초록 ▼

A sensor signal processing apparatus for measuring a physical quantity through the use of a sensor. A data processor automatically provides an operation equation by applying two known physical quantities, at two points, to the sensor and storing the data at these two points in a pair of memories. Th

A sensor signal processing apparatus for measuring a physical quantity through the use of a sensor. A data processor automatically provides an operation equation by applying two known physical quantities, at two points, to the sensor and storing the data at these two points in a pair of memories. The quantities in the memories are then converted in accordance with a sensor characteristics equation and displayed on a display unit. In addition, a battery is used to supply the data processor with power. If that battery\s voltage level falls below a certain point an alarm is sounded, indicating that the battery should be replaced.

대표청구항 ▼

A sensor signal processing apparatus comprising: a power source unit including, a battery, a constant voltage circuit powered by said battery for supplying a constant voltage, and a voltage detector for detecting a voltage drop in said battery having a comparator for comparing a terminal voltage of

A sensor signal processing apparatus comprising: a power source unit including, a battery, a constant voltage circuit powered by said battery for supplying a constant voltage, and a voltage detector for detecting a voltage drop in said battery having a comparator for comparing a terminal voltage of said battery with the voltage supplied by said constant voltage circuit; a sensor for detecting physical information; an analog signal processor for inputting and processing a sensor signal output from said sensor which is driven by said constant voltage circuit; an A/D converter for converting the sensor signal, processed by said analog signal processor, into digital information data output and which is driven by said constant voltage circuit; a data processor for generating sensor information data from the digital information data output from said A/D converter including, first and second memories for storing first and second digital information data output from said A/D converter, respectively, sensor characteristic calculating means for calculating a sensor characteristic equation on the basis of the first and second digital information data stored in said first and second memories and converting the digital information data output from said A/D converter into the sensor information data by applying the sensor characteristic equation calculated by said sensor characteristic calculating means to the digital information data, and a control signal generator for generating control signals for controlling operations of said power source unit, said sensor, said analog signal processor, said A/D converter, and said data processor.