40results about How to "The signal output is stable" patented technology

An annul protecting portion 23 having a thickness larger than the thickness of a sensor sensitive portion 1 is provided in such a manner as to surround the sensor sensitive portion 1, the sensor sensitive portion 1 together with the protecting portion 23 is placed between living tissues, so as to ensure that the gate portion 7 is not subjected to an external pressure by coming into contact with the living tissues. Further, outer peripheries of lead wires 4 on the sensor sensitive portion 1 side are covered with a plasticity material 24 woven into a tubular shape by a metal wire such as a stainless steel wire, and is grounded together with the metallic protecting portion, so as not to be subjected to induction noise. Further, the metal wire is bent to hold the sensor sensitive portion 1 at a suitable angle.

The invention discloses a rotary electronic gear shifting device. The rotary electronic gear shifting device comprises a shell, a rotary knob mechanism and a rotating shaft, wherein the rotary knob mechanism comprises a first magnetic assembly, a third magnetic assembly, a second magnetic assembly and a blocking part; when the rotary knob mechanism is in an initial state, the first magnetic assembly sucks and fixes the second magnetic assembly and the third magnetic assembly, external force F1 is applied, the rotary knob mechanism is circumferentially rotated, the third magnetic assembly is separated from the first magnetic assembly and rotates along with the rotating shaft, and when rotating to touch the second magnetic assembly, the third magnetic assembly automatically resets; and whenexternal force F2 larger than F1 is applied, the rotary knob mechanism is circumferentially rotated, the third magnetic assembly can drive the second magnetic assembly to circumferentially rotate to the blocking part, and the third magnetic assembly and the second magnetic assembly automatically reset. According to the rotary electronic gear shifting device, the structure is simple, friction noiseis not generated, the hand feeling is good, utilization experience of users is good, the service life is long, and operation is effort-saving.

The invention relates to an oscillatory circuit used for detecting the coil inductance of a miniature plane, belonging to the technical field of electronics detection. A resistance Rc2 is connected with a power supply and a collector of a triode, a capacitor C7 is connected with an emitter of the triode, the emitter is connected with a resistance Re2 and the capacitor, the Re2 and a capacitor C8 are respectively ground, a resistance Rb3 is connected with the power supply and the base of the triode, the base is connected both with a resistance Rb4 and with a Cb2, the two of which are respectively ground, the collector and one end of a capacitor C9 are connected, the capacitor C9 is connected with an inductor Ls, and the inductor Ls is connected with an inductor Lp and the coil L3 of the detected plane, the three of which are respectively ground.In the oscillatory circuit, a sensor coil is connected with the inductor Lp in parallel and then connected to a capacitance connecting three point type oscillator, thus effectively improving the quality factor of the circuit system and leading to stable signal output of current vortex coil.

The invention provides an optical-fiber security early-warning polarization-phase combined control system for the security protection and early warning of buried pipelines, structures or important facilities and regions, which relates to the technical field of mechanical vibration measurement, impact measurement and pipeline systems. A polarization modulator (202) is connected in serial between a continuous monochromatic laser (101) and a wave combining-dividing device (203); the wave combining-dividing device (203) is connected with two photoelectric detectors (309) and (310) through optical fiber; the output ends of the two photoelectric detectors (309) and (310) are connected with an A/D (312) and an A/D (313) respectively; the output ends of the A/D (312) and the A/D (313) are connected with photoelectric signal processing circuits (311) respectively; the output end of one photoelectric signal processing circuit (311) is connected with a polarization controller (201); the output end of the polarization controller (201) is connected with the polarization modulator (202) and a phase modulator (206) connected in serial with optical fiber (1) or (2); the output of the other photoelectric signal processing circuit (311) is connected with a phase controller (205); and the output of the phase controller (205) is connected with the phase modulator (206) connected in serial with the optical fiber (1) or (2).

The invention relates to a circular weft knitting machine broken needle detection mechanism. The circular weft knitting machine broken needle detection mechanism is arranged on a triangle of a saddle and comprises a pin arranged on the triangle, a swinging piece rotatably arranged at the free end of the pin, a sensor arranged on the saddle and a reset spring arranged on the saddle, the free end of the reset spring is connected with the swinging piece which is arranged in the triangle and located on the lower potion of a needle butt of a knitting needle, when the knitting needle move up and down, the needle butt can make contact with the swinging piece and press the swinging piece to rotate, and when the swinging piece swings, the sensor can be triggered.

The invention relates to a pressure transducer having stressing concentration. The pressure transducer includes a housing which assumes a cylindrical structure having two ends blocked and is provided with a mounting hole and an air exhaust hole thereon; a metal membrane which is arranged inside the mounting hole and has an circumferential edge which is fixedly connected to the inner wall of the mounting hole, the metal membrane being provided with a stress concentration groove thereon; and a FBG fiber which is fixed to the outside of the metal membrane. According to the invention, the pressure transducer adopts the metal membrane and the housing to enclose a cavity, and the metal membrane is provided with the stress concentration groove, such that a signal can be amplified and the sensitivity of the pressure sensor is higher.

