80 results about "Continuity test" patented technology

The invention relates to the technical field of wire harness detection, and particularly discloses a new energy automobile wire harness conduction test system, which is used for solving the problems of low detection precision and poor abnormity identification and data tracing capabilities in a complex structure wire harness and an extreme abnormal state in the prior art. The system comprises a data acquisition module for multi-group constant current excitation and high-resolution acquisition based on a four-line method, a dynamic anomaly analysis module with sliding window processing and adaptive threshold discrimination capabilities, and a level-to-level management module for automatic multi-layer grouping according to parameterized feature tags, through high-frequency multi-round synchronous detection, trend change modeling and grouped closed-loop parameter adjustment, high-precision detection, whole-process intelligent recheck and whole-process dynamic traceability of the multi-loop conduction state and multi-type abnormity of the new energy automobile wire harness are realized; and the safety and the detection management level of the wire harness system are effectively improved.

The utility model discloses an automobile lamp wire harness conduction test tool, which comprises an engineering substrate and a flat cable assembly, the flat cable assembly comprises a fixed plugging block arranged on the surface of the engineering substrate, a clamping groove with two open ends is arranged in the fixed plugging block, and an automobile lamp wire harness is plugged in the clamping groove in the fixed plugging block through the openings at the two ends. And a locking block for preventing the outer sheath of the automobile lamp wire harness from falling off is arranged on the fixed insertion block. One-to-one corresponding spring probe fixing point positions are designed in the fixed plugging block according to terminals in a wire harness sheath, so that each to-be-tested point position of the wire harness can independently correspond, and a locking block is designed on the fixed plugging module, so that the wire harness sheath is prevented from being pulled out of the fixed plugging block when being pulled by external force along with a wire during testing, and the wire harness sheath is prevented from being damaged. And the locking block and the fixed plugging block are fixed through a self-tapping screw, so that the conduction test operation of the lamp wire harness can be carried out more quickly, effectively, accurately, comprehensively and smoothly.

A pipeline application strength test device relates to the technical field of pipeline structural strength test, and comprises a test box, the test box is a horizontally arranged square box, and the test box is internally provided with a conveying transfer assembly, an appearance detection assembly, a bending pressure test assembly and an air tightness detection assembly; each transverse side end face of the test box is provided with a square feeding and discharging port, and the size of the feeding and discharging port is larger than the outer diameter of the test pipeline. The problems that when detection equipment in the prior art is used for testing the performance strength of a pipeline, appearance detection is not comprehensive, a bending pressure testing part is inconvenient to adjust, the pipeline is inconvenient to transfer in the continuous testing process, the testing sequence is not reasonable, and consequently detection errors are caused, and airtightness testing operation is inconvenient are solved.

The invention provides a circuit board testing device. The circuit board testing device comprises a rotation driving assembly, a positioning assembly and a testing assembly, the positioning assembly comprises a bearing plate and at least two positioning pieces arranged at intervals, the bearing plate is connected with the output end of the rotation driving assembly, and the rotation driving assembly is used for driving the bearing plate to rotate; each positioning piece is movably connected with the bearing plate, each positioning piece is provided with a positioning position and a releasing position, each positioning piece can position or release the circuit board, when the positioning pieces move to the testing station, the positioning pieces are located at the positioning positions and position the circuit board, and when the positioning pieces move to the discharging station, the positioning pieces are located at the releasing positions and release the circuit board. When the positioning piece moves to the discharging station, the positioning piece is located at the releasing position and releases the circuit board, and the testing assembly is used for testing the circuit board located at the testing station. According to the circuit board testing device, continuous testing operation is achieved, the reliability of circuit board testing is guaranteed, and discharging of the tested circuit board is facilitated.

