Abstract: A detector for detecting vapors emitted from analytes includes a housing, a pump and a sensing assembly. The housing has an inlet, an outlet and an enclosed sensing volume therebetween. The pump communicates with the housing for moving a carrier sequentially through the enclosed sensing volume at a predetermined flow rate. The sensing assembly senses the vapors of the analyte delivered by the carrier as the carrier passes through the housing. The sensing assembly includes a sensing unit constructed of an amplifying fluorescent polymer, a source of excitation, a detector, and a convertor assembly.

Abstract: A system for providing reliable, unalterable mechanical data associated with the mechanical properties of a concrete mass. The system includes a logger, a second memory device and an outbound data transfer device. The logger is provided with one or more sensors, a microprocessor and a first memory device. The one or more sensors measure physical properties of the concrete mass and generate data associated with the physical properties. The microprocessor receives the data from the sensor and calculates maturity data and mechanical strength data. The first memory device stores the mechanical strength data within the concrete mass in an unalterable form. The second memory device is located outside the concrete mass. The outbound data transfer device transfers the mechanical strength data from the first memory device to the second memory device.

Abstract: A system that includes a logger to record mechanical data for a concrete mass and to transmit the mechanical data to a reader. The system includes sensors, a microprocessor and a first memory device embedded in the concrete mass for generating mechanical strength data for the concrete mass and storing that information in the first memory device. In one embodiment the mechanical data is encrypted to prevent third parties from downloading and reading the data. In another embodiment, the logger communicates with the reader through communication wires. In yet another embodiment, the logger transfers data files to the reader by radio frequency signals.

Abstract: A system that includes a logger to record mechanical data for a concrete mass and to transmit the mechanical data to a reader. The system includes sensors, a microprocessor and a first memory device embedded in the concrete mass for generating mechanical strength data for the concrete mass and storing that information in the first memory device. In one embodiment the mechanical data is encrypted to prevent third parties from downloading and reading the data. In another embodiment, the logger communicates with the reader through communication wires. In yet another embodiment, the logger transfers data files to the reader by radio frequency signals.

Abstract: A detector for detecting vapors emitted from analytes includes a housing, a pump and a sensing assembly. The housing has an inlet, an outlet and an enclosed sensing volume therebetween. The pump communicates with the housing for moving a carrier sequentially through the enclosed sensing volume at a predetermined flow rate. The sensing assembly senses the vapors of the analyte delivered by the carrier as the carrier passes through the housing. The sensing assembly includes a sensing unit constructed of an amplifying fluorescent polymer, a source of excitation, a detector, and a convertor assembly.

Abstract: A detector for detecting vapors emitted from energetic compounds includes a housing, a pump and a sensing assembly. The housing has an inlet, an outlet and an enclosed sensing volume there between. The pump communicates with the housing for moving a carrier gas sequentially through the enclosed sensing volume at a predetermined flow rate. The sensing assembly senses the vapors of the energetic compound delivered by the carrier gas as the carrier gas passes through the housing. The sensing assembly includes a sensing unit constructed of an amplifying fluorescent polymer, a source of excitation, a light detector, and a convertor assembly.