JP2008218251A - Connector, detection device, and measurement system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of achieving measurement using a measurement device without having operating power supplied to a detection part. <P>SOLUTION: This connector is provided with a main connector 41 on which a signal output terminal 61 structured to be connectable to an input terminal of the measurement device inputting a detection signal output from the detection part, and a power input terminal 62 structured to be connectable to a power output terminal of the measurement device outputting operating power to the detection part are arranged; and a sub-connector 42 structured to be attachable to and detachably from the main connector 41, and structured to be capable of supplying operating power of the detection part from an external device other than the measurement device to the detection part through the main connector 41 instead of the supply of the operating power from the measurement device in an attached state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention has a first terminal that can be connected to an input terminal for detection signal input of a measurement device, and a second terminal that can be connected to a power supply output terminal of the measurement device for outputting an operating power supply to the detection unit. It relates to connectors.

As a measuring device for measuring a predetermined physical quantity based on a detection signal from a detection unit that operates by supplying an operating power supply, a carrier waveform three-wire strain measurement system (hereinafter simply referred to as JP-A-2005-147801) is disclosed. Also known as “measuring system”). This measurement system includes a bridge circuit as a detection unit constituted by a strain gauge and a bridge box, and a measurement device (measurement device). In this measurement system, the operating power supply (AC power supply voltage) generated by the power supply unit of the measurement apparatus is supplied to the bridge circuit via the power supply line connected to the connection terminal for power supply in the measurement apparatus. In addition, a detection signal (signal voltage) output from the bridge circuit by supplying the operation power is input to the measurement device via a signal line connected to a signal input connection terminal in the measurement device, and the measurement device A strain measurement process is executed based on the detection signal. In this case, in this type of measurement system using a detection unit that needs to be supplied with a power supply for operation, generally, a dedicated device-side connector in which each connection terminal is arranged and attached to the measurement device, a signal line, and a power supply A configuration is adopted in which a signal line, a power supply line, and each connection terminal are connected by connecting a dedicated detection unit side connector connected to the tip of the supply line.
Japanese Patent Laying-Open No. 2005-147801 (pages 5, 6 and 1)

  However, the connectors generally used in the above measurement system and this type of measurement system have the following problems. That is, in this measurement system, a dedicated connector for supplying an operation power supply and inputting a detection signal is used. On the other hand, there is a case where the detection unit of this type of measurement system is connected to another measurement device to measure the physical quantity and to analyze the measurement value from another viewpoint. However, when the above-described dedicated connector or the power supply unit that generates the operating power supply is not provided in another measurement device, the detection unit cannot be connected to the measurement device. However, improvement of this point is desired.

  In this case, using a relay device having a power supply unit for generating an operating power supply and the above-described dedicated connector, the connector of the detection unit is connected to the connector of the relay device, and the relay device and the measuring device are connected to a coaxial cable or the like. A method of connecting with is also conceivable. However, in this method, since the detection signal passes through the relay device, the measurement result may be inaccurate due to the influence of noise generated in the relay device. In addition, in this method, in addition to the cable attached to the detection unit, a coaxial cable or the like for connection to the measurement device is used, so it is necessary to add functions for impedance matching and transmission loss suppression to the relay device. The relay device is complicated and expensive. Therefore, it is difficult to adopt this method.

  The present invention has been made in view of such problems, and a connector that can realize measurement using a measuring device or the like that does not include an operation power supply that supplies the detection unit, a detection device including the connector, And it aims at providing the measurement system provided with this detection apparatus.

  In order to achieve the above object, the connector according to claim 1 is provided with a first terminal configured to be connectable to an input terminal of a measuring apparatus for inputting a detection signal output from the detection unit, and an operating power source for the detection unit. A connector having a main connector provided with a second terminal configured to be connectable to a power output terminal of the measuring apparatus for outputting, and configured to be detachable from the main connector and mounted In the state, instead of supplying the operating power from the measuring device, the operating power for the detecting unit from an external device other than the measuring device can be supplied to the detecting unit via the main connector. A sub-connector is provided.

