Abstract: A fiber optic sensor apparatus includes an optical fiber, a fiber bend holder, and a sensing element. The optical fiber can be configured to form a transmit fiber path and a return fiber path by adhering the fiber bend holder to the center of the optical fiber in order to form a straight section between the transmit fiber path and the return fiber path. The optic fiber can be physically bent and adhered to tabs associated with the fiber bend holder. A cut can be precisely made in the center of the adhered straight section and the sensing element can be inserted into an optical path associated with the optical fiber.

Abstract: A fiber optic sensor apparatus includes an optical fiber, a fiber bend holder, and a sensing element. The optical fiber can be configured to form a transmit fiber path and a return fiber path by adhering the fiber bend holder to the center of the optical fiber in order to form a straight section between the transmit fiber path and the return fiber path. The optic fiber can be physically bent and adhered to tabs associated with the fiber bend holder. A cut can be precisely made in the center of the adhered straight section and the sensing element can be inserted into an optical path associated with the optical fiber.

Abstract: A shear sensor includes a stator structure, a transformer, and a ferromagnetic core. The stator structure distorts in two perpendicular axes upon application thereto of a shear force. The transformer is coupled to the stator structure, and includes a primary winding and a pair of differentially wound secondary windings. The ferromagnetic core is non-rotationally coupled to the stator structure and is at least partially surrounded by the primary and secondary windings. The core is spaced apart from the transformer stator poles to define an air gap between the core and the stator poles. The air gap varies in the two perpendicular axes upon application of the shear force to the stator structure.

Abstract: A shear sensor includes a stator structure, a transformer, and a ferromagnetic core. The stator structure distorts in two perpendicular axes upon application thereto of a shear force. The transformer is coupled to the stator structure, and includes a primary winding and a pair of differentially wound secondary windings. The ferromagnetic core is non-rotationally coupled to the stator structure and is at least partially surrounded by the primary and secondary windings. The core is spaced apart from the transformer stator poles to define an air gap between the core and the stator poles. The air gap varies in the two perpendicular axes upon application of the shear force to the stator structure.

Abstract: Systems and methods for regulating input to a sensor. A circuit receives an unregulated voltage signal and a reduced version of the unregulated voltage signal. These signals are regulated by separate regulators then compared. If the difference between the two regulated signals is greater than a threshold amount then no voltage signal is sent to an attached sensor. If the difference between the two regulated signals is less than a threshold amount then a regulated voltage signal is sent to the sensor.

Abstract: Methods and systems for simply and inexpensive converting the signals of solid-state sensors for use by analog systems and indicators. An embodiment of the system receives a DC voltage value from at least one sensor, converts the DC voltage value into one or more analog signals based on a reference AC voltage signal, and performs at least one of outputting or storing the generated analog signals. The conversion is performed digitally then converted to analog or is performed using an analog trigonometric converter.

Abstract: A gyroscope erection system uses an electrolytic tilt transducer (21) to modulate oscillator signals (OSC, OSC) originating from a signal conditioning circuit (27). The signal conditioning circuit (27) receives the modulated oscillator signal and compares one unmodated oscillator signal with the modulated oscillator signal from the tilt transducer (21), to provide a demodulated signal. The demodulated signal is used to provide direction and amplitude signals to a pair of multipliers (45, 47). Output from the multipliers (45, 47) are amplified in order to drive a torquer (25).