Abstract: A measurement system for accurate and reliable measurement of an aggregate in a container is described. As used herein “accurate” means the actual amount of aggregate in a container is approximately the same as the measured value of aggregate. As used herein “reliable” means the operation of the distance sensor for extended periods of time without maintenance or battery replacement and without requiring a larger power source. The measurement system includes a distance sensor, a gateway, and a network for accurately and reliably measuring an aggregate in a container over a long period of time (e.g. at least three years). The measurement system includes a distance sensor, a gateway, and a computer-based program.

Abstract: A flowable material level sensor for use in a material containment structure which closes or activates a switch when the flowable material in the containment structure reaches a predetermined level. The sensor includes an elongated rod or wand which extends downwardly from a sensor housing positioned in the containment structure. The sensor includes an actuator assembly which converts angular or lateral movement of the rod into upward longitudinal movement of an actuator element therein which closes the switch when the level of material in the containment structure has reached the predetermined level. The closure of the switch is communicated to a monitoring station remote from the containment structure.

Abstract: An illuminated rain gauge comprising an elongated, transparent collection vessel or tube having upper and lower ends with the lower end thereof being closed by a plug and which has a funnel-shaped collector at the upper end thereof. A support is positioned within the funnel-shaped collector and has a solar collector or panel mounted thereon. A light source such as an LED is positioned on the underside of the support and is powered by the solar panel. The LED directs light into the collection vessel so that the rainfall amounts may be determined during periods of darkness. The illuminated rain gauge may take many forms and/or shapes. In one embodiment, the light source is battery powered. In another embodiment, the light source is battery powered and wireless controlled.

Abstract: To degauss cassettes of magnetic tape, a magnetic field is applied to the magnetic material while the magnetic material moves with respect to the field in a single air gap of a flux density of at least 1,000 gauss and at an angle between 20 degrees and 70 degrees from the horizontal of the magnetic tape for a time priod of at least one second and the field is alternated at a frequency of at least ten hertz. The magnetic material may be rotated while it is in the field.

Abstract: To degauss cassettes of magnetic tape, a magnetic field is applied to the magnetic material with a flux density of at least 1,000 gauss and at an angle between 20 degrees and 70 degrees from the horizontal of the magnetic tape for a time period of at least one second and the field is alternated at a frequency of at least ten hertz. The magnetic material may be rotated while it is in the field.

Abstract: To degauss cassettes of magnetic tape, a magnetic field is applied to the magnetic material with a flux density of at least 1,000 gauss and at an angle between 20 degrees and 50 degrees from the horizontal of the magnetic tape for a time period of at least one second and the field is alternated at a frequency of at least ten hertz. The magnetic material may be rotated while it is in the field.

Abstract: To degausse high coercivity magnetic recording media, a programmable degausser includes at least first and second stations positioned at 45 degrees with respect to an anti-static conveyor belt passing through their centers and at a 90 degree angle with respect to each other. The stations include coils wound on insulated bobbins and the degausser is programmable to selectively operate continuously, operate manually, operate in response to detected recording or operate when there is no low-current or low-temperature warning alarm.