Receiver and detector

Abstract

The utility model provides a receiver and a detector. The receiver comprises a handle assembly, wherein the length direction of the handle assembly is a preset direction; the first sensor is directly or indirectly borne on the handle assembly, the length direction of the first sensor is a first direction, and when the receiver is in an initial detection state, the preset direction is perpendicular to or almost perpendicular to the first direction; wherein the first sensor is used for sensing an electromagnetic field generated by a target cable, and the handle assembly is used for analyzing and processing the electromagnetic field. The receiver can better match the use habits of the user, so that the user has higher detection sensitivity in the process of using the receiver.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground cable detection, in particular to a receiver and a detector. BACKGROUND

[0002] The detection technology of the underground cable detector mainly relies on the principle of electromagnetic induction. Specifically, the underground cable detector includes a transmitter and a receiver. The transmitter is used to apply an alternating current signal of a specific frequency to the underground cable. The alternating current signal propagates along the cable and generates an electromagnetic field. The receiver determines the position, orientation and depth of the cable by detecting the strength and distribution of the magnetic induction. However, the receiver of the underground cable detector in the related art cannot well match the user's usage habits, resulting in low detection sensitivity of the user during use of the receiver. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a receiver and a detector. The receiver can better match the user's usage habits, so that the user has higher detection sensitivity during use of the receiver.

[0004] In a first aspect, the present application provides a receiver for detecting an electromagnetic field generated by a target cable, the receiver comprising:

[0005] a handle assembly, a length direction of the handle assembly being a preset direction; and

[0006] a first sensor, the first sensor being directly or indirectly borne by the handle assembly, a length direction of the first sensor being a first direction, the preset direction being perpendicular or almost perpendicular to the first direction when the receiver is in an initial detection state;

[0007] The first sensor is used to perceive the electromagnetic field generated by the target cable, and the handle assembly is used to analyze and process the electromagnetic field.

[0008] Optionally, the first sensor is arranged in the handle assembly and located at an end of the handle assembly.

[0009] Optionally, the receiver comprises a probe assembly, the probe assembly comprising a shell, the shell being directly or indirectly connected to the handle assembly, and the first sensor being borne in the shell.

[0010] Optionally, the shell comprises a supporting part and a connecting part connected to each other, the supporting part being provided with an accommodation space, the first sensor being arranged in the accommodation space, the connecting part being protruded from one side of the supporting part and connected to the handle assembly.

[0011] Optionally, the receiver further comprises an extension member, the shell of the probe assembly is indirectly connected to the handle assembly through the extension member.

[0012] Optionally, the extension member is a bendable universal pipe, when the universal pipe is in a straight line or close to a straight line, the receiver is in an initial detection state; or, the extension member is a telescopic pipe.

[0013] Optionally, the extension member is detachably connected to the handle assembly and the shell of the probe assembly respectively.

[0014] Optionally, the receiver further comprises a second sensor capable of sensing an electromagnetic field, a length direction of the second sensor is a second direction, the first direction and the second direction are perpendicular or almost perpendicular to each other.

[0015] Optionally, the receiver further comprises a third sensor capable of sensing an electromagnetic field, a length direction of the third sensor is a third direction, the first direction, the second direction and the third direction are perpendicular or almost perpendicular to each other.

[0016] In a second aspect, the present application further provides a detection instrument, the detection instrument comprises a transmitter and the above-mentioned receiver, the transmitter is used for applying an alternating current signal to a target cable, so that the target cable generates an electromagnetic field, and the receiver is used for detecting the electromagnetic field generated by the target cable.

[0017] In the receiver provided by the present application, when the receiver is in the initial detection state, the length direction of the handle assembly is perpendicular or almost perpendicular to the length direction of the first sensor, when the user holds the handle assembly with the hand and holds the handle assembly vertically or almost vertically to the ground or wall, the length direction of the first sensor is parallel or almost parallel to the ground, so that the first sensor can supply the magnetic induction lines to pass through in the length direction, compared with supplying the magnetic induction lines to pass through in the width direction, the design form of the present application improves the number of the magnetic induction lines passing through, and further improves the detection sensitivity of the receiver to the target cable. Therefore, the receiver provided by the present application can better match the use habit of the user, so that the user has higher detection sensitivity in the process of using the receiver. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The schematic diagram of the detection instrument provided by the present application.

[0020] Figure 2 A schematic diagram of a receiver provided for Embodiment 1 of the present application.

