing a frit preform (200) with an adhesive material on the surface of either article (16, 12). The preform (200) and the articles (16, 12) are heated to cause the frit material to liquify and then cooled to affix together (200a) the two articles (16, 12) at the junction (220) of the two articles (16, 12).
Abstract:
Disclosed is a mounting mechanism and method for accurately securing and uniformly bonding piezoelectric transducers (PZTs) to a dither spring. The dither spring includes a central hub, an outer toroidal rim, a plurality of flexible reeds and a plurality of lobes. The reeds extend between the hub and the rim, and one of the lobes is positioned between each pair of adjacent reeds. A mounting mechanism includes locating channels on the lobes sized to receive mounting inserts that hold the PZTs during assembly. The mounting mechanism accurately positions and provides a uniform bonding force to the PZTs to precisely and firmly secure the PZTs on the dither spring reeds.
Abstract:
Affixing together two articles (16, 12) includes placing a frit preform (200) with an adhesive material on the surface of either article (16, 12). The preform (200) and the articles (16, 12) are heated to cause the frit material to liquify and then cooled to affix together (200a) the two articles (16, 12) at the junction (220) of the two articles (16, 12).