The invention relates to the technical field of locomotive line detection, in particular to a line detection system and device for a locomotive main transformer, and the system comprises a transformer which comprises an input side and an output side, the input side is used for being connected with a power supply, the output side comprises an end a and an end n, the end a is used for being connected with the end A of the main transformer, and the end n is used for being connected with the end X of the main transformer; the end a is connected with an over-current relay; the input side is connected with a conduction test loop, an operation test loop and an overload test loop; the conduction test loop is used for testing the conduction states of the main transformer, the a end and the n end; the operation test loop is used for carrying out power supply detection on the main transformer; when the transformer is in overload operation, the overcurrent relay drives the overload test loop to be conducted; therefore, through the arrangement of the conduction test loop, the operation test loop and the overload test loop, the conduction state, the power supply condition and the overload condition of the main transformer line can be rapidly detected, and cumbersome connection and disconnection operation is not needed.

Efficient continuity testing for instruments connected to a mass interconnect. Digital input and output capabilities may be used on each pin of the mass interconnect to test a variety of input / output (I / O) types on a device under test. Each pin of the interconnect may connect to a respective corresponding digital input and digital output in the tester, with the digital input resistively coupled to the digital output. The connectivity of the pin to the digital input and the digital output, and the connectivity between the digital input and the digital output may be implemented with shift registers and a buffer stage, respectively. In some embodiments, the structure may be implemented through parallel I / O blocks, as in a complex programmable logic device (CPLD), field programmable gate array (FPGA), or microcontroller.

The invention discloses a connector welding conduction testing method and system, and relates to the technical field of welding conduction testing, and the method comprises the steps: recording the voltage, current, pressure and welding duration of welding equipment in a welding process, calculating the abnormal coefficient of the welding process, and calculating the abnormal coefficient of the welding process; the historical welding age limit, the historical welding qualified rate and the welding speed of welding operators are obtained, the reliability coefficient of the welding operators is calculated, the welding operation risk index is calculated, and connector welding abnormity early warning is sent out; after the welding point connector welding abnormity early warning is received, the current and voltage of a to-be-detected welding point and the current and voltage between the to-be-detected welding point and other welding points of the connector are obtained, the conduction abnormity coefficient of the to-be-detected welding point and the conduction abnormity coefficient between the welding points are calculated, and the conduction index of the to-be-detected welding point is further calculated; and sending out a connector welding conduction abnormity early warning to the outside. And when risks exist in the welding operation, conduction test analysis is carried out, so that unnecessary redundancy tests can be avoided, and time and resources are further saved.

The present application relates to a stator stripping, kinking, tinning and testing all-in-one machine, comprising a frame, a turntable rotatably mounted on the frame, a plurality of stator fixing seats for fixing the stator circumferentially arranged on the turntable, a stripping assembly, a kinking assembly, a wire cutting assembly, a tinning assembly and a continuity test assembly arranged in sequence on the frame circumferentially around the turntable, and each stator fixing seat passes through the stripping assembly, the kinking assembly, the wire cutting assembly, the tinning assembly and the continuity test assembly one by one to process the wire ends on the fixed stator. The present application fixes the stator on the stator fixing seat, and passes the stator through the stripping assembly, the kinking assembly, the wire cutting assembly, the tinning assembly and the continuity test assembly one by one through the turntable, thereby completing the stripping, kinking, wire cutting, tinning and continuity testing of the stator wire ends. The present application has high efficiency in completing the above-mentioned stator processing, and only requires one person to perform it, which effectively saves manpower.

The present invention relates to the technical field of chip testing, and discloses a mass production test method and system for the continuity of the bridging path of an incompletely pop-packaged chip. The chip to be tested is placed on a detection board, and each bottom solder ball of the chip is electrically connected to a test socket on the detection board. A transfer board is placed on the detection board, and the transfer board is connected to each top solder ball of the chip from above, so that the top solder balls of the chip are short-circuited in groups of two. After the short circuit, power-on tests are respectively carried out in groups to judge the continuity state of the pins of the chip. This method uses a transfer board to short-circuit the top solder balls, quickly conducts continuity tests, simplifies the test process, is easy to operate, is applicable to incompletely pop-packaged chips in mass production, and improves the detection efficiency and convenience while maintaining the effectiveness and accuracy of the test.

