Abstract: Provided are a sensor unit and function activation method that make it possible to collectively activate the functions of a plurality of sensor units. A sensor unit 10, which can be connected to other sensor units 10 to form a unit series, comprises an activation unit 64 for activating a prescribed function on the basis of a signal from the outside and a signal output unit 65 for outputting a trigger signal for activating a prescribed function to the outside on the basis of a signal from the outside.

Abstract: Provided are a sensor unit and function activation method that make it possible to collectively activate the functions of a plurality of sensor units. A sensor unit 10, which can be connected to other sensor units 10 to form a unit series, comprises an activation unit 64 for activating a prescribed function on the basis of a signal from the outside and a signal output unit 65 for outputting a trigger signal for activating a prescribed function to the outside on the basis of a signal from the outside.

Abstract: An output device for a heat flow sensor includes an offset value calculation part configured to calculate an offset value for each gain magnification regarding a plurality of gain magnifications, an amplification part configured to amplify an output value of a heat flow sensor by a first gain magnification among the plurality of gain magnifications, an offset part configured to subtract the offset value corresponding to the first gain magnification from the amplified output value, and an A/D converter configured to convert the output value after subtraction thereof into a digital value.

Abstract: An optical fiber has an incident end on which light is incident, an emitting end from which the light is emitted, and an aperture provided in a core located at or near the emitting end. The aperture is formed by irradiating the core with an ultrashort pulsed laser beam having pulse widths of 10?15 seconds to 10?11 seconds.

Abstract: In a sensor system including a plurality of photoelectric sensor units, a light projecting period arbitrarily determined in each type is provided and mutual interference is prevented between identical types. The sensor system includes the plurality of sensor units coupled by a connector unit while a signal can be transmitted. Each of the sensor units retains type information thereof, and sets a unique identification number by transmitting the signal to each other. Each sensor unit operates after a delay time determined according to the identification number thereof elapses with a synchronous signal as a starting point. The synchronous signal is transmitted with a predetermined period from the sensor unit having a specific identification number in the plurality of sensor units. The delay time of each sensor unit is determined such that an operating period is matched with a predetermined period determined in each piece of the type information.

Abstract: The disclosure provides a photoelectric sensor that provides useful information to set measurement conditions. The photoelectric sensor includes a light emitting unit having a light emitting element configured to emit detection light toward a detection area, a light receiving unit having a light receiving element configured to receive the detection light from the detection area and to obtain a detection value corresponding to the amount of light received, and a display unit configured to display information about the detection value in the light receiving unit. When the detection value varies across a predetermined threshold, the display unit displays a transit time that is the time from when the detection value crosses the predetermined threshold until when it crosses the predetermined threshold again, and a variation amount of the detection value in the variation.

Abstract: A photoelectric sensor includes a phototransmitter that outputs light toward a detection target region of an object; an optical receiver that receives the light outputted from the phototransmitter; a signal processing unit that outputs a signal indicating that the object is detected in response to a decrease of an amount of light received by the optical receiver; and two optical filters that are provided between the phototransmitter and the optical receiver to transmit only pieces of light having specific characteristics.

Abstract: In a sensor system including a plurality of photoelectric sensor units, a light projecting period arbitrarily determined in each type is provided and mutual interference is prevented between identical types. The sensor system includes the plurality of sensor units coupled by a connector unit while a signal can be transmitted. Each of the sensor units retains type information thereof, and sets a unique identification number by transmitting the signal to each other. Each sensor unit operates after a delay time determined according to the identification number thereof elapses with a synchronous signal as a starting point. The synchronous signal is transmitted with a predetermined period from the sensor unit having a specific identification number in the plurality of sensor units. The delay time of each sensor unit is determined such that an operating period is matched with a predetermined period determined in each piece of the type information.

Abstract: The disclosure provides a photoelectric sensor that provides useful information to set measurement conditions. The photoelectric sensor includes a light emitting unit having a light emitting element configured to emit detection light toward a detection area, a light receiving unit having a light receiving element configured to receive the detection light from the detection area and to obtain a detection value corresponding to the amount of light received, and a display unit configured to display information about the detection value in the light receiving unit. When the detection value varies across a predetermined threshold, the display unit displays a transit time that is the time from when the detection value crosses the predetermined threshold until when it crosses the predetermined threshold again, and a variation amount of the detection value in the variation.

Abstract: A sensor device has a display part that displays a numerical value and a character on a casing and at least three switches. The switches have an up switch and a down switch. The up switch has a function of changing the numerical value to increase and also the down switch has a function of changing the numerical value to decrease. Each switch has a different function and each switch has a different symbol.

Abstract: An optical fiber has an incident end on which light is incident, an emitting end from which the light is emitted, and an aperture provided in a core located at or near the emitting end. The aperture is formed by irradiating the core with an ultrashort pulsed laser beam having pulse widths of 10?15 seconds to 10?11 seconds.

Abstract: A photoelectric sensor includes a phototransmitter that outputs light toward a detection target region of an object; an optical receiver that receives the light outputted from the phototransmitter; a signal processing unit that outputs a signal indicating that the object is detected in response to a decrease of an amount of light received by the optical receiver; and two optical filters that are provided between the phototransmitter and the optical receiver to transmit only pieces of light having specific characteristics.

Abstract: A photoelectric sensor has a light projection unit having a light emission element for emitting detection light to a detection region; a light reception unit having a light reception element receiving light from the detection region to obtain a detection value corresponding to an amount of received light; a target value storage unit for storing an adjustment target value for a detection value; a sensitivity adjustment unit for adjusting a power of the detection light emitted from the light projection unit and/or a conversion factor from the amount of received light in the light reception unit to the detection value, thereby matching the detection value with the target value; and an adjustment instruction unit for instructing execution of adjustment to the sensitivity adjustment unit.

Abstract: An optical fiber photoelectric sensor unit comprising: two sets of light-emitting and light-receiving circuits corresponding to a first and second detection channels; a single CPU which performs detecting operations of the two detection channels by time sharing; two output lines corresponding to the two detection channels; four fiber inlets aligned vertically on the front surface, a first and second digital display parts which each display a string of digits in the longitudinal direction of the case and which are aligned on the top surface in the longitudinal direction of the case.

Abstract: An optical fiber photoelectric sensor unit comprising: two sets of light-emitting and light-receiving circuits corresponding to a first and second detection channels; a single CPU which performs detecting operations of the two detection channels by time sharing; two output lines corresponding to the two detection channels; four fiber inlets aligned vertically on the front surface, a first and second digital display parts which each display a string of digits in the longitudinal direction of the case and which are aligned on the top surface in the longitudinal direction of the case.

Abstract: The present invention provides a photoelectric sensor which is easy to adjust plural photoelectric sensors including itself so as to have similar detection characteristics and, also, easy to set an evaluation reference such as a threshold value for a detection value in a case where a single photoelectric sensor is used alone.

Abstract: The sensor unit (1) of the present invention comprises a housing (2) which is adapted to be mounted on a DIN rail (10) closely one next to another as a sensor unit array, and to be connected to a sensor head (4a and 5a) via a cable (4 and 5).