SYSTEM AND METHOD FOR REMOTE TEMPERATURE MEASUREMENTS IN A HARSH ENVIRONMENT

摘要

A temperature sensing device includes a probe unit on a first end and a sensor unit on a second end opposite the first end. The first end is introduced into an environment to be measured, such as an exhaust gas line from a combustion engine, and the second end is positioned in a region outside of the environment such that the sensor unit is at least partially insulated from a temperature of the environment. The probe unit, exposed to the temperature of the environment, achieves a temperature that corresponds to the temperature of the environment. The sensor unit is operable to sense the temperature of the probe unit and generate a corresponding electrical signal usable to determine a sensed temperature of the environment. The temperature of the environment can be determined on a cycle-by-cycle basis, and is usable for implementing advanced combustion strategies such as HCCI and SACI.

主权项

1. A temperature sensing device, comprising:
a housing that includes:
a first end portion; anda second end portion opposite the first end portion, the first and second end portion defining an interior of the housing;the housing being configured to be arranged with the first end portion located within an environment to be measured and the second end portion located outside the environment; a probe unit that is attached to the first end portion and that is configured to be exposed to the environment when the first end portion is located within the environment such that a temperature of the probe unit corresponds to a temperature of the environment; and a sensor unit that is attached to the second end portion and spaced apart from the probe unit with the interior positioned therebetween, such that the sensor unit is configured to be positioned outside of the environment when the first end portion is located within the environment; the sensor unit being further configured to:
sense the temperature of the probe unit; andgenerate an electrical signal indicative of the sensed temperature of the probe unit.