The present disclosure relates to a method of manufacturing a tamper proof light emitting module comprising the steps of (a) pre-assembling the light emitting module into a testing configuration including a housing and one or more light emitting elements mounted within the housing, the housing including first and second housing components connected together using at least one removable fastener connecting the first and second housing components; (b) testing the light emitting module to confirm the light emitting elements are operable; (c) after step (b), removing the removable fastener; (d) replacing the removable fastener removed in step (c) with at least one breakaway fastener; and (e) tightening the breakaway fastener(s) until the head of the breakaway fastener(s) breaks off so that the breakaway fastener(s) is no longer removable, thereby creating a final, tamper proof configuration of the light emitting module.

The present disclosure relates to a method of manufacturing a tamper proof light emitting module comprising the steps of (a) pre-assembling the light emitting module into a testing configuration including a housing and one or more light emitting elements mounted within the housing, the housing including first and second housing components connected together using at least one removable fastener connecting the first and second housing components; (b) testing the light emitting module to confirm the light emitting elements are operable; (c) after step (b), removing the removable fastener; (d) replacing the removable fastener removed in step (c) with at least one breakaway fastener; and (e) tightening the breakaway fastener(s) until the head of the breakaway fastener(s) breaks off so that the breakaway fastener(s) is no longer removable, thereby creating a final, tamper proof configuration of the light emitting module.

An illumination device is provided. The illumination device includes a light source and a current path configured to transport a supply current to the light source. Further, the illumination device includes a sensor configured to contactlessly measure a current strength of the supply current in the current path and to output a measurement signal indicative of the measured current strength. The illumination device additionally includes processing circuitry coupled to the sensor and configured to determine the optical output power of the light source based on the measured current strength indicated by the measurement signal.

A battery device in one aspect of the present disclosure comprises a battery, a cell voltage monitoring part, a power supply line, a plurality of monitor lines, and an interrupter. The interrupter interrupts the power supply line and all of the plurality of monitor lines when the battery enters an overdischarge state.

Provided are a power device, a sensor which measures a physical state of the power device to transmit a signal according to the physical state, a main electrode terminal through which a main current of the power device flows, a sensor signal terminal which is connected to the sensor to receive a signal from the sensor, a driving terminal which receives driving power for driving the power device, and an open bottomed case which houses the power device, the sensor, the main electrode terminal, the sensor signal terminal and the driving terminal, the sensor signal terminal and the driving terminal each having a first terminal and a second terminal which are provided away from an inner side wall surface of the case, the first and second terminals electrically conducting to each other to form a double structure.

A light-emitting diode (LED) luminaire comprises an emergency-operated portion comprising a rechargeable battery with a terminal voltage, a self-diagnostic circuit, and a node modulator-demodulator (MODEM). The LED luminaire can auto-switch from a normal power to an emergency power according to availability of the normal power and whether a rechargeable battery test is initiated. The self-diagnostic circuit comprises a clock and is configured to initiate self-diagnostic tests and to auto-evaluate battery performance according to test schedules with the terminal voltage examined and test results stored. The LED luminaire further comprises a remote controller configured to initiate control signals with phase-shift keying (PSK) signals transmitted and to collect test data to and from the node MODEM. The node MODEM is configured to demodulate the PSK signals and to send commands to the self-diagnostic circuit to request responses accordingly.

A master generator is configured to use a duty upper limit value and a duty lower limit value to perform duty restriction processing on a PWM signal in continuous Y cycles out of generated X cycles, and transmit the PWM signal after the restriction processing to a slave generator. The slave generator is configured to receive the PWM signal after the restriction processing transmitted from the master generator as a received PWM signal, and determine that a reception abnormality exists when the received PWM signal is received as a signal representing a duty less than the duty lower limit value or a duty more than the duty upper limit value in continuous (X−Y+1) cycles.

A sealed secondary battery deterioration diagnosis method comprising a step of detecting deformation of said sealed secondary battery and obtaining a first curved line representing a relationship between a discharged capacity from a fully charged state or a charged capacity up to the fully charged state and a detected deformation amount of said sealed secondary battery, a step of obtaining a second curved line representing a relationship between the charged/discharged capacity and a slope of said first curved line, and a step of determining that the battery is in a deterioration mode brought about by enlargement of reaction distribution when the charged/discharged capacity calculated on the basis of a width of a peak appearing on said second curved line is larger than the charged/discharged capacity calculated on the basis of a width of a corresponding peak in the predetermined reference state.

A device for measuring electrical properties of electrical contacts within an electroplating apparatus has a disc-shaped structure like that of a wafer. Multiple conductive pads are formed to collectively circumscribe an outer periphery of the disc-shaped structure. Adjacently positioned ones of the conductive pads are electrically isolated from each other. The device includes a current source that supplies electric current at a first terminal and sinks electric current at a second terminal. The device includes measurement circuitry, having first and second input terminals, that determines a value of an electrical parameter based on signals present at the first and second input terminals. The device includes switching circuitry for connecting selected ones of the conductive pads to the first and second terminals of the current source and to the first and second input terminals of the measurement circuitry at a given time. The device also includes an onboard power supply.

A measurement arrangement and method for providing at least one combined measurement dataset, said measurement arrangement comprising at least one measurement device configured to generate measurement data in a measurement session, and a mobile device configured to generate measurement session context data of said measurement session, said measurement device and said mobile device being connected via at least one wireless link for data transfer, wherein the measurement data generated by said measurement device and associated measurement session context data generated by said mobile device are linked to provide a combined measurement dataset.