[0021] Figure 3 A schematic diagram of a receiver provided for Embodiment 1 of the present application detecting a target cable.

[0022] Figure 4 A schematic diagram of a probe assembly provided for Embodiment 1 of the present application.

[0023] Figure 5 A schematic diagram of a receiver provided for Embodiment 1 of the present application with an extension.

[0024] Figure 6 A schematic diagram of a receiver provided for Embodiment 2 of the present application.

[0025] Figure 7 A schematic diagram of a probe assembly provided for Embodiment of the present application comprising a first sensor and a second sensor.

[0026] Figure 8 A schematic diagram of a probe assembly provided for Embodiment of the present application comprising a first sensor, a second sensor and a third sensor.

[0027] Explanation of reference signs:

[0028] Detector 1; receiver 10; handle assembly 110; housing 111; probe assembly 120; first sensor 121; second sensor 122; third sensor 123; housing 129; receiving portion 1291; connecting portion 1292; extension 130; transmitter 20; first direction D1; second direction D2; third direction D3; preset direction D4. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0030] Reference to "an embodiment" or "the embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment or embodiments can be included in at least one embodiment. The appearances of the phrase "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all referring to a particular embodiment logically separated from the other embodiments of the application. It is explicitly contemplated that embodiments described herein can be combined with each other in their individual aspects.

[0031] Reference is made to Figure 1 The present application provides a detector 1 for detecting a target cable. The target cable can be a power cable, a communication cable, a control cable, a special cable, etc. The target cable can be a cable buried in the ground, a cable buried in a wall, a cable on the ground, etc. The present application takes the underground cable as an example for illustration.

[0032] The detector 1 includes a transmitter 20 and a receiver 10 described in any of the embodiments below. The transmitter 20 is configured to apply an alternating current signal to the target cable to make the target cable generate an electromagnetic field. The receiver 10 is configured to detect the electromagnetic field generated by the target cable.

[0033] Illustration: The transmitter 20 applies an alternating current signal of a specific frequency to the underground cable. The alternating current signal propagates along the direction of the underground cable and generates an electromagnetic field. The receiver 10 detects the intensity and distribution of the electromagnetic field to determine the position, direction and depth of the underground cable.

[0034] Reference is made to Figure 2 and Figure 3 The present application provides a receiver 10 for detecting an electromagnetic field generated by a target cable. The receiver 10 includes a handle assembly 110 and a first sensor 121.

[0035] The handle assembly 110 is a columnar handle with a certain length. The length direction of the handle assembly 110 is a preset direction D4. The handle assembly 110 can be held by a user's hand. The shape and size of the handle assembly 110 can be designed to match the user's hand, which facilitates the user to hold the handle assembly 110.

[0036] The first sensor 121 is in the shape of a long strip. The first sensor 121 is directly or indirectly carried on the handle assembly 110. The length direction of the first sensor 121 is a first direction D1. When the receiver 10 is in an initial detection state (e.g. the handle assembly 110 is parallel to the ground), the first direction D1 is parallel to the preset direction D4. Figure 2As shown in FIG. 1, the preset direction D4 is perpendicular or almost perpendicular to the first direction D1. The so-called initial detection state refers to the state when no artificial change (for example, artificial change of shape) is made to the receiver 10. The angle between the preset direction D4 and the first direction D1 can be 90±15°, and the angle can be 75°, 80°, 86°, 89°, 90°, 91°, 92°, 95°, 96°, 100°, 103°, 105°, etc.

[0037] The first sensor 121 is configured to sense the electromagnetic field generated by the target cable, and the handle assembly 110 is configured to analyze and process the electromagnetic field. For example, the first sensor 121 receives the electromagnetic signal from the underground cable and sends the electromagnetic signal to the handle assembly 110, and the handle assembly 110 further processes and analyzes the electromagnetic signal to obtain the strength and distribution of the electromagnetic field generated by the underground cable, so as to determine the position, direction and depth of the underground cable.

[0038] Generally, the underground cable is buried in the ground parallel to the ground, and when the underground cable generates an electromagnetic field, the magnetic induction lines of the electromagnetic field are closed loops and surround the underground cable. The sensitivity of the receiver detecting the underground cable is related to the number of magnetic induction lines passing through the sensor. The more the number of magnetic induction lines passing through the sensor, the more sensitive it is, and vice versa. In the related art, when the receiver is in the initial detection state, the length direction of the handle assembly is parallel or almost parallel to the length direction of the first sensor. However, when the user holds the handle assembly to detect the underground or in-wall cable, the user's habit is usually to hold the handle assembly perpendicular or almost perpendicular to the ground or wall, so that the length direction of the first sensor is also almost perpendicular to the ground. Therefore, the first sensor can only allow the magnetic induction lines to pass in the width direction, and since the width of the first sensor is small, the number of magnetic induction lines passing through the first sensor is also small, which results in low detection sensitivity.

