Sensata Technologies, Inc.

Paul Gennissen

Robert Zwijze

Wico Hopman

Cris Ruiz Zwollo

Maarten Van Noorden

George Van Der Donk

Jans Kruise

Siebe Berveling

Gregory Lyons

Murray Mctigue

Methods and apparatuses for failure mode detection in a contactor are disclosed. In a particular embodiment, a method for failure mode detection in a contactor includes maintaining the contactor command signal in the open state; connecting the contactor to a voltage supply that supplies a first predetermined voltage amount to the contactor; measuring a first amount of time for a magnitude of a coil current of the coil to exceed a first predetermined current threshold; determining whether the first amount of time exceeds a first predetermined time threshold; responsive to determining that the first amount of time does not exceed the first predetermined time threshold, determining that the contactor is in the open state; and responsive to determining that the first amount of time exceeds the first predetermined time threshold, determining that the contactor is in the closed state.

Failure mode detection in a contactor

The invention relates to a fluid pressure sensing device comprising a pressure sensing transducer having a support structure and a diaphragm attached to said support structure, the diaphragm having a fluid facing side. A housing has a transducer receiving cavity defined by a bottom wall and a housing sidewall extending upwardly from the bottom wall. The bottom wall is formed with a fluid pressure receiving recess. A fluid pressure port is formed in the housing in communication with the recess. The diaphragm is positioned between the support structure and the fluid pressure receiving recess and a seal material around a support structure sidewall fixes the pressure sensing transducer in the housing and provides a hermetic seal.

Hermetically sealed pressure sensing device

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Markelo, Netherlands

Paul Gennissen