Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1996-07-11
1998-07-07
Bennett, G. Bradley
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
374166, 364557, G01K 700
Patent
active
057758093
ABSTRACT:
A mobile or transportable refrigerated container temperature monitoring system which includes digital monitoring and printout devices which provide accuracy and reliability, and means for periodically checking the monitoring means for operability and logging the results. An analog to digital converter is utilzed to convert analog temperature data obtained from thermistor sensors to digital form to provide digital data readout and to drive a digitally responsive printer. Sensing and control devices are provided to prevent printer jamming and compensate for widely varying temperature conditions. Automatically activated testing devices are provided which test and record the functionality of the thermistor temperature sensors by periodically applying a predetermined heat input to the thermistor temperature sensors and recording the responses including responses indicating errors, insuring reliability of the outputted recorded temperature data and pinpointing any improperly functioning sensors. A visual display is provided to indicate to the operator the state of the system. A microprocessor controller is utilized to receive temperature and other data and to control the printer and display. A keypad is provided for inputting desired data to the system via the microprocessor, such as start and finish transport dates and times, cargo, points of origin and destination, operator's identification, consignor and consignee, or any other pertinent information.
REFERENCES:
patent: 2873607 (1959-02-01), Van Kuyk
patent: 2975629 (1961-03-01), Herbert
patent: 4130019 (1978-12-01), Nitschke
patent: 4176554 (1979-12-01), Kazmierowicz
patent: 4406550 (1983-09-01), Gray
patent: 4455095 (1984-06-01), Bleiker
patent: 4699519 (1987-10-01), Persson
patent: 4901061 (1990-02-01), Twerdochlib
patent: 5171091 (1992-12-01), Kruger et al.
Bischoff Lawrence C.
Cooley Harold J.
Delany Ernest W.
Pagano Frank
Sitcoske Mark A.
Bennett G. Bradley
Measurement Dynamics LLC
Udell Walter B.
LandOfFree
Vehicle compartment temperature recorder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle compartment temperature recorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle compartment temperature recorder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1198390