摘要:
A first embodiment of a condition responsive capacitive transducer, such as an accelerometer (1), is shown in which an electrically conductive sensor element (14) is sandwiched between upper (10) and lower (12) electrically insulative planar substrates and mounted in sealed, spaced apart relation by patterns (16) of adhesive containing spacing elements. A second embodiment (100) includes a signal conditioning capacitor having plate portions (114r, 120b and 114s, 120c) on either side of a condition responsive capacitor to minimize errors caused by translational movement of the sensor element (114) relative to the substrates (110, 112). Circuit conditioning electronics (124) is shown mounted directly on one of the substrates (110) and the sensor is mountable directly on a circuit board. A third embodiment (200) shows differential capacitors (224, 226, 228, 230, 232, 234) for minimizing errors due to misalignment of the movable element (114) with respect to the fixed supports (210, 212). Another embodiment provides a material system for use in condition responsive capacitive transducers having refractory metal for a sensing element and glass material for a supporting substrate.
摘要:
A condition responsive capacitive transducer, such as an accelerometer, is shown using a material system having refractory metal for the sensing element and glass material for a supporting substrate. The refractory metal is preferably tungsten, tantalum or molybdenum, and is coated with a glass seal enhancing material, such as titanium or nickel.
摘要:
A small form factor Microfused Silicon Strain gage (MSG) sensor incorporates an offset spring and feed-in features. A pressure sensor includes a spring having first and second coiled sections offset by a coiled center section in a middle that is used to make offset contact between two electrical contact pads.
摘要:
An input device includes a plurality of orientation blocks each representing a portion of a catheter assembly and a controller configured to determine an orientation of the plurality of orientation blocks relative to one another. The controller is further configured to output a control signal that causes a tip of a catheter assembly to adopt the orientation determined by the controller. A system includes an actuator configured to manipulate a position and orientation of the catheter assembly. The controller of the input device is configured to output a control signal to the actuator to make a tip of a catheter assembly adopt the orientation determined by the controller. The input device can be virtually represented on a computing device.
摘要:
The present invention relates to a thermostable polymer electrolyte membrane which comprises a main chain comprising an alicyclic polybenzimidazole and a graft chain added to the main chain by radiation-induced graft polymerization, wherein at least a part of the graft chain has sulfonic acid groups. The thermostable polymer electrolyte membrane of the invention is used for many apparatuses such as polymer electrolyte fuel cells or water electrolysis devices, in which the electrolyte membrane exhibits high proton conductivity, low fuel permeability, high oxidation resistance and superior mechanical property under operation conditions at high temperature. The present invention also provides a simple and low-cost process for producing the same.
摘要:
A small form factor Microfused Silicon Strain gage (MSG) sensor incorporates an offset spring and feed-in features. A pressure sensor includes a spring having first and second coiled sections offset by a coiled center section in a middle that is used to make offset contact between two electrical contact pads.