  The connector according to claim 2 is the connector according to claim 1, wherein the main connector is connected to the first main body portion in which the first terminal and the third terminal are disposed, and the first main body portion. The power supply for operation from the measuring device connected to the third terminal and input via the second terminal in a state of being configured to be detachable and attached to the second terminal and the first main body. And a second main body portion provided with a fourth terminal to be transferred to the third terminal, and the sub-connector is attached to the mounting portion of the second main body portion in the first main body portion. A fifth terminal configured to be attachable to the first main body and connected to the third terminal to deliver the operating power from the external device to the third terminal. It is configured with.

  The connector according to claim 3 is the connector according to claim 2, wherein each of the first main body portion and the sub-connector has a substantially distal end surface in a state where the sub-connector is attached to the first main body portion. Each is formed to be flush with each other.

  Furthermore, the connector according to claim 4 is the connector according to claim 1, wherein the main connector is configured such that the first terminal and the second terminal are disposed on a front end surface thereof, and the sub-connector includes the front end A sixth terminal configured to be attachable to the surface side, and configured to be connectable to the first terminal in the mounted state and connectable to the input terminal of the measuring device; And a seventh terminal configured to be connectable to the second terminal in the mounted state and delivering the operating power supply from the external device to the second terminal.

  The connector according to claim 5 is the connector according to any one of claims 1 to 4, wherein the first terminal is a coaxial cable connection terminal.

  A detection device according to a sixth aspect includes the connector according to any one of the first to fifth aspects, a cable having one end connected to the connector, and the detection unit. It is connected to the other end of the cable and operates with the operating power source input via the connector and the cable and outputs the detection signal.

  A measurement system according to a seventh aspect includes the detection device according to the sixth aspect, the measurement device, and the external device, and the measurement device outputs the detection signal output from the detection unit of the detection device. An input terminal for inputting, a power output terminal for outputting an operating power source to the detection unit, and a power source unit for outputting the operating power source are configured, and a predetermined physical quantity is measured based on the detection signal. The external device includes a power supply device that outputs the operating power supply.

  According to the connector of the first aspect, the sub-connector is configured to be detachable from the main connector, and can be supplied with operating power from an external device in place of supplying operating power from the measuring device. By providing the connector, the sub-connector can be used to supply power for operation from the external device to the detection unit. Therefore, according to this connector, it is possible to realize measurement by a measuring device that does not include a power supply unit for generating an operating power supply and a detection unit without using a relay device having a special function.

  According to the connector of the second aspect of the present invention, the first main body and the second main body configured to be detachable from the first main body and delivering the operating power from the measuring device to the first main body. The main connector is configured with the unit, and the sub-connector is configured so that it can be attached to the first main body instead of the second main body and the power supply for operation from the external device can be transferred to the first main body. Thus, switching between the operation power source from the measuring device supplied to the detection unit and the operation power source from the external device can be performed only by replacing the second main body unit and the sub connector. Therefore, according to this connector, it is possible to quickly switch and execute the measurement using the measuring device including the power supply unit for generating the operating power supply and the measurement using the measuring device not including the power supply unit. .

  According to the third aspect of the present invention, the first main body portion and the sub-connector are formed so that the front end surfaces thereof are substantially flush with each other when the sub-connector is mounted on the first main body portion. Thus, even when measurement is performed using a measuring device in which the periphery of the portion where the input terminal is provided is formed flatly, the input terminal of the measuring device and the first terminal of the first main body are securely connected. be able to.

  According to the connector of the fourth aspect of the present invention, the sub-connector is configured to be attachable to the main connector and to be able to deliver the operation power from the external device to the main connector. The switching between the power supply for operation from the measuring device to be supplied and the power supply for operation from the external device can be performed only by attaching and detaching the sub-connector. Therefore, according to this connector, it is possible to quickly switch and execute the measurement using the measuring device including the power supply unit for generating the operating power supply and the measurement using the measuring device not including the power supply unit. .

  Furthermore, according to the connector of the fifth aspect, since the first terminal is constituted by the coaxial cable connecting terminal, the coaxial cable connecting terminal is generally provided in the measuring apparatus. As a result of being able to connect the detection unit to a large number of types of measurement devices, it is possible to realize measurement by each of these measurement devices and detection units.

  Moreover, according to the detection apparatus of Claim 6, by providing the connector in any one of Claim 1 to 5, the effect similar to the effect which said each connector has is realizable.

  Further, according to the measurement system of the seventh aspect, by providing the detection device according to the sixth aspect, it is possible to realize the same effect as that of each of the connectors and the detection device.

  Hereinafter, the best mode of a connector, a detection device, and a measurement system according to the present invention will be described with reference to the drawings.

  First, the configuration of the measurement system 1 will be described with reference to the drawings. A measurement system 1 shown in FIG. 1 is an example of a measurement system according to the present invention, and includes a measurement device 2, a power supply device 3, and a detection device 4. As shown in FIG. 2, the measurement device 2 includes a measurement unit 11 and a power supply unit 12. The measurement unit 11 measures a predetermined physical quantity (for example, current) of the measurement object based on the detection signal Sd output from the detection device 4. The power supply unit 12 generates an operation power supply Vd1 to be supplied to the detection device 4.

  Moreover, as shown in FIG. 5, the connection part 13 in which the connector 32 of the detection apparatus 4 mentioned later is inserted in the front panel of the measuring apparatus 2 is provided. In addition, a signal input terminal 21 and a power supply output terminal 22 are disposed in the connection portion 13. In this case, the signal input terminal 21 is a terminal for inputting the detection signal Sd output from the detection device 4, and is a female BNC terminal (this invention) generally provided in this type of measurement device. An example of a coaxial cable connection terminal in FIG. The power supply output terminal 22 is a terminal for outputting the operating power supply Vd1 generated by the power supply unit 12 to the detection device 4, and is dedicated to the measuring device 2 that can be connected to a power supply input terminal 62 of the connector 32 described later. It is composed of female terminals.

  The power supply device 3 corresponds to an external device in the present invention, and an operation power supply Vd2 equivalent to the operation power supply Vd1 described above (hereinafter also referred to as “operation power supply Vd” when the operation power supplies Vd1 and Vd2 are not distinguished). Generate. Further, as shown in FIG. 1, the front panel of the power supply device 3 is configured to be connectable to a terminal 42b attached to a cable 42a connected to a sub connector 42 in the detection device 4 described later, and operates. A terminal 3a for outputting the power supply Vd2 is provided.

  The detection device 4 is an example of a detection device according to the present invention, and includes a sensor 31, a connector 32, and a cable 33 as shown in FIGS. The sensor 31 corresponds to a detection unit in the present invention, operates by supplying the operating power supply Vd, detects a predetermined physical quantity of the measurement object, and outputs a detection signal Sd. The connector 32 is an example of a connector according to the present invention, and includes a main connector 41 and a sub connector 42 as shown in FIG. The main connector 41 includes a first main body portion 51 and a second main body portion 52.

  As shown in FIG. 3, the first main body 51 has a notch 51a on which the second main body 52 is mounted on the distal end side (left side in the figure), as well as a signal output terminal 61 and a connection terminal. 63. In this case, the signal output terminal 61 corresponds to the first terminal in the present invention and is a male BNC terminal that can be connected to the signal input terminal 21 of the measuring device 2, and is arranged on the distal end surface 51 f of the first main body 51. It is installed. The connection terminal 63 corresponds to a third terminal in the present invention, and is a connection terminal to which an operating power supply Vd1 input via a power input terminal 62 of the second main body 52 described later is passed. The main body 51 is disposed at a site where the notch 51a is formed.

  The second main body 52 is configured to be detachable from a portion where the cutout 51 a is formed in the first main body 51, and includes a power input terminal 62 and a connection terminal 64. In this case, the power input terminal 62 corresponds to the second terminal in the present invention, and is a male terminal that can be connected to the power output terminal 22 of the measuring apparatus 2, and is disposed on the distal end surface 52 f of the second main body 52. Has been. The connection terminal 64 corresponds to the fourth terminal in the present invention, and is configured to be connectable to the connection terminal 63 of the first main body 51. In this case, the operating power supply Vd1 from the measuring apparatus 2 input through the power input terminal 62 is transferred to the connection terminal 63 through the connection terminal 64.

  The sub-connector 42 is an example of a sub-connector according to the present invention, and is formed in the same shape as the second main body 52 as shown in FIG. It is comprised so that attachment or detachment is possible. That is, the sub-connector 42 is configured to be attachable to the first main body 51 instead of the second main body 52. The sub-connector 42 includes a connection terminal 65 (corresponding to a fifth terminal in the present invention) configured to be connectable to the connection terminal 63 of the first main body 51. The sub-connector 42 is connected to the end of a cable 42a that delivers the operating power supply Vd2 from the power supply device 3. In this case, the operating power supply Vd2 from the power supply device 3 is transferred to the connection terminal 63 via the cable 42a and the connection terminal 65. Further, the sub-connector 42 has a front end surface 42f (the left side surface in the figure) formed flat and the front end surface 51f of the first main body 51 and the front end surface in a state where the sub connector 42 is attached to the first main body 51 It is configured to be flush with 42f (see FIG. 6).