The invention discloses a method and a system for integrating secondary current loop direct current resistance test and fixed detection test, and relates to the technical field of power grid loop detection, and the method comprises the steps: switching a function module of an instrument to a load test module, and carrying out the internal function verification of the device; a function module of the instrument is switched to a resistance test module, the integrity of a secondary current loop is judged through the direct resistance value difference of the secondary current loop, and the state of secondary wiring is judged through an insulation resistor; the functional module of the instrument is switched to the conduction test module, and the core before secondary wiring is tested to ensure that the wiring at the two ends of the cable is consistent. The device is portable and can be conveniently carried to the site for effective verification, the efficiency of regular verification of the secondary monitoring protection equipment is greatly improved, it can be ensured that the secondary monitoring protection equipment is safely and reliably put into operation, the blank that no professional detection tool exists in the aspect of secondary detection of the integrity of a current loop is filled, and the practicability is high. The problems that current secondary current loop detection work is incomplete, and hidden dangers existing in a secondary current loop cannot be found in time are solved.

The utility model discloses an automobile wire harness length and loop inspection device, which comprises a shell, a connector root tolerance zone, a first conduction module, a second conduction module, a conduction terminal and a light source, the upper side of the shell is provided with the first conduction module and the second conduction module, the upper side of the first conduction module and the upper side of the second conduction module are provided with conduction terminals, and the conduction terminals are connected with the end part of a circuit in the automobile wire harness to be inspected; the connector root tolerance zone is arranged on the upper side of the shell, the square hollow hole is formed in the center of the connector root tolerance zone, the light source is arranged in the shell, and light beams emitted by the light source can penetrate through the square hollow hole. According to the invention, the length of the automobile wire harness is checked while the conduction test of the automobile wire harness is carried out, the circulation process of the production of the automobile wire harness is simplified, and the production efficiency is improved.

1. Name of the product of this design: Graphical user interface for instrument detection and control of electronic equipment. 2. Purpose of this design product: an electronic device. 3. The key design point of this design product lies in the interface content of the graphical user interface on the screen. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. The electronic device has a conventional design. The rear view, left side view, right side view, top view, and bottom view of Design 1-Design 3 are omitted. 6. Designate Design 1 as the base design. 7. Purpose of Graphical User Interface: Graphical User Interface is used to display, manage, control and operate various electrical data detected by multimeter. The Design 1 main view is the display interface of the home page. Click any blank area of ​​the Design 1 main view to enter the Design 1 interface change state diagram 1, which is the display interface for automatically identifying the measurement gear. When the instrument automatically identifies the voltage to be measured, the yellow indicator bar at the bottom of the Design 1 interface change state diagram 1 adjusts the gear to other gears (such as the voltage gear at the second gear position), or click and slide the yellow indicator bar at the bottom of the Design 1 interface change state diagram 1 main view to adjust the gear to other gears (such as the voltage gear at the second gear position) to enter the Design 1 interface change state diagram 2. When the instrument automatically identifies that the resistance value of the resistor to be measured is lower than the threshold of the on-off test gear, the yellow indicator bar at the bottom of the Design 1 interface change state diagram 2 adjusts the gear to other gears (such as The continuity test gear is located at the second gear position), or the yellow indicator bar below the sliding design 1 interface change state diagram 2 is adjusted to other gears (such as the continuity test gear at the third gear position), and the design 1 interface change state diagram 3 is entered; when the meter automatically recognizes the resistance to be measured, the yellow indicator bar below the design 1 interface change state diagram 3 is adjusted to other gears (such as the resistance gear at the fourth gear position), or the yellow indicator bar below the sliding design 1 interface change state diagram 3 is adjusted to other gears (such as the resistance gear at the fourth gear position), and the design 1 interface change state diagram 4 is entered; when the mA input hole of the meter detects that the test lead to be tested is inserted, the yellow indicator bar below the design 1 interface change state diagram 4 is adjusted Adjust the gear to other gears (such as the mA gear at the tenth gear position), or click and slide the yellow indicator bar at the bottom of the design 1 interface change state diagram 4 to adjust the gear to other gears (such as the mA gear at the tenth gear position), and enter the design 1 interface change state diagram 5; when the 10A input hole of the instrument detects that the test lead to be tested is inserted, adjust the gear to other gears (such as the 10A gear at the eleventh gear position) by clicking the yellow indicator bar at the bottom of the design 1 interface change state diagram 5, or click and slide the yellow indicator bar at the bottom of the design 1 interface change state diagram 5 to adjust the gear to other gears (such as the 10A gear at the eleventh gear position), and enter the design 1 interface change state diagram 6; the design 2 main view is the user-controlled instrument gear selection button 1. Click the yellow indicator bar below the sliding design 2 interface change state diagram 1 to adjust the gear position to other gear positions, and enter the design 2 interface change state diagram 2; click the yellow indicator bar below the sliding design 2 interface change state diagram 2 to adjust the gear position to other gear positions, and enter the design 2 interface change state diagram 3; click the yellow indicator bar below the sliding design 2 interface change state diagram 3 to adjust the gear position to other gear positions, and enter the design 2 interface change state diagram 4; click the yellow indicator bar below the sliding design 2 interface change state diagram 4 to adjust the gear position to other gear positions, and enter the design 2 interface change state diagram 5;Click the yellow indicator bar below the sliding Design 2 interface change state diagram 5 to adjust the gear to another gear, and enter the Design 2 interface change state diagram 6; click the yellow indicator bar below the sliding Design 2 interface change state diagram 6 to adjust the gear to another gear, and enter the Design 2 interface change state diagram 7; the Design 3 main view shows the display interface when the mA fuse is blown. Click the yellow indicator bar below the sliding Design 3 main view to adjust the gear to another gear, and enter the Design 3 interface change state diagram, which shows the display interface when the 10A fuse is blown.

