Abstract: An apparatus for taking environmental health measurements comprises a portable that encloses an onboard processor, a transceiver coupled to the onboard processor, a camera coupled to the onboard processor; and a suite of sensors all coupled to the processor including an infrared temperature sensor, a probe thermometer, a sound sensor and at least one water content sensor. In addition, the apparatus includes a distance sensor and a display. The onboard processor is configured to launch an application for guiding a user for taking environmental and health parameter measurements from objects using at least one of the sensors enclosed in the housing and is further configured with code for determining whether measured parameters are within prescribed safety thresholds.

Abstract: Representative implementations of devices and techniques provide increased negative resistance to an oscillator circuit. A capacitance divider and/or a feedback loop may be employed to increase the negative resistance of the oscillator circuit at the same current consumption and with the same load capacitance. Further, a constant bias circuit may be employed to conserve and/or reduce the current consumption of the oscillator circuit.

Abstract: Representative implementations of devices and techniques provide increased negative resistance to an oscillator circuit. A capacitance divider and/or a feedback loop may be employed to increase the negative resistance of the oscillator circuit at the same current consumption and with the same load capacitance. Further, a constant bias circuit may be employed to conserve and/or reduce the current consumption of the oscillator circuit.