  One end of the cable 33 is connected to the connector 32 and the other end is connected to the sensor 31 to transfer the operating power supply Vd and the detection signal Sd.

  Next, a method for measuring a predetermined physical quantity of a measurement object using the measurement system 1 will be described with reference to the drawings.

  First, as shown in FIG. 4, the second main body portion 52 is attached to the site where the cutout portion 51 a of the first main body portion 51 of the connector 32 is formed. At this time, the connection terminal 63 of the first main body 51 and the connection terminal 64 of the second main body 52 are connected to each other. Next, the distal end portion of the connector 32 in this state is inserted into the connection portion 13 of the measuring apparatus 2 (see FIG. 5). At this time, the power output terminal 22 of the measuring device 2 and the power input terminal 62 of the connector 32 are connected to each other, and the signal input terminal 21 of the measuring device 2 and the signal output terminal 61 of the connector 32 are connected to each other. .

  Subsequently, the measurement device 2 is operated to start measurement. At this time, the operating power supply Vd1 generated by the power supply unit 12 is supplied to the sensor 31 via the power supply output terminal 22, the power supply input terminal 62, the connection terminal 64, the connection terminal 63, and the cable 33, as shown in FIG. Supplied. In addition, the sensor 31 detects a predetermined physical quantity of the measurement object and supplies a detection signal Sd by supplying the operating power supply Vd1. Next, the measurement unit 11 of the measurement apparatus 2 measures a predetermined physical quantity for the measurement object based on the detection signal Sd input via the cable 33, the signal output terminal 61, and the signal input terminal 21.

  Here, in the measurement system 1, by using the sub-connector 42, the operation power supply Vd 2 generated by the power supply device 3 is used as the sensor 31 instead of the operation power supply Vd 1 generated by the power supply unit 12 of the measurement device 2. It is possible to supply. For this reason, a measuring device that does not include the power supply unit 12 and the power output terminal 22 (for example, the measuring device 102 that is partially shown in FIG. 7) or the shape of the power output terminal of the power output terminal 22 of the measuring device 2 is used. It is possible to measure the above-described predetermined physical quantity using a measuring device having a different shape (that is, a measuring device that cannot connect the power input terminal 62 of the connector 32 and its power output terminal). In the following description, the same constituent elements as those of the measuring apparatus 2 among the constituent elements included in the measuring apparatus 102 are denoted by the same reference numerals and redundant description is omitted.

  When measuring the predetermined physical quantity using the measuring device 102, first, the terminal 42b attached to the cable 42a is connected to the terminal 3a of the power supply device 3. Subsequently, as shown in FIG. 3, the second main body portion 52 is removed from the first main body portion 51, and then, as shown in FIG. 6, the sub-connector is formed on the formation portion of the cutout portion 51 a in the first main body portion 51. 42 is attached. At this time, the connection terminal 63 of the first main body 51 and the connection terminal 65 of the sub connector 42 are connected to each other. Subsequently, the signal output terminal 61 of the connector 32 is connected to the signal input terminal 21 of the measuring apparatus 102 (see FIG. 7). In this case, the power input terminal 62 is not provided on the front end surface 42f of the sub-connector 42, and the front end surface 42f and the front end surface 51f of the first main body 51 are substantially flush with each other. Therefore, even if the periphery of the portion where the signal input terminal 21 is provided on the front panel of the measuring apparatus 102 is formed flat, the signal output terminal 61 and the signal input terminal do not interfere with the front panel and the sub-connector 42. 21 is securely connected.

  Next, the power supply device 3 is operated to start generation of the operation power supply Vd2, and the measurement device 102 is operated to start measurement. At this time, the operating power supply Vd2 output from the power supply device 3 and input via the cable 42 a is supplied to the sensor 31 via the connection terminals 64 and 56 and the cable 33. Further, the sensor 31 detects a predetermined amount of the object to be measured by supplying the operating power supply Vd2, and generates a detection signal Sd. Subsequently, the measurement unit 11 of the measurement apparatus 102 measures a predetermined physical quantity of the measurement object based on the detection signal Sd input via the signal input terminal 21.