[0039] In the receiver 10 provided in the present application, when the receiver 10 is in the initial detection state, the length direction of the handle assembly 110 is perpendicular or almost perpendicular to the length direction of the first sensor 121. When the user holds the handle assembly 110 and holds the handle assembly 110 perpendicular or almost perpendicular to the ground or wall, the length direction of the first sensor 121 is parallel or almost parallel to the ground (as shown in FIG. 1), so that the first sensor 121 can allow the magnetic induction lines to pass in the length direction. Compared with allowing the magnetic induction lines to pass in the width direction, the design form of the present application increases the number of magnetic induction lines passing through, and thus improves the detection sensitivity of the receiver 10 to the target cable. Therefore, the receiver 10 provided in the present application can better match the user's usage habit, so that the user has higher detection sensitivity during the use of the receiver 10. Figure 3 As shown in FIG. 1, the preset direction D4 is perpendicular or almost perpendicular to the first direction D1. The so-called initial detection state refers to the state when no artificial change (for example, artificial change of shape) is made to the receiver 10. The angle between the preset direction D4 and the first direction D1 can be 90±15°, and the angle can be 75°, 80°, 86°, 89°, 90°, 91°, 92°, 95°, 96°, 100°, 103°, 105°, etc.

[0040] The following will introduce two cases, one in which the first sensor is directly carried by the handle assembly and the other in which the first sensor is indirectly carried by the handle assembly.

[0041] Embodiment 1: The first sensor is indirectly carried by the handle assembly (as shown in Figures 1 to 5

[0042] Please refer to Figure 2 , the receiver 10 includes a probe assembly 120, and the probe assembly 120 includes a housing 129. The housing 129 is directly or indirectly connected to the handle assembly 110. The first sensor 121 is carried in the housing 129. The following will be specifically introduced in combination with the drawings.

[0043] Please refer to Figure 2 , the receiver 10 includes a handle assembly 110 and a probe assembly 120. The handle assembly 110 can be held by the user's hand. The shape and size of the handle assembly 110 can be designed to match the user's hand, so as to facilitate the user to hold. The probe assembly 120 is connected to one end of the handle assembly 110 in the length direction. The probe assembly 120 includes a first sensor 121, and the first sensor 121 is in a strip shape. The length direction of the first sensor 121 is the first direction D1, that is, the first direction D1 is the direction with the largest size of the first sensor 121 itself. The handle assembly 110 has a certain length, and the length direction of the handle assembly 110 is a preset direction D4. When the receiver 10 is in an initial detection state (as shown in Figure 2 ), the preset direction D4 is perpendicular or almost perpendicular to the first direction D1. The initial detection state refers to the state when no artificial changes (such as artificial changes in shape) are made to the receiver 10. In some embodiments, the receiver 10 can also have a curved detection state. For the initial detection state and the curved detection state, the following will be further described in combination with the drawings.

[0044] The first sensor 121 is used to perceive the electromagnetic field generated by the target cable, and the handle assembly 110 is used to analyze and process the electromagnetic field. Exemplary description: The first sensor 121 receives the electromagnetic signal from the underground cable and sends the electromagnetic signal to the handle assembly 110. The handle assembly 110 further processes and analyzes the electromagnetic signal to obtain the strength and distribution of the electromagnetic field generated by the underground cable, so as to determine the position, direction and depth of the underground cable.

[0045] Please refer to Figure 4 ​The probe assembly 120 further comprises a housing 129, which can be made of plastic, rubber or other material that does not interfere or hardly interferes with the magnetic field. The housing 129 comprises a receiving portion 1291 and a connecting portion 1292, which can be in one piece or in separate pieces. The receiving portion 1291 is provided with a receiving space, and the first sensor 121 is arranged in the receiving space, i.e. the receiving portion 1291 is hollow inside, and the first sensor 121 is arranged inside the receiving portion 1291. The connecting portion 1292 is arranged on one side of the receiving portion 1291, and is connected to the handle assembly 110. The connecting portion 1292 is arranged perpendicularly or almost perpendicularly to the length direction of the receiving portion 1291, so that the preset direction D4 is perpendicular or almost perpendicular to the first direction D1 when the receiver 10 is in the initial detection state. The angle between the connecting portion 1292 and the length direction of the receiving portion 1291 can be 90±15°, and can be 75°, 80°, 86°, 89°, 90°, 91°, 92°, 95°, 96°, 100°, 103°, 105°, etc.

