Process and device for indicating and evaluating environmental parameters
First Claim
1. A device for gathering information on enviromental conditions, comprising:
- a portable base;
measuring means on said base for detecting the magnitudes of selected environmental parameters;
chronometric means on said base;
storage means on said base coupled with said measuring and chronometric means for registering a detected magnitude of a selected one of said environmental parameters together with the time of detection on a recording medium;
coding means on said base for additionally registering on said recording medium the location of a device at the instant of said detection; and
adjustment means interposed between said measuring means and said threshold means for modifying a detected magnitude in light of other information, said adjustment means including means for selecting among parameter-specific items modifying information for a particular one of said environmental parameters and thereby modifying the detected magnitude with the selected information and for changing said items among which selection is made.
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Accused Products
Abstract
A multiplicity of environmental parameters, such as composition of the ambient atmosphere, temperature and air pressure, are concurrently measured with a portable device and registered together with information giving time and location of each measurement. The readings are interrelated parameters, e.g. temperature and relative humidity, may be jointly evaluated with adjustment of the stored values in light of one another; they may also be subjected to other corrections such as linearization, averaging or logarithmic conversion. A keyboard on the device enables the instantaneous readout of a selected parameter on a common display panel; detection of dangerous concentrations of noxious gases, e.g. firedamp in a coal mine, sets off an alarm.
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Citations
11 Claims
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1. A device for gathering information on enviromental conditions, comprising:
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a portable base; measuring means on said base for detecting the magnitudes of selected environmental parameters; chronometric means on said base; storage means on said base coupled with said measuring and chronometric means for registering a detected magnitude of a selected one of said environmental parameters together with the time of detection on a recording medium; coding means on said base for additionally registering on said recording medium the location of a device at the instant of said detection; and adjustment means interposed between said measuring means and said threshold means for modifying a detected magnitude in light of other information, said adjustment means including means for selecting among parameter-specific items modifying information for a particular one of said environmental parameters and thereby modifying the detected magnitude with the selected information and for changing said items among which selection is made. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification