82results about How to "Affect sensitivity" patented technology

The present invention is a wrist mechanism and a method for making robotic devices in which the transmission of motion, force and/or torque around a revolute joint can be accomplished without coupling. This construction allows mounting the actuators on the base or lower elements of a mechanism, so that only linkage elements move the end-effector. Thus reducing inertia of the moving elements and increasing performance of the device. The decoupled motion of the end-effector or links is achieved by routing their transmission cables around idler pulleys placed parallel to the joint rotation axis on an optimal position such any stretch on the transmission cable is minimized. In particular, this construction can be use for robotic surgical tools that have two independently driven jaws, decoupled and orthogonal from its articulating wrist.

Methods and apparatus for improving the sensing performance of a capacitive touch screen sensing device. The electrical potential of conductive structures proximate capacitive touch pads of the sensing device is altered to compensate for the effect of parasitic capacitance, based on external conditions such as water on the touch screen or an intervening user worn glove. The compensation for parasitic capacitance improves the signal to noise ratio and therefore the sensing performance of the device.

Audio apparatus (30) comprising a piezoelectric transducer (44) and coupling means (54) for coupling the transducer to a user's pinna (32) whereby the transducer excites vibration in the pinna (32) to cause it to transmit an acoustic signal from the transducer (44) to a user's inner ear, characterised in that the transducer is embedded in a casing (42) of relatively soft material and the casing (42) is mounted to a housing (34) of relatively hard material such that a cavity (48) is defined between the casing (42) and housing (34). A method of designing audio apparatus comprising mechanically coupling a piezoelectric transducer to a user's pinna and driving the transducer so that the transducer excites vibration in the pinna to cause it to transmit an acoustic signal from the transducer to a user's inner ear, characterised by embedding the transducer in a casing of relatively soft material and by mounting the casing to protective housing of relatively hard material such that a cavity is defined between the casing and housing.

The invention discloses an air state monitoring method. The method comprises the steps that S1, a sensor is driven to perform detection during a first time length within a specific working cycle so that detected air state data can be obtained, and the sensor is enabled to stop working to be dormant until the working cycle is completed; S2, the sensor is driven to perform detection during a second time length smaller than the first time length within the specific working cycle so that detected air state data can be obtained; S3, when it is judged that the error range of the air state data obtained through detection this time and the air state data obtained through detection last time does not exceed an error range, S4 is performed; S4, the sensor is enabled to stop working to be dormant until the working cycle is completed, and then S2 continues to be performed.

An optical absorption gas sensor has an LED light source and a photodiode light detector, a temperature measuring device for measuring the LED temperature and a temperature measuring device for measuring the photodiode temperature. The sensor is calibrated by measuring the response of photodiode current at zero analyte gas concentration and at a reference analyte gas concentration. From these measurement, calibration data taking into account the effect of photodiode temperature on the sensitivity of the photodiode and, independently, the effect of changes in the spectrum of light output by the LED on the light detected by the photodiode with LED temperature can be obtained. Calibration data is written to memory in the gas sensor and in operation of the gas sensor, the output is compensated for both LED and photodiode temperature. The LED and photodiode can therefore be relatively far apart and operate at significantly different temperatures allowing greater freedom of optical pathway design.

A structure of a loudspeaker is designed to decrease a thickness or height thereof, thereby reducing a mounting depth of the loudspeaker on a mounting panel or wall. The loudspeaker includes a speaker frame, a diaphragm connected to the speaker frame in a manner capable of vibration, a voice coil connected to the diaphragm through a coil bobbin to receive an electric signal to vibrate the diaphragm, a spider connected to the speaker frame and to the diaphragm for supporting the diaphragm and the voice coil in a flexible manner, a magnetic assembly including a top plate, a permanent magnet and a pole piece for creating a magnetic circuit for interaction with the voice coil inserted in an air gap, and a plurality of cut-outs formed on a top of the magnetic assembly at an outside thereof to receive therein corresponding suspension elements of the spider.

The invention provides a recognition device. The recognition device comprises a touch unit, a touch signal processing unit and a sensor unit, wherein the touch unit is arranged relative to the sensor unit and comprises a conducting layer and an insulating layer; the conducting layer is arranged between the insulating layer and the sensor unit; the touch signal processing unit is coupled with the conducting layer of the touch unit; the touch unit comprises at least one touch region; the touch signal processing unit controls the working condition of the sensor unit according to the number of the touch regions with quantity change of capacitance above the threshold in the touch unit. The recognition device can rapidly switch the condition and improve the recognition accuracy.

Methods and apparatus are disclosed for improving the sensitivity, angular resolution and range of motion detectors, occupancy sensors and similar systems. Specifically, an improved infrared input section is described which employs at least one additional lens, possibly segmented, before a lens array. This pre-focusing lens collects incident infrared radiation over the entire entrance aperture and partially focuses it onto one element of the lens array. The final lens array which focuses the radiation onto a detector may be an array of Fresnel lenses as in the prior art, an array of microlenses or a diffractive optics array. It is also possible to implement this system is such a way that moving infrared sources at any angular orientation will be detected as opposed to prior art systems in which only sources which cross the planes separating an array of angular sectors are detected.

A double-hole parallel beam type six-dimensional force sensor relates to the technical field of sensors, and is aimed at solving the problems that a conventional six-dimensional force sensor is low in sensitivity, large in dimension coupling, high in non-linearity, low in precision and high in retardation. One end of each of four inner elastic beams is fixed outside a loading bench. Each of four outer elastic beams is fixed on the other end of one corresponding inner elastic beam. Each of four fixed stands is positioned between every two adjacent outer elastic beams. The two ends of each fixed stand are connected with the corresponding adjacent outer elastic beams through floating beams. The top surface and the bottom surface of each inner elastic beam are each provided with two resistance strain gauges. Four resistance strain gauges are arranged outside each outer elastic beam. An elastic body is arranged in a cavity of a housing. An upper cover covers the opening of the housing. The external diameter of the upper end cover is smaller than the internal diameter of the housing. The double-hole parallel beam type six-dimensional force sensor is used for measuring six-dimensional force information.

The invention relates to the technical field of general aerial equipment and discloses an aerial farming spray-irrigation unmanned aerial vehicle. The aerial farming spray-irrigation unmanned aerial vehicle comprises a base. A mounting frame is fixedly mounted at the top of the base, grooves are formed in the two sides of the front face and the back face of the mounting frame correspondingly, andaccommodating grooves are formed in the positions, located on the inner walls of the grooves, of the mounting frame; movable shafts located inside the accommodating grooves are arranged on the inner wall of the mounting frame, the middles of the movable shafts are fixedly sleeved with connecting sleeves, and a cantilever is welded to one side of each connecting sleeve; and fastening bolts are arranged on the inner wall, located in the grooves, of the mounting frame. According to the aerial farming spray-irrigation unmanned aerial vehicle, by forming the accommodating grooves, the cantilevers are stored into the mounting frame conveniently in the non-working state of the unmanned aerial vehicle, thus the situation that after long-time storing, dust and moisture enter the unmanned aerial vehicle, and then the operation sensitivity of the unmanned aerial vehicle is affected is avoided, the storing safety of the unmanned aerial vehicle is improved, and meanwhile the storing space of the unmanned aerial vehicle is optimized.

The present disclosure relates to in situ transmission electron microscope (TEM) holders with improved stability and electrical sensitivity. The holders feature a front bearing seal and a rear bearing seal which allow the holders to achieve high sensitivity, high stability, large range of motion and high vacuum isolation. The bearings use a PEEK insulating disk as a pivot point for translation and tilting motion, and use O-rings to dampen vibrations, provide electrical and vacuum insulation, and to set a grabbing force between the bearing and the probe.

The invention discloses an independent combustible gas detection apparatus. The independent combustible gas detection apparatus comprises a gas collection tank, wherein an air inlet is arranged at a lateral part of the gas collection tank, the air inlet is positioned outside the gas collection tank and communicated with a filter tube; a connection bench, wherein a pipeline is fixedly arranged in the connection bench; a casing, wherein a top board is arranged at the top of the casing, baffle rods are symmetrically and fixedly arranged at two sides of the top board; an analysis apparatus which comprises a first detection chamber, a second detection chamber and a third detection chamber vertically and downwardly and fixedly arranged at the top board, and sensors are fixedly arranged at the top of the first detection chamber, the second detection chamber, and the third detection chamber; a purifying case, wherein several steel plates are horizontally and fixedly arranged at internals up and down in the purifying case, and the steel plates are filled with a gas purifying material; and a cycle apparatus which comprises a gas case, a first exhaust pipe and a second exhaust pipe fixedly arranged at a side wall of the casing. The independent combustible gas detection apparatus has the advantages of simple structure and high data detection accuracy, the purified gas is used for repellingthe residual gas in the independent combustible gas detection apparatus, and the protection effect on the sensor is realized.

The invention provides a smoke alarm with a cleaning function, and belongs to the technical field of electronic equipment. The smoke alarm comprises an outer cover, a cleaning mechanism, a smoke detector body and a base, the outer cover is arranged on the base, the smoke detector body is arranged on the base in the outer cover, and the cleaning mechanism is arranged on the outer cover above the smoke detector body. Dust in the smoke alarm can be effectively cleaned through the cleaning mechanism, the situation that the sensitivity of the smoke detector is affected due to too much accumulationof dust on the surface of a detection head is prevented, meanwhile, through the action of airflow, the dust in the smoke alarm can be completely discharged, thorough cleaning is achieved, and the device is simple in structure and easy and convenient to operate.