[0046] Further, the receiving portion 1291 has a first end and a second end, which are two ends of the receiving portion 1291 in the length direction, i.e. the direction from the first end to the second end is the length direction of the receiving portion 1291. The connecting portion 1292 can be arranged at the first end, the second end or any position between the first end and the second end. Optionally, the connecting portion 1292 is arranged between the first end and the second end, and the distance from the connecting portion 1292 to the first end is equal to the distance from the connecting portion 1292 to the second end, as shown in Figure 4

[0047] Please refer to Figure 2 In an embodiment, the housing 129 of the probe assembly 120 is directly connected to one end of the handle assembly 110 in the length direction. The housing 129 of the probe assembly 120 and the handle assembly 110 can be detachably connected (e.g. by screwing) or non-detachably connected (e.g. by bonding). It can be understood that, by directly connecting the housing 129 of the probe assembly 120 to the handle assembly 110, the overall size of the receiver 10 can be reduced, which is convenient for storage and carrying. It should be noted that, for this embodiment, the receiver 10 only has the initial detection state.

[0048] Please refer to Figure 5 ​In the second embodiment, the receiver 10 further includes an extension member 130, through which the housing 129 of the probe assembly 120 is indirectly connected to the handle assembly 110. Specifically, the extension member 130 has a certain length, one end of which is connected to the housing 129 of the probe assembly 120, and the other end of which is connected to one end of the handle assembly 110 in the length direction. It is understood that by setting the extension member 130, the overall length of the receiver 10 is increased. When a user uses the receiver 10 to detect underground cables, the user does not need to bend over; when detecting cables inside walls at higher locations, the user can reach them without using a ladder. Therefore, setting the extension member 130 can bring convenience to the user. It should be noted that, in this embodiment, when the extension member 130 is straight or nearly straight, the receiver 10 is in the initial detection state.

[0049] for Figure 5 In one embodiment of the receiver 10 shown, the extension 130 is a flexible universal tube. A universal tube is a pipe that can be bent in multiple directions and maintain its shape; that is, it can be straightened or bent at any angle. The universal tube can be made of high-strength plastic, and its internal structure can include multiple joints or corrugations. It is understood that by using a universal tube for the extension 130, the user can freely adjust the shape and direction of the universal tube as needed, thereby changing the orientation and angle of the probe assembly 120 and maintaining stability, thus facilitating the user in handling different detection scenarios. When the extension 130 uses a universal tube, the receiver 10 has an initial detection state and a bent detection state; when the universal tube is straight or nearly straight, the receiver 10 is in the initial detection state; when the universal tube is bent, the receiver 10 is in the bent detection state.

[0050] for Figure 5 In another embodiment of the receiver 10 shown, the extension member 130 is a telescopic tube. A telescopic tube refers to a pipe or rod-like structure whose length can be freely adjusted. It consists of multiple nested segments, and its overall length can be changed by stretching or compressing; that is, the length of the telescopic tube is adjustable. It is understood that by using a telescopic tube for the extension member 130, the user can freely adjust the length of the telescopic tube as needed, thus facilitating the user's response to different detection scenarios. When the extension member 130 uses a telescopic tube, the receiver 10 only has an initial detection state.

[0051] Optionally, the extension 130 is detachably connected to the housing 129 of the handle assembly 110 and the probe assembly 120, respectively. The detachable connection can be, but not limited to, threaded connection (by inner and outer thread cooperation), buckle connection (by elastic buckle and socket cooperation), etc. It can be understood that, by using detachable connection, when the user needs to use the extension 130, it is installed between the handle assembly 110 and the probe assembly 120, and when it is not needed, it is removed, which can facilitate the user to cope with different detection scenes, and also facilitate storage and carrying. Moreover, the extension 130 can be replaced by different sizes. Further optionally, the handle assembly 110 and the probe assembly 120 are detachably connected, which can further expand the application scenarios.

