摘要:
The types of gasolines having different distillation characteristics and various compositions are identified accurately and rapidly. A pulse voltage is applied for a predetermined time to a liquid type identifying sensor heater including a heater and an identifying liquid temperature sensor provided in the vicinity of the heater. Then, a gasoline to be identified is heated by the heater, and a liquid type is identified with a voltage output difference V0 corresponding to a temperature difference between an initial temperature and a peak temperature in the identifying liquid temperature sensor.
摘要:
A thermal flowmeter is provided with a flow rate detecting unit (4) containing a heating element, a flow rate detecting temperature sensing element and a flow rate detecting electroconductive fin plate (44) extending into a fluid flow passage (3), which are disposed so as to enable heat transfer therebetween, the flow rate detecting temperature sensing element varying in electrical characteristic value in accordance with the flow of the fluid in the fluid flow passage (3); and, a fluid temperature detecting unit (6) containing a fluid temperature detecting temperature sensing element and a fluid temperature detecting electroconductive fin plate (44′) extending into the fluid flow passage (3), which are disposed so as to enable heat transfer therebetween, the fluid temperature detecting temperature sensing element varying in electrical characteristic value in accordance with the temperature of the fluid. The flow rate of the fluid is detected on the basis of the electrical characteristic values of the flow rate detecting and fluid temperature detecting temperature sensing elements, and a fluid discrimination is effected by determining a conductivity between the flow rate detecting and fluid temperature detecting fin plates (44, 44′). According to this thermal flowmeter, with simple constitution, discrimination of whether the fluid is the required one or not is effected so that passage of erroneous fluid can be avoided.
摘要:
A container is held between a conveyor and guide means provided around the conveyor and the guide means come in frictional contact with the container to rotate the container around its own axis as the conveyor runs in its circumferential path. The conveyor is partially water-immersed within a water tank and the container being rotated by cooperation of the conveyor and the guide means within the water tank is applied on its side wall with ultrasonic waves from ultrasonic vibrators serving to flush the container.The conveyor is provided on its outer peripheral surface with fin-like projections vertically extending and circumferentially spaced from one another at regular intervals and there are provided around the conveyor upper rails, sloped rails and lower rails serving to support the bottom of the container. There may be provided guide means associated with the respective rails. Only the lower rails are immersed in water.There may be provided above the conveyor a nozzle serving to fill the container with flushing liquid such as water and there may be provided a heater below the water tank to enhance a flushing effect.
摘要:
A chrysoberyl solid laser host which comprises a chrysoberyl matrix doped with trivalent titanium ions for luminescence is described. This host ensures a lasing operation over a wide wavelength range and is highly producible and high in quality.
摘要:
A speaker includes a frame, a magnetic circuit secured to the frame, a voice coil, a damper, and a diaphragm. The voice coil is inserted in a magnetic gap of the magnetic circuit. The damper is secured to the voice coil and the frame and formed with a plurality of corrugations. The diaphragm is secured to the frame and the voice coil. One of the plurality of corrugations located on an inner circumferential side of the damper is provided with a plurality of apertures, and these apertures are covered by an elastic member.
摘要:
An acoustic exciter comprises a suspension made of an elastic material, which is coupled to the opening part of a frame, and a vibrator to which a voice coil disposed in the magnetic gap of a magnetic circuit connected to the suspension is coupled. An elastic body is so disposed between the frame and the vibrator as to be pressed against the frame and the vibrator. Thereby, the exciting efficiency of the vibrator can be increased, and the performance and tone quality of the acoustic exciter can be improved.
摘要:
A speaker includes a magnetic circuit 1 that is formed in the center of a frame 5, a voice coil 6 that is inserted in a magnetic gap of the magnetic circuit 1, a damper 7 that is fixed to the frame 5 and the voice coil 6, and a vibrating plate 8 that is fixed to the frame 5 and the voice coil 6. An opening 10 is provided in a bobbin 12 of the voice coil 6. The area of the opening 10 is 0.3% or less of the radial cross-sectional area of the bobbin 12 of the voice coil 6.
摘要:
A loudspeaker includes a frame coupled to a magnetic circuit, a cone diaphragm coupled to an outer periphery of the frame, a voice coil coupled to the cone diaphragm, the voice coil having a portion placed in a magnetic gap of the magnetic circuit, a tubular port having an end coupled to the voice coil, and a diameter of another end of the tubular port is larger than a diameter of a connecting portion at which the end of the tubular port is coupled to the voice coil, and a dome covering an upper end of the tubular port. A center axis of the tubular port inclines at least by 5° with respect to a center axis of the voice coil.
摘要:
Disclosed is a method for producing a synthetic resin mold package at high yield from which package a pair of the surface of an internal device is exposed. A to-be-exposed part of the surface of the internal device composed of an insulating substrate (2) and thin film electrodes (4, 5) and an insulating protective film (6) formed on the substrate is covered with a coating agent (42), and a die pad portion (8) is bonded to the back surface of the internal device. After placing the thus-obtained structure in a mold consisting of a lower mold (46) and an upper mold (48), a pin (50) is inserted into the mold so that the front end of the pin is pressed against the die pad portion (8), thereby keeping the surface of the coating agent (42) pressed against the inner surface of the upper mold (48). Then, a synthetic resin (52) is injected into the mold and cured therein. The thus-obtained resin sealed body is taken out from the mold, and the coating agent (42) is removed from the resin sealed body.
摘要:
A speaker includes magnetic circuit 1 that is formed in the center of frame 5, voice coil 6 that is inserted in a magnetic gap of magnetic circuit 1, damper 7 that is fixed to frame 5 and voice coil 6, and vibrating plate 8 that is fixed to frame 5 and voice coil 6. Opening 10 is provided in bobbin 12 of voice coil 6. The area of opening 10 is 0.3% or less of the radial cross-section area of bobbin 12 of voice coil 6.