  Thus, according to the connector 32, the detection device 4, and the measurement system 1, the power supply Vd1 for operation from the measurement device 2 is configured to be detachable from the main connector 41 and attached to the main connector 41. The sub-connector 42 capable of supplying the operation power Vd2 from the power supply device 3 is provided instead of the supply of the power supply, and the operation power supply Vd2 from the power supply device 3 is supplied to the sensor 31 by using the subconnector 42. can do. Therefore, according to the connector 32, the detection device 4, and the measurement system 1, the power supply unit 12 for generating the operation power supply Vd1 and the connection unit 13 dedicated to the connector 32 are provided without using a relay device having a special function. Measurement of physical quantities by the measuring device 102 and the sensor 31 that are not present can be realized.

  Moreover, according to this connector 32, the detection apparatus 4, and the measurement system 1, it is comprised so that attachment or detachment with respect to the 1st main-body part 51 and the 1st main-body part 51 and the operating power supply Vd1 from the measurement apparatus 2 is carried out. The main connector 41 is constituted by the second main body portion 52 delivered to the first main body portion 51, and is configured to be attachable to the first main body portion 51 instead of the second main body portion 52, and the power supply for operation from the power supply device 3 By configuring the sub-connector 42 so that Vd2 can be delivered to the first main body 51, switching between the operating power supply Vd1 from the measuring device 2 supplied to the sensor 31 and the operating power supply Vd2 from the power supply device 3 is performed. The second main body 52 and the sub-connector 42 can be simply replaced. Therefore, according to the connector 32, the detection device 4, and the measurement system 1, the measurement using the measurement device 2 and the measurement using the measurement device 102 can be quickly switched and executed.

  Further, according to the connector 32, the detection device 4, and the measurement system 1, when the sub connector 42 is attached to the first main body 51, the first end surfaces 51f and 42a are substantially flush with each other. By forming the main body 51 and the sub-connector 42, even if the periphery of the area where the signal input terminal 21 is provided on the front panel of the measuring apparatus 102 is formed flat, the interference between the front panel and the sub-connector 42 is achieved. Therefore, the signal output terminal 61 and the signal input terminal 21 can be reliably connected.

  Furthermore, according to the connector 32, the detection device 4, and the measurement system 1, the signal output terminal 61 is configured by a BNC terminal as a coaxial cable connection terminal, so that the BNC terminal is generally provided in the measurement device. Therefore, as a result of being able to connect the sensor 31 to many types of measuring devices using the connector 32, measurement by these measuring devices and the sensor 31 can be realized.

  Next, the measuring device 202 (see FIG. 9) provided with the connecting portion 213 to which the connector 132 shown in FIG. 8 can be connected, the power supply device 3 described above, and the detecting device 104 (see FIG. 9) provided with the connector 132. A measurement system 101 (see FIG. 1) configured by the above will be described. In addition, in the following description, about the same component as said measurement system 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted. The connector 132 is another example of a connector according to the present invention, and includes a main connector 141 and a sub-connector 142 as shown in FIG.

  The main connector 141 includes the signal output terminal 61 and power input terminals 157a and 157b (hereinafter also referred to as “power input terminal 157” when not distinguished). The power input terminal 157 corresponds to the second terminal in the present invention, and can be connected to the power output terminals 222a and 222b (hereinafter also referred to as “power output terminal 222” when not distinguished) of the measuring apparatus 202 shown in FIG. It consists of male terminals. In this case, the signal output terminal 61 and the power input terminal 157 are disposed on the front end surface 141 f of the main connector 141.

  The sub-connector 142 is another example of the sub-connector in the present invention. As shown in FIG. 8, the sub-connector 142 is configured to be detachable from the front end surface 141f side of the main connector 141, and has an extension terminal 161 and a connection terminal 162a. , 162b (hereinafter also referred to as “connection terminal 162” when not distinguished). Further, the end of the cable 42 a is connected to the sub-connector 142. The extension terminal 161 corresponds to the sixth terminal in the present invention, and the base end of the extension terminal 161 can be connected to the signal output terminal 61 of the main connector 141 in a state where the sub connector 142 is attached to the main connector 141, and the measuring device 202. The signal input terminal 21 can be connected at its tip.