[0052] Optionally, the probe assembly 120 can rotate relative to the handle assembly 110. In one embodiment, the probe assembly 120 is directly rotationally connected to the handle assembly 110. In another embodiment, the probe assembly 120 is indirectly rotationally connected to the handle assembly 110 through the extension 130, for example, the probe assembly 120 is rotationally connected to the extension 130 and the extension 130 is fixedly connected to the handle assembly 110, for another example, the probe assembly 120 is fixedly connected to the extension 130 and the extension 130 is rotationally connected to the handle assembly 110. Further optionally, the receiver 10 can also include a driving motor capable of outputting rotary motion, which can be installed on the handle assembly 110. The output shaft of the driving motor is directly connected to the probe assembly 120 or connected to the probe assembly 120 through the extension 130. During the use of the receiver 10 to detect the target cable, the user can control the rotation of the probe assembly 120 relative to the handle assembly 110 through the driving motor, which can try to find the orientation of the probe assembly 120 when it is most penetrated by the magnetic induction line, thereby helping the user to determine the position and direction of the target cable.

[0053] Optionally, the handle assembly 110 is detachably connected to the transmitter 20. When the user is not using the detector 1, the transmitter 20 and the receiver 10 can be detachably connected together, so that they can be stored and carried together without being easily lost, and also facilitate the next use.

[0054] Embodiment 2: The first sensor is directly carried on the handle assembly (such as Figure 6 as shown)

[0055] Please refer to Figure 6The first sensor 121 is arranged in the handle assembly 110 and located at the end of the handle assembly 110. The handle assembly 110 comprises a housing 111, and the first sensor 121 is arranged in the housing 111, thereby protecting the first sensor 121. The first sensor 121 can be directly connected to the housing 111 or indirectly carried on the housing 111 through other components, which is not limited herein. The material of the housing 111 can be, but is not limited to, plastic, rubber or other materials that do not interfere or almost do not interfere with the magnetic field. It should be noted that, for this embodiment, the receiver 10 only has an initial detection state.

[0056] The above is the two setting forms of the first sensor 121 relative to the handle assembly 110.

[0057] Please refer to Figure 7 The receiver 10 further comprises a second sensor 122 capable of sensing an electromagnetic field. The first sensor 121 and the second sensor 122 can be connected as a whole or separated from each other. The length direction of the second sensor 122 is a second direction D2, and the first direction D1 and the second direction D2 are perpendicular or almost perpendicular to each other. The first sensor 121 and the second sensor 122 can simultaneously sense the electromagnetic field of the target electromagnetic field, which is equivalent to sensing in XY two directions, thereby further improving the detection sensitivity of the receiver 10 to the target cable. The included angle between the first direction D1 and the second direction D2 can be 90±15°, and the included angle can be 75°, 80°, 86°, 89°, 90°, 91°, 92°, 95°, 96°, 100°, 103°, 105°, etc.

[0058] Please refer to Figure 8The receiver 10 further comprises a third sensor 123 capable of sensing an electromagnetic field, and the first sensor 121, the second sensor 122 and the third sensor 123 can be connected as a whole or separated from each other. The length direction of the third sensor 123 is a third direction D3, and the first direction D1, the second direction D2 and the third direction D3 are perpendicular to each other or almost perpendicular to each other. The first sensor 121, the second sensor 122 and the third sensor 123 can simultaneously sense the electromagnetic field of the target electromagnetic field, which is equivalent to sensing in XYZ three directions, so as to further improve the detection sensitivity of the receiver 10 to the target cable. It should be noted that any one of the second direction D2 and the third direction D3 can be the same as the preset direction D4, or the preset direction D4, the second direction D2 and the third direction D3 are different from each other. The included angle between any two of the first direction D1, the second direction D2 and the third direction D3 can be 90±15°, and the included angle can be 75°, 80°, 86°, 89°, 90°, 91°, 92°, 95°, 96°, 100°, 103°, 105°, etc.

[0059] Optionally, the handle assembly 110 is provided with an indicating member for indicating the strength of the electromagnetic field, so as to help the user to determine the position of the target cable. The indicating member can be arranged inside the handle assembly 110 or exposed outside the handle assembly 110, which is not limited herein. The indicating member can be one or more of a signal indicating lamp, a loudspeaker, a buzzer, a vibrator, etc. The handle assembly 110 can further comprise a processor, and the above-mentioned probe assembly 120 (such as the first sensor 121) is directly or indirectly electrically connected to the processor, and the processor is directly or indirectly electrically connected to the indicating member. In the process of using the receiver 10 to detect the target cable, if the probe assembly 120 senses the electromagnetic signal from the target cable, the processor processes and analyzes the electromagnetic signal, and controls the indicating member to generate a corresponding indicating behavior according to the analysis structure.