The present invention discloses a novel double-column vertical open type outdoor high-voltage AC disconnecting switch. The switch comprises a bottom frame, a first pillar insulator, a second pillar insulator, a conductive loop, a static side contact socket, and a movable side contact socket. The conductive loop comprises a conductive blade, and the conductive blade is provided with a self-lockingdevice; a latching device is arranged above the second pillar insulator and on one side of the static side contact socket away from the movable side contact socket, and the side surface of the latching device is provided with a concave latching groove; the position of the concave latching groove is engaged with a hook body; the hook body is internally provided with a stainless steel leaf spring; the conductive loop adopts a fully enclosed structure; all conductors of the conductive loop are enclosed inside the insulating material; and a static contact, a static side wiring board and a movableside wiring board are installed in the insulator. According to the technical scheme of the present invention, the stainless steel leaf spring is arranged in the hook body, so that influence on the rotation sensitivity of the hook body caused by the exposure of the stainless steel leaf spring to the wind and rain can be avoided; and by using the fully enclosed structure of the conductive loop, short circuits caused by birds and foreign objects can be avoided.

The invention discloses a real-time monitoring device and an operation determination method for a hob status during shield construction. A laser monitoring method is introduced into a cutter head system during shield construction, and related data such as tool wear can be effectively monitored by laser measurement feedback, which not only solves the problem of hob running status monitoring duringthe construction process, but also effectively avoids the disadvantages such as impact wear of the rock slag on the sensor during the construction process. In order to avoid the dirt, oil and other stains from adhering to the lens during the operation, resulting in affecting the sensitivity and accuracy of the laser sensor detection, the sealing strips on the protective lens and the protective device can move relative to one another to scrape off the stains on the protective lens and ensure the cleanness of the lens. The operation determination method for the hob status collects the hob wear data through the hob operation data monitoring device, analyzes the operation status of the hob, determines that the hob is in a normal status such as regular wear, or in an abnormal status, such as side grinding, chipping and jamming, finds the abnormal status of the hob in time, and carries out quick replacement and repair.

The invention discloses an oxide tape-casting slurry-based oxygen sensor for a vehicle. According to the sensor, a sensitive layer matrix, an air channel layer, an air channel support body and a heating layer matrix are made of tape-casting slurry, and the tape-casting slurry comprises the following materials in parts by weight: 5-7 parts of zirconium oxide powder body, 3-5 parts of organic solvent and 0.5-1.5 parts of assistant. All layers of matrixes of the oxygen sensor for the vehicle are made of zirconium oxide materials, and are good in sintering combination degree in a sintering process, especially the air channel layer, organic matters of carbon powder, starch and the like need not to be filled in an air channel, and thus the sensitivity of the sensor because residues exist in the air channel are avoided.

The invention relates to the technical and application field of fishing hook groups, in particular to an anti-tight fishing combination hook group with a floater plummet formed jointly by a self-rescued bottom hanging-resistant floater plummet and a counter-force triggering mechanism after a fish bites the hook, wherein the anti-tight fishing combination hook group replaces a conventional fish plummet, improves the fish hooking senility and attracts a fish shoal. In particular, the counter-force triggering mechanism after the fish bites the hook generates a counter-force to fish the fish tightly quickly to prevent the hook-biting fish from escaping, so that the fishing rate is increased. The invention also provides the floater plummet compose of axial empty floater, a hollow hard pipe andan axial empty lead plummet. The buoyancy of the floater is smaller than the weight of the lead plummet, so that the floater plummet is kept in a standing state all the way underwater, and the probability of hanging the bottom of the lead plummet is reduced. As the axial empty lead plummet of the floater plummet can be made as an axial empty hollowed lead plummet, the plummet can be firmly placedto fish luring bait to play a nesting role to attract the fish shoal, so that the rate of fish is improved. The fishing method of a fisher dependent on experience is changed to automatic fishing of the fisher mechanically, so that the fish escaping condition after being fished is avoided. The fishing rod needs not to be watched by the fisher, so that the beginner fisher becomes a fishing master-hand instantly by using the anti-tight fishing combination hook group with the floater plummet and can fish smoothly without any fishing experience. The invention provides a double innovation in novel mechanism and structural mechanism of fishing.

A photosensitive resin composition includes a carboxyl group-containing photosensitive resin, a photopolymerization initiator, a compound having an ethylenic unsaturated group, a non-reactive diluent, and an epoxy compound. The photopolymerization initiator includes an oxime ester compound and an aminocarbonyl compound having a tertiary amino group.

The invention discloses a method for detecting a 2,4-dichlorophenoxyacetic acid (2, 4-D) pesticide based on a gold nanofilm SERS technology, and belongs to the technical field of food monitoring and the like. With the method, firstly gold nanoparticles are produced on a mesoporous silicon dioxide film formed at an air-water interface through in-situ photo induced reduction, a gold nano surface-enhanced Raman substrate with a mesoporous structure is constructed, a Raman signal is enhanced after electrostatic adsorption of the densely arranged gold nanoparticles in the field and 2, 4-D molecules, and a standard curve for 2, 4-D detection is established. With the method, the operation is simple, the detection speed is high, the precision is relatively high, the stability is good, and the 2, 4-D pesticide can be detected in situ.