This invention relates to the field of terminal wire harness continuity testing, specifically to a terminal wire harness continuity testing device, including a base and a bracket. A support groove is formed along the length of the bracket on its upper part, with one end of the groove open. Multiple terminal wire harnesses are evenly arranged along the extension direction of the support groove, passing through it. An extension plate is fixed vertically at the lower part of the support groove, with the extension plates evenly arranged along the extension direction of the groove and a first gap between adjacent extension plates. A second gap exists between adjacent individual wire harnesses within the terminal wire harness, the size of which is equal to the size of the first and second gaps. A wire management unit is also provided below the support groove, located on the side of the terminal wire harness away from the extension plates. The wire management unit includes a pressing rod that moves horizontally. This invention reduces the workload during testing and avoids damage to the terminal wire harness during automatic testing.

The invention relates to the technical field of detection devices, and discloses a connector appearance detection device which comprises a device shell, the device shell comprises a bottom box and a top box, a detection table is arranged between the bottom box and the top box, a rotating disc is rotatably arranged in the center of the surface of the upper end of the detection table, and a carrying seat is arranged on the surface of the upper end of the rotating disc. An AOI visual appearance detection unit is arranged on the surface of the upper end of the detection table and located on one side of the rotating disc, a conduction test unit is arranged on one side of the AOI visual appearance detection unit, and a good product laser two-dimensional code printing unit is arranged on the side, away from the AOI visual appearance detection unit, of the conduction test unit. A defective product taking-out unit is arranged on the side, away from the AOI visual appearance detection unit, of the rotating disc, and a code reading unit is arranged between the good product laser two-dimensional code printing unit and the defective product taking-out unit. According to the connector appearance detection device, appearance and function conduction tests can be synchronously carried out on products, defective products are automatically removed, time and labor are saved, and the detection effect is good.

The present invention relates to the technical field of cable processing, and in particular to a cable continuity test apparatus, comprising: a cable clamping assembly, wherein the cable clamping assembly comprises clamping claws, and the clamping claws are used for clamping a cable jacket; and a test assembly arranged opposite to a clamping center of the cable clamping assembly, wherein the test assembly comprises two first test clamps, two second test clamps and two third test clamps; the first test clamps are cylindrical and are used for clamping a shielding layer; the second test clamps and the third test clamps are sheet-shaped, and the end of each of the second test clamps and the third test clamps facing the cable is provided with a semicircular recess; two sets of the semicircular recesses are respectively used for clamping an insulating layer and a central conductor of the cable; a circle formed by combining the two semicircular recesses of the second test clamps is adapted to the outer diameter of the insulating layer, and the two second test clamps are conductors; when an insulator is clamped in place, the two second test clamps can be electrically connected; and the first test clamps, the second test clamps, and the third test clamps are further used for power-on test between every two test clamps.

The utility model relates to the technical field of detection devices, in particular to a data line on-off testing device, and solves the problems that in most of the existing testing devices in the prior art, a person holds a data line by hand and inserts the data line into a socket of a detected machine box to judge whether the data line is qualified or not, and the mode brings great workload to the person and is inconvenient to use. And meanwhile, the problems of low detection efficiency and reduced practicability of the device caused by missing detection of the data line due to fatigue of the personnel during long-time operation are solved. A data line on-off testing device comprises a machine box, a plurality of sockets are formed in one side of the machine box in a linear array mode, a fixing plate is fixedly installed on one side of the machine box, an installation plate is arranged on the top of the fixing plate, and a plurality of installation rings are arranged above the installation plate in a linear array mode. According to the utility model, the data line is effectively and conveniently detected, the workload of personnel is reduced, and the practicability of the device is improved.

A method for operating a clamp monitoring system includes a control system that receives confirmation that a workpiece has entered a test area within a workstation. In response to receiving this confirmation, the control system issues command prompts to: (1) position a continuity test device at a target clamping location where a hose clamp secures a hose to a hose connector on the workpiece, and (2) activate the test device after it has been positioned at the target clamping location. The test device transmits continuity data indicating electrical continuity of the hose clamp to the control system. A position sensing device transmits position data indicating the real-time position of the device to the control system.The controller issues a message indicating that the hose clamp is properly attached to the workpiece when the continuity state shows electrical continuity at the hose clamp and the real-time fixture position matches the target clamping location.

The invention relates to the field of photo-thermal equipment and component manufacturing thereof, in particular to a rotary feeding device for automatically screening positive and negative electrodes of components, which comprises a rotary conveying mechanism and a positive and negative electrode detecting and screening mechanism, the rotary conveying mechanism comprises a rotary disc capable of intermittently rotating, a clamping piece circumferentially arranged on the rotary disc and at least two clamping unlocking pieces; the clamping piece comprises a clamping block for clamping the component and an elastic reset structure for providing an acting force for downward pressing of the clamping block; the clamping unlocking piece can slide to the position below any clamping piece to lift the clamping piece. And the positive and negative electrode detecting and screening mechanism comprises a conduction test table for detecting positive and negative electrode pins of the components and a component recycling assembly, when abnormity is detected, the clamping unlocking piece lifts the clamping piece, and meanwhile, the component recycling assembly recycles the components. According to the device, the processing efficiency and the transfer efficiency of the photo-thermal equipment components are improved, the transfer matching time is shortened, meanwhile, the flexibility and the universality of the transfer device are improved, and the practicability of multi-scene processing is improved.

A flexible optical fiber ribbon and a bonding effect testing system and method thereof. The flexible optical fiber ribbon comprises multiple optical fibers arranged side by side, and intermittent bonding portions are arranged between adjacent optical fibers; the transmittance of the intermittent bonding portions to the testing optical wavelength band is 50% or below; an optical fiber coating layer is wrapped by a colored layer, and the colored layer is wrapped by a light transmissive layer; the transmittance of the colored layer to the testing optical wavelength band is 30% or below, and the transmittance of the light transmissive layer to the testing optical wavelength band is 85% or above; and the bonding portions having standard conforming bonding effect cover the light transmissive layer in the direction of the testing light. In the present invention, a photosensitive component is used in conjunction to implement continuity testing by utilizing an optical signal, and thus the sensitivity, accuracy, and speed far exceed imaging testing. In the present invention, an optical signal continuity test is used to avoid defects such as image smearing and image retention caused by traditional imaging testing, significantly increasing testing efficiency, removing the manufacturing speed bottleneck caused by quality monitoring in a production line, and enhancing the manufacturing efficiency.

Methods and pad structures to test via accuracy are provided. A method according to the present disclosure includes forming a first pad and a second pad on a device component, wherein the second pad includes a via landing area and a clearance opening, providing a core substrate that includes a cavity, placing the device component in the cavity, forming a build-up film over the device component and the core substrate, forming a first contact via extending through the build-up film to contact the landing area and a second contact via extending through build-up film and the clearance opening, and performing a continuity test to determine whether the second contact via is in contact with the second pad.

This invention provides an automated testing method and equipment for multi-channel controlled USB connection continuity. The method includes the following steps: S1: Connect the USB continuity test box to a 5V power input port; S2: Insert the test USB peripheral into the USB female connector; S3: Insert the USB continuity test male connector into the USB female connector of the terminal under test; S4: Connect the serial port input port to a computer and input serial port control commands to the serial port control module via the computer; S5: After receiving the commands, the serial port control module controls the opening and closing of the serial port relay to realize the continuity of the VCC power supply line. This invention uses automated USB connection continuity testing. By designing a script on the computer to control the continuity of the 5V power input of the USB VCC, the USB connection continuity test can be realized. This invention is reliable, low-cost, and the testing method is simple and easy to operate.

The present invention relates to the technical field of wire harness continuity testing, and discloses a wire harness continuity testing device, comprising a machine base, a driving component and a testing component arranged on the machine base, an assembly component arranged on the testing component, and a positioning mechanism arranged on the assembly component; the testing component comprises an upper test base fixedly assembled on the driving component, and a lower test base fixedly assembled on the machine base. The wire harness continuity testing device can effectively ensure the consistency of each operation through this testing method, and ensure that the force, angle, speed and other parameters during the plugging and unplugging of the wire harness connector are always consistent. In traditional testing methods, manual plugging and unplugging operations are easily affected by human factors, resulting in unstable test results. The standardized operation method of the present application avoids human errors, improves the repeatability and reliability of test results, effectively reduces product quality risks, and improves the overall quality level of the product.

This invention relates to the field of chip testing technology, and discloses a continuity test interface board, a method for automatically generating channel correspondences, and a storage medium. The method includes a test interface board with several square test areas centered on the same point. These square test areas increase proportionally from the inside out along the diagonal of the test interface board. Each square test area has an equal number of pads connected to its outer side, with the pads evenly spaced. The other end of each pad is located outside the test interface board. The pads connected to the inner square test areas pass through the outer square test areas and are positioned between the pads connected to the outer square test areas. By strategically arranging the pads, the test interface board can be compatible with various types and specifications of chips under test. Furthermore, the correspondence between pads and channels improves the overall efficiency of chip testing, ensures the accuracy of complex package testing, and enhances the degree of automated testing.

The present invention discloses a continuous current monitoring method and system, which relates to the technical field of photovoltaic module performance testing, and includes: S1, modeling, which includes: establishing at least a three-dimensional model of a test cabinet of a photovoltaic current continuity test system; defining the wiring parts of the three-dimensional model based on the real object in a computer, and calculating the real space coordinate parameters of each wiring part to establish a one-to-one correspondence; S2, establishing a test process verification basis, which includes: using a number of smart wearable devices worn on the hands as an operation point calibration mechanism; recording the properties of multiple categories of photovoltaic modules in the computer and assigning identification codes respectively; assigning a test plan to any identification code in the computer and recording it; establishing a communication connection between the computer, which serves as the point calibration mechanism, and the photovoltaic current continuity test system; S3, test execution under monitoring. This application has the effect of making the photovoltaic current continuity test process simpler and the system more convenient to use.

