Multi-position integrated current sensor
A current sensor and integrated technology, which is applied in the field of multi-in-one current sensors, can solve problems such as complex detection
Pending Publication Date: 2021-11-26
山东元星电子有限公司 +1
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Problems solved by technology
The direct current will not produce a changing magnetic field, and the detection is more complicated
Method used
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Embodiment Construction
[0022] In order to make the technical solutions and beneficial effects of the present invention, the embodiments of the present invention will be further explained in detail below.
[0023] A plurality of integrated current sensors, including housings, cavities inside the housing, in which the excitation coil and a circuit board are provided inside the housing cavity for realizing the acquisition of the current and the processing of the current signal. The plurality of current sensors disclosed in the present invention can simultaneously measure multiple DC currents. Based on this, at least two threaded holes are provided on the housing, the wire to be measured can be collected by the wire through the threading hole. A fixed vias are provided on the housing to achieve the position where the housing is fixed to the detection current is provided. like figure 1 As shown in the present embodiment, the threaded hole is provided with four, and four DC currents can be collected simultane...
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The invention relates to the field of current sampling sensors, in particular to a multi-position integrated current sensor. The multi-position integrated current sensor comprises a shell, wherein the shell is provided with at least two threading holes, a selection switch, a controller and a communication module; the threading hole is sleeved with a magnet exciting coil, and the magnet exciting coil is connected with a sampling resistor in series; the controller sequentially and circularly loads square wave signals to the magnet exciting coil through the selection switch; the controller is used for sampling signals of the sampling resistor and respectively acquiring the duration time of a high level in the case of zero current and the duration time of the high level in the presence of current; the duration of the high level in the case of zero current is storedinto a sensor, then a difference value between the duration of the high level in the presence of the current and the duration of the high level in the case of zero current is calculated, and the time difference value is convertedinto a current value; and the controller transmits the collected current value to a monitoring system or a server through the communication module. According to the invention, collection of multiple paths of direct current can be realized, and the collected current can be converted into a digital signal for transmission.
Description
Technical field [0001] The present invention relates to the field of current sampling sensors, specifically a multi-bit current sensor. Background technique [0002] Since the alternating magnetic field is generated during transmission, an alternating current can be achieved by electromagnetic conversion. And DC electricity does not produce a changed magnetic field, which is more complicated. There is a plan for DC current sampling by Hall sensor in the prior art. Meanwhile Inventive content [0003] The technical problem to be solved by the present invention is to provide a multi-bit current sensor having a DC current. [0004] The technical solution of the technical problem to be solved by the present invention is: a plurality of integrated current sensors, including housings, characterized in that the housing is provided with at least two threaded holes, selection switches, controllers, and communication modules; The threaded hole cover is provided with a exciting coil, and t...
Claims
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Login to View More IPC IPC(8): G01R19/25
CPCG01R19/25
Inventor 崔在帅李安虎王永平柴丽丽韩伟
Owner 山东元星电子有限公司