Temperature sensor

A temperature sensor comprising:

• a housing;
• a temperature sensing element disposed in said housing, said temperature sensing element comprising a resistive temperature detector comprising a metal film disposed on at least one substrate;
• a particulate media disposed in said housing and at least partially around said temperature sensing element, said particulate media consisting essentially of a blend of first particles and second particles, said first particles and said second particles being the same material, said second particles having a mesh size of about 71% or less of the mesh size of said first particles, whereby an interstitial volume is established between said first particles and said second particles, said interstitial volume entraining an amount of oxygen sufficient to avoid a reducing atmosphere in said housing;
• and
• a body portion, said housing being coupled to said body portion to seal said temperature sensing element and said particulate media therein.

A temperature sensor comprising:

• a housing;
• a temperature sensing element disposed in said housing, said temperature sensing element comprising a resistive temperature detector comprising a metal film disposed on at least one substrate;
• and
• a particulate media disposed in said housing and at least partially around said temperature sensing element, said particulate media consisting essentially of a blend of first particles and second particles, said first particles and said second particles being the same material, said second particles having a mesh size of about 71% or less of the mesh size of said first particles, whereby an interstitial volume is established between said first particles and said second particles, said interstitial volume entraining an amount of oxygen sufficient to avoid a reducing atmosphere in said housing.

A system comprising:

• an engine
• an exhaust system configured to carry exhaust gases from said engine;
• a temperature sensor coupled to said exhaust system for detecting a temperature of said exhaust gases, said temperature sensor comprising
• a housing,
• a temperature sensing element disposed in said housing, and
• a particulate media disposed in said housing and at least partially around said temperature sensing element, said particulate media consisting essentially of a blend of first particles and second particles, said first particles and said second particles being the same material, said second particles having a mesh size smaller than a mesh size of said first particles, whereby an interstitial volume is established between said first particles and said second particles, said interstitial volume entraining an amount of oxygen sufficient to avoid a reducing atmosphere in said housing;
• and
• a vehicle control system configured to controlling at least one operating parameter of the engine in response to an output of said temperature sensor.

A temperature sensor comprising:

• a housing having one or more interior surfaces that are pre-oxidized;
• a temperature sensing element disposed in said housing;
• and
• particulate media disposed in said housing and at least partially around said temperature sensing element, said particulate media consisting essentially of a blend of first particles and second particles, said first particles and said second particles being the same material, said second particles having a mesh size of about 71% or less of the mesh size of said first particles, whereby an interstitial volume is established between said first particles and said second particles, said interstitial volume entraining an amount of oxygen sufficient to avoid a reducing atmosphere in said housing.