Abstract: A radiation sensor of the type that acquires a charge or voltage proportil to a dose of radiation. Upon obtaining a predetermined value to the associated voltage proportional to the dose, the voltage is caused to be discharged. A counter keeps track of the number of discharges which is proportional to the total dose of radiation to which the radiation sensor has been exposed. The radiation sensor is thereby prevented from achieving a high charge or voltage which affects the accuracy of the radiation sensor. A calculator and a clock are used to display the value of the dose in any convenient way, such as in relation to tissue dose or average dose rate for a given period of time.

Abstract: A battery connector for use in a battery having an inner sensor circuit in rder to turn on and shut off the inner sensor circuit automatically when respectively connecting and disconnecting the battery for extending the battery storage shelf life. The battery connector includes a metal connector pin, a socket receiving the pin having a first metal positive conductor and having a second metal sensor circuit conductor, an insulator between the conductors, and a bridge for electrical conduction past the insulator between the first and second conductors and between the first conductor and the pin.

Abstract: Drive signals generated at a single location are utilized to derive localized clock signals at several locations. The drive signals are phase shifted and have identical frequencies, while the clock signals derived therefrom are some frequency multiple thereof.

Abstract: The invention disclosed herein is a fiber optic switch which utilizes Kerr ells to change the polarization of light passing through a pair of polarizers when an electric field is applied to the Kerr cell. The fiber optic switch is comprised of a pair of transparent polarized panels which have the same index of refraction, a pair of transparent electrodes which are electrically connected to a power source and an electric switch and which are sandwiched between the transparent polarized panels, and a layer of anisotropic material which fills the space between the electrodes.