Abstract: A sensor including an array of sensor elements generates an image responsive to electromagnetic radiation exposure. The sensor reads coordinates for predetermined hot sensor elements and calculates a dark count for each hot sensor element. The sensor determines a temperature indicator based on the dark count for the hot sensor elements and calculates the dark count for all sensor elements based on the temperature indicator. Based on the dark count the sensor is able to compensate for dark current.

Abstract: A sensor including an array of sensor elements generates an image responsive to electromagnetic radiation exposure. The sensor reads coordinates for predetermined hot sensor elements and calculates a dark count for each hot sensor element. The sensor determines a temperature indicator based on the dark count for the hot sensor elements and calculates the dark count for all sensor elements based on the temperature indicator. Based on the dark count the sensor is able to compensate for dark current.

Abstract: A molded plastic seating module is disclosed which is suitable for assembly in groups to form bench type row seating especially telescoping bleachers. Each module is hollow and comprises two sections, a contoured seat and an upstanding base. The base is adapted to be secured to the support structure both vertically and horizontally and to resist tipping and the presence of structural stress concentrations in use. The seat is adapted to engage the base in a snap fit relation along its front and rear walls.

Abstract: There is disclosed a safety fountain head for drinking fountains, bubblers, and the like, which comprises a body that is formed of a resilient, impact-absorbing plastic having a bulbous shape and a dependent neck which receives a tubular metal sleeve member that distally bears means for attachment of the head to a conduit and which terminates within the body as a tubular member having a leg portion angularly disposed to the sleeve. The body has a discharge port which communicates with the open end of the leg portion and also has a drain and aeration passageway which communicates from an undersurface of the body to a drain and aeration port in the sleeve member. The sleeve member is metallic and is embedded within the plastic body which is molded to the sleeve member during its manufacture. The sleeve member has a peripheral rib to enhance its retention within the molded-on plastic body.

Abstract: A hydrophobic standard for calibrating nuclear radiation moisture gauges. In accordance with this invention, each standard has physical characteristics and dimensions effective for representing to a nuclear gauge undergoing calibration an infinite mass of homogeneous hydrogen content. Calibration standards are disclosed which are suitable for use with surface gauges and with depth gauges.