摘要:
An electrical hair dryer (5) comprises a housing (10) with an air inlet (11) and an air outlet (12) between which are arranged a mechanism for delivering a flow of hot air, comprising an air circulation mechanism (13) and air heating mechanism (14), and detection mechanism (20) for measuring a radiation emitted by the hair (8). The hair dryer also includes a control mechanism (18) which jointly acts on the air circulation 13) and the heating (14) mechanisms, for regulating the flow of hot air during drying as a function of the measurements of the emitted radiation, which effects simultaneous variation in the flow rate and temperature of the air flow as a result of the measurements of the emitted radiation.
摘要:
A cook-top (10) includes a plurality of heating elements (11a, 12a) which are activated by function controls. The heating elements are covered by a plate (15) which are fixedly connected to strain-guage modules (30) which detect the forces exerted on the plate as a result of loads placed on the heating elements. By computing the center of gravity of the forces, controls (70, 75, 76) identify a heating element whose load has varied and influence its electric power supply. The power supply may then be turned off, reduced or controlled. The function controls may be pressure-sensitive touch controls.
摘要:
An optical relay transmits light in dependence on an electric field parallel to the direction of propagation of the light toward a target having a first face which is scanned by an electron beam. An anode collects the secondary electrons emitted by the beam, and an optically transparent and electrically conducting plate is arranged at the second face of the target, the plate receiving the electric video information signal, thereby forming a control electrode. The target is an electrically insulating material which becomes ferroelectric below a certain temperature, called the Curie temperature, in the proximity of which the optical relay operates. In order to keep the target at the required operating temperature the optical relay is provided with a heat exchanger which acts on the target, such that in normal operation the target has a useful central area where the target exhibits a single domain ferro-electric phase, and a neutral peripheral area at a temperature which is higher than the Curie temperature, where the target exhibits a paraelectric phase. The optical relay is used for the production of television pictures on a large screen.
摘要:
An iron includes a heating element (97), heating control (11), for the heating element, and a control thermostat (13). To determine the type of fabric on which the iron is placed during ironing, the iron includes a type-of-fabric detector, which can be an electrostatic detector (35) or an optical detector (85). A maximum temperature limit T.sub.s defines the maximum ironing temperature of delicate fabrics. In the case of incorrect settings the operation of the iron is invalidated. The operation of the detector can be rendered dependent upon a humidity detector (60) which measures a resistivity of the fabric. The operation of these detectors (35, 85) may also depend on a detector for the state of use of the iron.
摘要:
Anamorphotic optical system transmitting an image while deforming it in one direction and leaving it undeformed in a substantially perpendicular direction. It comprises a main fibre-optical image guide (210) cemented to an exit face (213, 213.sub.2) of at least one beveled supplementary fibre-optical guide (220, 220.sub.2), the axes of the optical fibres of the two guides (210, 213, 213.sub.2) being not parallel to one another. Thus, the magnification of the image is not uniform in the direction of deformation. The transmitted image has either at least two parts each representing a different magnification, or a progressive deformation in the direction of the deformation.
摘要:
A optical relay which includes a target plate which is made of an electrically insulating material and allows light to pass in a manner depending on the electric field parallel to the direction of propagation of this light, wherein a first side of this target plate is scanned by an electron beam produced by an electron gun, an anode in the form of a grid, a thin plate which is optically transparent and electrically conducting, an amplifier applying the video information of the video signal to the relay. The optical relay includes means by circuit elements which it is is capable of writing and erasing the target plate in the charge accumulation mode cooperating with a precursor eraser acting on a limited number q of scanning lines positioned beyond the line n to which the write operation relates. In order to transmit the picture in accordance with a television standard, a de-interlacing arrangement is used.
摘要:
An air circulation heating apparatus, for example a hair drier or an electric radiator, is controlled by an infrared sensor which measures at a distance the thermal radiation emitted by an object heated by the apparatus. The sensor is placed in the flow of hot air to ensure reliable operation of the apparatus and to ensure that the sensor supplies correct measurement data. A screen is provided adjacent the sensor in the path of the airflow which prevents the flow of hot air from hitting the sensor directly.
摘要:
A strain-gauge transducer (5) comprising a substrate (10) provided with strain gauges and pressure members (11, 12) which deform the substrate (10) via transfer elements (1a, 4a) which transmit an applied force (F). The transfer elements comprise bars (1a, 1b, 4a, 4b) molded from an elastomer in a common molding operation. A material (2a, 3a) having a higher compressibility than the bars may be interposed between the bars. This material may form elastic stops (54a) provided to preclude breakage of the substrate. This results in a transducer whose sensitivity is linear for small loads and which is very insusceptible to overloading. The transducer can be used for the construction of scales or touch tablets.
摘要:
A device for generating multi-directional commands, comprising at least one plate provided with strain gauges (R.sub.1 -R.sub.4) (R.sub.5 -R.sub.8) which detect the multi-directional deformations incurred by the plate under the influence of a force F exerted on a surface of the plate. One of the extremities of the plate cooperates with a support and the plate bears, by way of its other surface, on a fulcrum at the other extremity. The fulcrum may be formed by the head of a microswitch, the extremity of the plate being linked to the support. The microswitch is capable of controlling operations for the activation of the device and/or the validation of the electric signals from the strain gauges. The orientation of the force F with respect to the axis of the fulcrum enables the issue of multi-directional commands. The device has a shape ergonomically adapted to handling by means of a single hand.
摘要:
An iron comprises a heating element (97), heating-control (96) for the heating element (97), and a motion detector. The motion detector can be an electrostatic detector (35) which determines an amount of electrostatic charges present at the fabric. The motion detector can be a humidity detector (60) which detects a resistivity of the fabric between two electrodes (62.sub.a, 62.sub.b) which are in contact with the fabric. A counting circuit (89) calculates a number of halfwaves of an electric signal supplied by one of the detectors and determines whether the iron is in use or is not in use. Moreover, the degree of humidity of the fabric can be determined by a measurement circuit (99).