摘要:
A reverse bias voltage is applied to a photodiode array provided with a plurality of avalanche photodiodes operated in Geiger mode and with quenching resistors connected in series to the respective avalanche photodiodes. Electric current is measured with change of the reverse bias voltage applied, and the reverse bias voltage at an inflection point in change of electric current measured is determined as a reference voltage. A voltage obtained by adding a predetermined value to the determined reference voltage is determined as a recommended operating voltage.
摘要:
A reverse bias voltage is applied to a photodiode array provided with a plurality of avalanche photodiodes operated in Geiger mode and with quenching resistors connected in series to the respective avalanche photodiodes. Electric current is measured with change of the reverse bias voltage applied, and the reverse bias voltage at an inflection point in change of electric current measured is determined as a reference voltage. A voltage obtained by adding a predetermined value to the determined reference voltage is determined as a recommended operating voltage.
摘要:
A photodetecting circuit using an avalanche photodiode of the present invention has an avalanche photodiode, and a bias control means for applying a bias voltage to the avalanche photodiode to drive the avalanche photodiode at a high multiplication factor. The bias control means has a diode having the same temperature dependence of a breakdown voltage as that of the avalanche photodiode, and a control circuit for applying positive and negative potentials with respect to the ground potential between the anode and the cathode of the diode such that the diode is set in a breakdown state at a predetermined current. A positive or negative potential is applied from one of the anode and the cathode of the avalanche photodiode as a bias voltage, and a photocurrent is output from the other terminal of the avalanche photodiode.
摘要:
A bias circuit for applying a bias voltage to an avalanche photodiode APD2 for detecting light comprises a first diode APD1, a power supply V.sub.H connected to the first diode APD1, for applying a voltage to make the diode in breakdown between an anode and a cathode of the first diode APD1, and a constant voltage circuit V2 connected to the avalanche photodiode APD2 for detecting light, for applying a voltage difference of a breakdown voltage generated between the anode and the cathode of the first diode APD1 minus a constant voltage to the avalanche photodiode. The constant voltage is substantially independent from current flowing in the avalanche photodiode APD2 for detecting light to the avalanche photodiode.
摘要:
There is provided a culture observation system by which an approximate dimension of cells which are observed by a microscope while being cultured can be recognized at one view. A culture observation system according to the invention includes a culturing cabinet 2 for forming an environment suitable for culturing cells, an image pick-up device 3 for photographing a microscopic image of the cells, a display 4 for displaying the photographed microscopic image, and a computer 5 for controlling the display of the display 4. The computer 5 movably displays a predetermined scale in the microscopic image displayed on the display means 4.
摘要:
A medicine supply apparatus which comprises, in a case accommodating section 8, a plurality of tablet cases 3 for accommodating medicine and charges or supplies medicine into a bag 72, which medicine has been discharged from each tablet case 3 based on a prescription. An identification code 26 is provided for each of the tablet cases 3 and read by an optical sensor 33 provided inside the case accommodating section 8, whereby discharge of medicine is controlled. A motor 14 for driving a discharge drum for the tablet case 3 is checked for disconnection by being regularly energized. The operating time and the frequency of operation of parts that wear out, such as the motors, are stored for use in failure prediction. Time slots in which medicine should be taken are printed, each in a different color, by a color printing mechanism 73 on the bag 72 into which medicine is charged.
摘要:
A centralized-monitoring apparatus, which centralized monitors a device including a storage, a temperature sensor to detect a temperature therein, and a temperature-variable device to cool or heat inside the storage such that the temperature reaches a set object-preservation temperature, comprises: an input device to be input with first information indicative of a time zone in which the temperature-variable device performing power-saving operation and second information indicative of a set temperature of the time zone; a storage device to store the first-and-second information from the input device; a timing device to measure a current time; and a control device to control the temperature-variable device, based on the first-and-second information and current time, so as to start operation of turning the temperature to the set temperature when the current time reaches a starting time of the time zone, and terminate the operation when the current time reaches an ending time thereof.
摘要:
A medicine supply apparatus which comprises, in a case accommodating section 8, a plurality of tablet cases 3 for accommodating medicine and charges or supplies medicine into a bag 72, which medicine has been discharged from each tablet case 3 based on a prescription. An identification code 26 is provided for each of the tablet cases 3 and read by an optical sensor 33 provided inside the case accommodating section 8, whereby discharge of medicine is controlled. A motor 14 for driving a discharge drum for the tablet case 3 is checked for disconnection by being regularly energized. The operating time and the frequency of operation of parts that wear out, such as the motors, are stored for use in failure prediction. Time slots in which medicine should be taken are printed, each in a different color, by a color printing mechanism 73 on the bag 72 into which medicine is charged.
摘要:
A medicine supply apparatus which comprises, in a case accommodating section 8, a plurality of tablet cases 3 for accommodating medicine and charges or supplies medicine into a bag 72, which medicine has been discharged from each tablet case 3 based on a prescription. An identification code 26 is provided for each of the tablet cases 3 and read by an optical sensor 33 provided inside the case accommodating section 8, whereby discharge of medicine is controlled. A motor 14 for driving a discharge drum for the tablet case 3 is checked for disconnection by being regularly energized. The operating time and the frequency of operation of parts that wear out, such as the motors, are stored for use in failure prediction. Time slots in which medicine should be taken are printed, each in a different color, by a color printing mechanism 73 on the bag 72 into which medicine is charged.
摘要:
A dezincing apparatus according to the present invention is provided with an inductive heating container 50, inductive heating coils 60, 61, and a hollow pipe 70. The inductive heating container 50 has a feeding port into for feeding a scrap steel plate 41, and is an outer container of the dezincing apparatus 2. The inductive heating coils 60, 61 are wound around the outer periphery of the inductive heating container 50, and are connected to a high-frequency power supply. The hollow pipe 70 is a hollow rod body erected at the center of the inductive heating container 50, and is made of alloy steel. A reducing atmosphere is established in the container by the feeding of a carbon-containing material 42, or the like. Slits 71, 72, 73 for discharging zinc vapor or the like to the outside are formed in the hollow pipe 70.