39results about How to "Strong output signal" patented technology

A micromechanical component for a micromirror-based laser system for detecting an incident laser beam. Two sensor diodes are situated on a shared substrate in the micromechanical component, only one of the two sensor diodes being designed as a photodiode. The further sensor diode supplies an output signal independent of an incidence of light. By comparing the two output signals of the two diodes, an incidence of light in the micromechanical component may be inferred.

The invention discloses a sensor, a dual-mode touch module and a dual-mode touch electronic device. The sensor comprises an electromagnetic induction array, wherein the electromagnetic induction array comprises multiple first direction leads in combined arrangement and multiple second direction leads in combined arrangement; each of first direction leads and second direction leads comprise a first lead, a second lead and a connecting line; each connecting line is provided with a mode control switch for disconnecting the connecting line, and the control end of the mode control switch is connected with an external control component; and when the external control component controls the mode control switch to disconnect the connecting line, the corresponding first leads and second leads in the first direction lead group and the second direction lead group form a capacitive coupling touch array so as to enable the sensor to work in a capacitive coupling touch mode. The sensor can recognize signals of finger touch and electromagnetic pen touch by virtue of the same array, thus simplifying the structure of the sensor and lowering the manufacturing cost.

The invention discloses a plasma flow visualization device based on a glow discharge principle. The plasma flow visualization device comprises a plurality of electrode couples composed of anode electrodes and cathode electrodes, an insulating plate, a dividing wall, an amplifier, a variable voltage variable frequency device, a high-voltage probe, a modulation-demodulation device and a data acquisition device. Three-phase electricity provided by an external power supply is sequentially converted into high-frequency high-voltage alternating currents through the amplifier and the variable voltage variable frequency device, the high-frequency high-voltage alternating currents are loaded to the anode electrodes and the cathode electrodes of the electrode couples, plasma fields are generated between the anode electrodes and the cathode electrodes, high-frequency high voltage between the anode electrodes and the cathode electrodes is obtained through the high-voltage probe, the modulation-demodulation device is adopted to separate originally-applied high-frequency high voltage from an incoming flow unsteady pressure fluctuation, the unsteady pressure fluctuation is collected and analyzed through the data acquisition device at last, a real unsteady pressure fluctuation of a wall is restored, and displaying of real flow fields is achieved.

The invention discloses a novel automobile wheel speed sensor, which comprises a plug, a high temperature wire, a magnet, a reluctance sensor chip and an additional capacitor. The reluctance sensor chip, the magnet and the additional capacitor are connected in parallel and packaged inside a sealing assembly, the ends of the reluctance sensor chip are exposed out of the sealing assembly, two ends of the high temperature wire are respectively connected with a pin of the plug and the reluctance sensor chip, and a fixing structure is arranged on the middle portion of the high temperature wire to be fixed with an automobile body. The novel automobile wheel speed sensor uses a reluctance sensor, a giant magneto resistive (GMR) effect sensor is sensitive to subtle changes in the magnetic field, and accordingly the location and displacement of gear ring rotation can be measured accurately. Compared with Hall effect sensors and magneto-electric sensors, GMR chips have strong output signals.

The sensor includes following parts and structures: insulative inertial mass block in cube; four pieces of XO0 cutting type quartz wafer with electrode are jointed four walls of the inertial mass block; the inertial mass block and quartz wafers are instilled inside base frame composed of case body and case cover. Each insulative force transmission block is pasted on outside each quartz wafer. Pretension screw of withstanding each piece of force transmission block is arranged on four walls of the base frame. Through signal lead wire, one end of the case cover is connected to electrode, and the other end is connected to connector plug, which is connected to differential type charge amplifier. The sensor possesses high sensitivity, or, when outside force is smaller, output signal is still strong so as to reduce measuring error brought from environmental change. Features of the sensor are: light weight, simple structure, easy of manufacture.

A yarn feeding device F comprises at least one electro-optical yarn sensor S having at least one combination of a light source E and a physically closely adjacent receiver R. In the light path betweenthe light source / receiver combination and a reflective scanning zone 12 on a storage body of the yarn feeding device a transparent optical spreading body B is provided which spreads a substantially round light spot 17 into a longitudinal light strip in the reflective yarn scanning zone 12, the transparent spreading body B being arranged such that the longitudinal axis of the light strip is oriented substantially parallel to the axes of the windings of a yarn Y carried by the storage body periphery.