The invention discloses a refrigeration type photoelectric balance detector. The detector comprises an input optical fiber, a protective sleeve, a tube cap, a photoelectric detection chip, a circuit board, a three-stage TEC refrigeration sheet and a tube seat, wherein the three-stage TEC refrigeration sheet is fixedly connected to the top of the tube base, the circuit board is fixed to the top of the three-stage TEC refrigeration sheet, the photoelectric detection chip is fixed to the top of the circuit board, the tube cap sleeves the three-stage TEC refrigeration sheet, the circuit board and the photoelectric detection chip, the bottom of the tube cap is fixed to the tube base, the input optical fiber is fixed to the top of the tube cap, an end portion of the input optical fiber is connected to the photoelectric detection chip, and the protective sleeve is sleeved on the top of the pipe cap and the input optical fiber. According to the detector, integration of a plurality of balance detectors is realized, and the balance detectors work at a specified temperature.

The invention relates to a nucleic acid detection device and detection method. The device comprises a sample processor and a magnetic sensitive detector, wherein the sample processor comprises a reagent chamber, a plurality of PCR reaction microchannels which are arranged side by side, a catching chip storage chamber, a DNA modification magnetic bead storage chamber and a cleaning liquid storage chamber, wherein the top end of the first PCR reaction microchannel communicates with a reagent outlet through a first microchannel, and every two adjacent PCR reaction microchannels are in communication in heads and tails through a second microchannel; 3 temperature control devices are sequentially arranged on each PCR reaction microchannel from top to bottom; the inlet of the catching chip storage chamber communicates with the bottom end of the last PCR reaction microchannel through a third microchannel, communicates with the DNA modification magnetic bead storage chamber through a fourth microchannel, and communicates with the cleaning liquid storage chamber through a fifth microchannel; and a magnetic sensor of the magnetic sensitive detector is used for sensing and catching DNA modification magnetic beads in the magnetic sensitive detector and converting the magnetic signals of the DNA modification magnetic beads into electrical signals. When being used for detecting nucleic acid,the device disclosed by the invention is high in reaction speed and stable in signal output.

The invention discloses a signal source circuit which comprises a triode, a field-effect tube, a resistor and a capacitor. The signal source circuit is simple in structure, signals are output stably, the number of clutter is small, and noise is low. The signal source circuit is suitable for being used in a low-power electronic system.

The invention discloses an armored cable, a jig, an assembling method of the armored cable and a sensor. The armored cable comprises a high-temperature device, a low-temperature device, a high-temperature line segment and a low-temperature line segment, the high-temperature line segment and the low-temperature line segment are located between the high-temperature device and the low-temperature device, the high-temperature device is connected to the high-temperature line segment, and the low-temperature device is connected to the low-temperature line segment. And the high-temperature line segment is connected with the low-temperature line segment through a connecting device. According to the invention, the overall cost of the armored cable is reduced, the low-temperature line segment is easy to process, the cost rate is high, and the problem that the yield of the armored cable with a single high-temperature line segment is low is solved.

The invention discloses voltage regulating equipment based on a single-chip microcomputer, which structurally comprises a main body, a display screen, a regulating button and a handle, wherein the display screen is arranged at the top of the front end of the main body, the regulating button is arranged at the right end of the display screen, the handle is clamped in the middle of the top of the main body, the main body comprises a circuit board, cooling fins and a power connector, the power connector comprises a concave groove, a clamping frame, a wire frame, an adjusting tooth block, a conductive frame and a pressing device, the wire frame comprises a frame body, a threaded groove, a movable tooth block and a clamping groove, and the threaded groove comprises a groove body, a material guide block and a wire groove.According to the invention, the wire guiding frame rotates, so that the silk thread can be in contact with the threaded groove, and the silk thread is guided backwards through the threaded groove, so that the bifurcated silk thread is screwed into a silk strip, and the silk strip can be firmly arranged in the conductive frame under the fixation of the pressing device, the situation that the connecting wire falls off is avoided, and the single-chip microcomputer can stably output signals.

The invention relates to the technical field of intelligent adjustment, in particular to a plate-shaped bottom die transportation system which comprises a superior unit used for signal generation and a subordinate unit matched with the superior unit for signal receiving, and the superior unit and the subordinate unit jointly act to transmit signals to a terminal regulator; a decomposition module used for signal processing and a frequency modulation module used for signal output are embedded in the terminal regulator, the stability of signal output and receiving can be effectively guaranteed through the arrangement of the upper-level unit and the lower-level unit, meanwhile, it is guaranteed that the plate-shaped bottom die is positioned and monitored in real time in the transportation process, and the transportation error rate is reduced to the maximum extent.