Abstract:
A wafer holding apparatus (10, 10', 100, 200) for fixing a wafer (12) having a central portion (14) and a circumference portion (16) includes a holding platform (18), a lift stage (20, 102, 202), and a fixing device (22, 22'). The holding platform (18) has a hole structure (24) and a support rib (26) protruding inwardly from an inner wall (25) of the hole structure (24). The lift stage (20, 102, 202) includes a support platform (30, 104, 204) and a driving arm (32) connected to the support platform (30, 104, 204) for driving the support platform (30, 104, 204) to ascend or descend. When the support platform (30, 104, 204) ascends to a support position to support the wafer (12), the central portion (14) is flat on the support platform (30, 104, 204) to make the circumference portion (16) flat on a top surface (27) of the support rib (26) in a surface contact manner. The fixing device (22, 22') is for fixing the circumference portion (16) to the top surface (27). After the circumference portion (16) is fixed to the support rib (26), the lift stage (20, 102, 202) descends to a retracted position.
Abstract:
An optical gas sensing apparatus includes an explosion-rated device electronics enclosure. An explosion-rated sensing enclosure has a light transmitting element to allow light to pass out of and into the sensing enclosure. The sensing enclosure is operably coupled to the explosion-rated device electronics enclosure by a feed-through. In one aspect, an internal volume of the sensing enclosure is less than or equal to about one fiftieth of the volume of the explosion-rated device electronics enclosure. In another aspect, the thickness of the light transmitting element is less than or equal to about 3 millimeters. A light source is disposed within the sensing enclosure and is operably coupled to the device electronics. A detector is disposed within the sensing enclosure and is also operably coupled to the device electronics.
Abstract:
A cell observation system 1 is a cell observation system 1 for observing a cell held by a microplate 20 having a plurality of wells 21 arranged therein for holding a sample S including the cell and comprises a microplate holder 11 for mounting the microplate 20, an electrical stimulator 16 arranged with a plurality of electrode pairs 17 including positive and negative electrodes 17b, 17a, and a data analyzer 50 for controlling a position of the electrical stimulator 16 so as to place the electrode pairs 17 within the wells 21 of the microplate 20, while a leading end of the negative electrode 17a on the well 21 side extends longer than a leading end of the positive electrode 17b on the well 21 side.
Abstract:
A method of measurement of agrotechnical spraying, in which parts of a plant covered with chemical substances, in particular agrochemicals, are analyzed by comparison with references present in a database, characterize in that UV radiation is used in excitation bands 280 nm, 300 nm, 340 nm, 400 nm and 450 nm, exposed cyclically in turn for about 10 milliseconds to perform at least 20 measurements of the spectres of excited luminescence of a sprayed plant sample, after which a plant and chemical substance are identified by comparing the obtained spectra with the references contained in a computer database, and through the analysis of the amplitude of the signals of the chemical substance, its amount on the tested plant sample is determined. The invention enables identification and quantification of the amounts of the substance when spraying cultivated plants with agrochemicals, also after the process of evaporation and after penetration of agrochemicals into plants.
Abstract:
Provided is a fire detector in which an element substrate can be easily removed from and mounted into an optical case. The fire detector includes: an optical case (21); an element substrate (31), on which a light-receiving element (12) is mounted, the element substrate (31) being provided in the optical case (21); a signal line (35) passing through an introduction portion of a peripheral wall (21a) of the optical case (21), the signal line (35) being connected to the element substrate (31); and an optical cover (30) for closing an opening of the optical case (21), in which the signal line (35) is inserted into a slit (37) which is open on an upper end surface (21f) of the introduction portion of the peripheral wall (21a).
Abstract:
Provided is a fire detector in which an element substrate can be easily removed from and mounted into an optical case. The fire detector includes: an optical case (21); an element substrate (31), on which a light-receiving element (12) is mounted, the element substrate (31) being provided in the optical case (21); a signal line (35) passing through an introduction portion of a peripheral wall (21a) of the optical case (21), the signal line (35) being connected to the element substrate (31); and an optical cover (30) for closing an opening of the optical case (21), in which the signal line (35) is inserted into a slit (37) which is open on an upper end surface (21f) of the introduction portion of the peripheral wall (21a).
Abstract:
Various embodiments of a light detection device and a method of using the device are disclosed. In one or more embodiments, the light detection device can include a housing that extends along a housing axis between top and bottom surfaces. The device can also include a port that is adapted to receive a sample, and a door connected to the housing. The door can include an actuator portion adapted to selectively move the door between a closed position and an open position, and a cover portion connected to the actuator portion and adapted to close the port when the door is in the closed position and open the port when the door is in the open position to allow external access to the port.
Abstract:
A sample acquiring device, an apparatus and a method for spectrophotometric measurement of high density lipoprotein (HDL) and at least one of total cholesterol (TC), triglycerides (TG) and glucose (FPG).