摘要:
The application provides a position detection circuit, which is connected to a processing circuit (200), and includes a first switch module (110) and a first ground resistor (R1); the first switch module (110) includes a first end, a second end and a first switch (T1), the first switch module (110) is used for controlling on/off state of the first switch (T1) according to whether the placement member is placed at a first placement position, the first end of the first switch module (110) receives a. system voltage (Vcc), and the second end outputs a first state signal or a second state signal to the processing circuit (200) according to the on/off state of the first switch (T1); and the first grounding resistor (R1) has a first end connected to the second end of the first switch module (110), and a second end grounded. Also provided is an electronic cigarette.
摘要:
Tools used to detect underlying structures, such as behind the surface of a wall, can include a first sensor, such as an electromagnetic sensor, configured to generate data indicative of the location of the underlying structure. Tools can include an indicator that provides an indication to a user based on the data. Tools can additionally or alternatively include an infrared imaging device for generating infrared image data indicative of the heat pattern of a scene. A display can display the generated infrared image data. Underlying structures may be visible in the heat pattern of the scene. The tool can indicate the presence of an underlying structure feature to an operator via one or both of the display and the indicator.
摘要:
One aspect of the technology involves a system for measuring the rotational position of a rotating shaft, including a field source configured to generate a measurable field, a sensor configured to measure the generated field, and a target that is configured to modify the generated field as measured by the sensor to have a shape with (a) at least one measurable feature for a zero reference point, and (b) a shape that varies throughout one or more angles such that a rotational position of the shaft is determined with a selected angular accuracy. There is also a device that receives a query for the rotational position of the shaft a device that responds to the query. Another aspect involves generating multi-frequency vibrations with a single linear resonant actuator (LRA). This LRA can exhibit a beat pattern in response to being driven by the sum of two different sinusoidal functions.
摘要:
A IRID object identification system equipped with active identifiers operation of which is based on transmission in the infrared radiation band is characterised in that the identification system uses IRID active identifiers operation of which is based on transmission in the infrared radiation band generated by narrow-angle infrared transmitters whereas a battery (3) of the energy management system (2) is recharged by solar cells (6), and the system comprises a device provided with transmitter (4) and receiver (5) equipped with reader (7). The device (1) of the system makes use directivity of emission in the infrared radiation band to analyse direction of motion of the identifier. This offers the possibility to handle more than one identifier present within the range of reader (7) and thus allows to overlap range areas of a plurality of readers (7) in the barrier or cellular (honeycomb) topology to increase precision of location of objects in a predefined area.
摘要:
Tools used to detect underlying structures, such as behind the surface of a wall, can include a first sensor, such as an electromagnetic sensor, configured to generate data indicative of the location of the underlying structure. Tools can include an indicator that provides an indication to a user based on the data. Tools can additionally or alternatively include an infrared imaging device for generating infrared image data indicative of the heat pattern of a scene. A display can display the generated infrared image data. Underlying structures may be visible in the heat pattern of the scene. The tool can indicate the presence of an underlying structure feature to an operator via one or both of the display and the indicator.
摘要:
An optoelectronic displacement sensor for the absolute measurement of displacement in the sub-micrometer range is described, which is constructed, according to an exemplary embodiment, with a light-emitting diode (L) as light source and two photodiodes (D1, D2), which are arranged in a difference circuit and which are opposite to one another, as radiation sensors. The sensing of displacement takes place by means of a diaphragm (2), which is displaceable between light source and radiation sensors and which influences the illumination received by of the photodiodes (D1, D2). For the homogenization of the illumination, special means are provided, which, according to an exemplary embodiment, consist of a correction filter (6) disposed in the beam path.
摘要:
The invention provides a method of measuring comprising: directing sources of electro-magnetic radiation, having a predetermined displacement relative to each other in a direction of measurement, to radiate over the receiving areas of electromagnetic radiation sensors also having a predetermined displacement relative to each other in a direction of measurement; sequentially switching the sources; moving a mark between the sources and the sensors, the mark causing a restriction in a cross-section measurement of the radiation passing beyond it, and the mark moving in a direction of measurement from a reference position to a position determined by the measurement being taken; detecting any changes in the sensors as a result of movement of the radiation restriction caused by movement of the mark and the switching of the sources; noting between the switching of which sources each such change occurred; and ascertaining what distance the radiation restriction moved to cause the change to occur between the noted sources.
摘要:
A scanning mirror position sensor operable from the back side of a scanning mirror which utilizes the front side of the mirror for scanning a scene to be interrogated or displayed. A rectangular uniformly distributed light source is reflected from the back surface of the scanning mirror across a grating consisting of alternate transparent and opaque regions placed in the focal plane in front of a single large area photodetector. As the light from the light source sweeps across the grating, the detector is alternately energized and deenergized to form a serial pulse train which is coupled to a pulse counter which accumulates the pulse count to thereby provide a continual and accurate measure of the mirror position.
摘要:
A sensor system is configured to control one or more operational functions of one or more components. The sensor system includes one or more protuberances, a first channel defined by the one or more protuberances, a second channel defined by the one or more protuberances, and one or more sensing devices configured to detect one or more actions of an object in relation to one or more of the one or more protuberances, the first channel, or the second channel. The one or more actions of the object are associated with the one or more operational functions of the one or more components.
摘要:
A system includes at least two base stations that emit light beams to illuminate an area for positional tracking objects in the area. A base station emits at least two light beams that rotate around a rotation axis at a rotational speed unique to the base station. Responsive to being illuminated by the light beams emitted by the at least two base stations, an object being tracked generates illumination data. The system determines which illumination data corresponds to one of multiple base stations by analyzing the illumination data over time. The system analyzes the illumination data corresponding to one base station to determine an orientation and/or position of the object relative to that base station.