To provide a conduction inspection system capable of easily performing conduction inspection of a wire harness while suppressing a burden on a worker.SOLUTION: The conduction inspection system 40 includes a laser device 80, a first infrared camera 110, and a control device 200. The control device 200 controls the laser device 80 so as to irradiate a terminal to be irradiated electrically connected to an electric wire to be inspected with laser light for a predetermined time. The control device 200 controls the first infrared camera 110 to acquire the first and second temperature information of the terminal to be measured electrically connected to the electric wire to be inspected before and after irradiating the terminal to be irradiated with the laser light. The control device 200 calculates a value of the temperature change of the terminal to be measured based on the first temperature information and the second temperature information. The control device 200 determines the continuity state of the electric wire to be inspected based on the value of the temperature change of the terminal to be measured and the reference value associated with the electric wire to be inspected.SELECTED DRAWING: Figure 1

Systems and methods are provided for improved installation speed and reliability for mechanical cable splices to safely retrieve an armored electrical cable and attached electrical submersible pump (ESP) from a wellbore. The ESP can be brought to the surface for replacement or maintenance and reinstallation along with the same armored power cable. Embodiments of cable splice devices are provided to establish a strong splice having tensile strength required or exceeding that needed to retrieve the cable and ESP from the wellbore safely. A bypass load-bearing clamp may be used temporarily to further assist the tensile strength of the cable non-electrical splice if such tensile strength is deemed insufficient to safely overcome the required retrieval forces. Furthermore, the splice includes a short-circuit electrical connector that enables a quick electrical continuity test for determining if the cable is suitable for redeployment.

The invention provides a conduction test system and a control method thereof.The conduction test system comprises a first probe, a second probe, a third probe, a fourth probe, a first switch, a second switch and a control module, and the first end of the first probe and the first end of the second probe are used for making contact with a first metal piece; the first end of the third probe and the first end of the fourth probe are used for making contact with second metal, the second end of the first probe is connected with the first power end of the conduction test system, and the second end of the second probe is connected with the second power end of the conduction test system and a first detection point of the conduction test system. The second end of the third probe is connected with the first power supply end, the second end of the fourth probe is connected with the second power supply end and a second detection point of the conduction test system, and the first switch is connected between the second end of the second probe and the second power supply end and between the second end of the second probe and the first detection point. And the second switch is connected between the second end of the third probe and the first power supply end.

This invention discloses a communication structure for a test module based on a continuity tester, comprising: a continuity test host, having a host MCU and host data signal output and input terminals connected thereto; a continuity test point board, having multiple communication interfaces, each of which is connected to a test bus via a corresponding first switch and grounded via a corresponding second switch; and multiple communication node modules, each having a module indicator light, a node MCU, and node data signal input and output terminals connected thereto. The module indicator lights, node data signal inputs, and node data signal outputs are all connected to their respective communication interfaces via module indicator light control lines, and the module indicator lights are also connected to the host MCU via indicator light enable signal lines. This structure forms a communication network connecting all test modules, enabling the test host to read and save the test results and parameter settings of the test modules, thus achieving traceability of the tested products.

Embodiments according to the present invention include a device for providing an electrical test signal, for performing a continuity test of an electrical line of an object, including: a communication module configured to receive an activation signal for switching the device from a passive operating mode to an active operating mode, and to obtain a deactivation signal for switching the device from the active operating mode to the passive operating mode. Furthermore, the device includes a signal generator configured to generate the electrical test signal in the active operating mode. In addition, the device includes an energy source configured to supply the communication module and the signal generator with energy. The device also includes a coupling-in module configured to couple the electrical test signal into the electrical line of the object in the active operating mode.

An end effector has an end effector frame configured to be mounted to a movable platform capable of positioning the end effector relative to a structure. In addition, the end effector has a plurality of process tools mounted to the end effector frame and having different functional capabilities associated with hole formation and fastener installation in the structure. Furthermore, the end effector has a continuity tester configured to determine the existence of an uninterrupted electrical path between a fastener and the structure after installation of the fastener.