[0060] Taking the signal indicating lamp as an example, in the process of the user holding the receiver 10 to detect the target cable at different positions, if the probe assembly 120 senses the electromagnetic field of the target cable, the processor controls the signal indicating lamp to flash at a set frequency; if the probe assembly 120 senses the electromagnetic field to be enhanced at the next moment, the processor controls the flashing frequency of the signal indicating lamp to increase, which indicates that the probe assembly 120 is approaching the target cable; if the probe assembly 120 senses the electromagnetic field to be weakened at the next moment, the processor controls the flashing frequency of the signal indicating lamp to decrease, which indicates that the probe assembly 120 is moving away from the target cable.

[0061] For example, the indicator is a speaker: during the process of detecting the target cable by the user holding the receiver 10 at different positions, if the probe assembly 120 senses the electromagnetic field of the target cable, the processor controls the speaker to emit a "drop" sound at a set frequency; if the probe assembly 120 senses the electromagnetic field to be enhanced at the next moment, the processor controls the frequency of the "drop" sound of the speaker to be increased, which indicates that the probe assembly 120 is approaching the target cable; if the probe assembly 120 senses the electromagnetic field to be weakened at the next moment, the processor controls the frequency of the "drop" sound of the speaker to be decreased, which indicates that the probe assembly 120 is moving away from the target cable.

[0062] For example, the indicator is a buzzer: during the process of detecting the target cable by the user holding the receiver 10 at different positions, if the probe assembly 120 senses the electromagnetic field of the target cable, the processor controls the buzzer to emit a "drop" sound at a set volume; if the probe assembly 120 senses the electromagnetic field to be enhanced at the next moment, the processor controls the volume of the "drop" sound of the buzzer to be increased, which indicates that the probe assembly 120 is approaching the target cable; if the probe assembly 120 senses the electromagnetic field to be weakened at the next moment, the processor controls the volume of the "drop" sound of the buzzer to be decreased, which indicates that the probe assembly 120 is moving away from the target cable.

[0063] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application, and these improvements and refinements are also considered as the protection scope of the present application.

Claims

1. A receiver, characterized in that, The receiver is used to detect the electromagnetic field generated by the target cable, and includes: A handle assembly, wherein the length direction of the handle assembly is a preset direction; and A first sensor is directly or indirectly mounted on the handle assembly. The length direction of the first sensor is a first direction. When the receiver is in the initial detection state, the preset direction is perpendicular or almost perpendicular to the first direction. The first sensor is used to sense the electromagnetic field generated by the target cable, and the handle assembly is used to analyze and process the electromagnetic field.

2. The receiver as described in claim 1, characterized in that, The first sensor is disposed within the handle assembly and located at the end of the handle assembly.

3. The receiver as described in claim 1, characterized in that, The receiver includes a probe assembly, which includes a housing that is directly or indirectly connected to the handle assembly, and the first sensor is housed within the housing.

4. The receiver as described in claim 3, characterized in that, The housing includes a receiving part and a connecting part connected to each other. The receiving part has a receiving space, and the first sensor is disposed in the receiving space. The connecting part protrudes from one side of the receiving part and is connected to the handle assembly.

5. The receiver as described in claim 3, characterized in that, The receiver also includes an extension, through which the housing of the probe assembly is indirectly connected to the handle assembly.

6. The receiver as described in claim 5, characterized in that, The extension is a flexible universal tube. When the universal tube is straight or nearly straight, the receiver is in the initial detection state. Alternatively, the extension member may be a retractable telescopic tube.

7. The receiver as described in claim 5, characterized in that, The extension is detachably connected to the housings of the handle assembly and the probe assembly, respectively.

8. The receiver as described in any one of claims 1 to 7, characterized in that, The receiver also includes a second sensor capable of sensing electromagnetic fields, the length direction of the second sensor being a second direction, and the first direction being perpendicular or nearly perpendicular to the second direction.

9. The receiver as claimed in claim 8, characterized in that, The receiver also includes a third sensor capable of sensing electromagnetic fields. The length direction of the third sensor is a third direction, and the first direction, the second direction, and the third direction are perpendicular or nearly perpendicular to each other.

10. A detector, characterized in that, The detector includes a transmitter and a receiver as described in any one of claims 1 to 9, the transmitter being used to apply an alternating current signal to the target cable to cause the target cable to generate an electromagnetic field, and the receiver being used to detect the electromagnetic field generated by the target cable.

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