  The connection terminals 162a and 162b correspond to the seventh terminal in the present invention, and are configured to be connectable to the power input terminals 157a and 157b of the main connector 141, respectively. In this case, the operating power supply Vd2 from the power supply device 3 is delivered to the power supply input terminal 157 via the cable 42a and the connection terminal 162. In addition, the sub-connector 142 has a flat portion except for the portion where the extension terminal 161 is disposed on the front end surface 142f.

  When measuring a predetermined physical quantity of the measurement object using the measurement system 101, first, the tip end of the connector 132 is inserted into the connection part 213 of the measurement apparatus 202 (see FIG. 9). At this time, the power output terminal 222 of the measuring device 202 and the power input terminal 157 of the connector 132 are connected to each other, and the signal input terminal 21 of the measuring device 202 and the signal output terminal 61 of the connector 132 are connected to each other. .

  Subsequently, the measurement device 202 is operated to start measurement. At this time, the operating power supply Vd1 generated by the power supply unit 12 of the measuring apparatus 202 is supplied to the sensor 31 via the power supply output terminal 222, the power supply input terminal 157, and the cable 33, and the sensor 31 outputs the detection signal Sd. . Next, the measurement unit 11 of the measurement apparatus 202 measures a predetermined physical quantity of the measurement object based on the detection signal Sd input via the cable 33, the signal output terminal 61, and the signal input terminal 21.

  On the other hand, a measuring device (for example, the measuring device 102 described above) that does not include the connection unit 213 in place of the measuring device 202, or a measuring device that has a different shape from the power output terminal 222 of the measuring device 202 (see FIG. For example, when measuring a predetermined physical quantity of a measurement object using the measuring device 2), first, the sub-connector 142 is attached to the tip of the main connector 141 of the connector 132 as shown in FIG. At this time, the signal output terminal 61 of the main connector 141 and the base end portion of the extension terminal 161 in the sub connector 142 are connected to each other, and the power input terminals 157a and 157b of the main connector 141 and the connection terminal 162a of the sub connector 142 are connected. , 162b are connected to each other. Next, the tip of the extension terminal 161 in the connector 132 is connected to the signal input terminal 21 of the measuring apparatus 102. In this case, since the power input terminal 157 is not provided on the front surface of the sub-connector 142, the extension terminal 161 and the signal can be transmitted without interference between the front panel of the measuring device 202 and the sub-connector 42. The input terminal 21 is securely connected.

  Next, the power supply device 3 is operated to start generation of the operating power supply Vd2, and the measurement device 102 (or the measurement device 2) is operated to start measurement. At this time, the operating power supply Vd2 output from the power supply device 3 and input via the cable 42a and the sub-connector 142 is supplied to the sensor 31 via the connection terminal 162, the power supply input terminal 157 and the cable 33. A detection signal Sd is generated. Subsequently, the measurement unit 11 of the measurement apparatus 102 (or measurement apparatus 2) measures a predetermined physical quantity of the measurement object based on the detection signal Sd input via the signal input terminal 21.

  As described above, the connector 132, the detection device 104, and the measurement system 101 are also configured to be detachable from the main connector 141, and when the connector 132, the detection device 104, and the measurement system 101 are attached to the main connector 141, By providing the sub-connector 142 that can supply the power supply Vd2 for operation from the power supply device 3 via the main connector 141 instead of the supply of Vd1, the power supply for operation from the power supply device 3 can be obtained by using the sub-connector 142. Vd2 can be supplied to the sensor 31. Therefore, according to the connector 132, the detection device 104, and the measurement system 101, the power supply unit 12 for generating the operating power supply Vd1 and the connection unit 213 dedicated to the connector 132 are provided without using a relay device having a special function. Measurement of physical quantities by the measuring device 102 and the sensor 31 that are not present can be realized.

  The connector 132, the detection device 104, and the measurement system 101 also include a main connector 141 provided with a signal output terminal 61 and a power input terminal 157, and are configured to be attachable to the main connector 141 and have a power source. By configuring the sub-connector 142 so that the operating power source Vd2 from the device 3 can be transferred to the main connector 141, the operating power source Vd1 from the measuring device 2 supplied to the sensor 31 and the operating power source from the power source device 3 Switching to Vd2 can be performed only by attaching / detaching the sub-connector 142. Therefore, according to the connector 132, the detection device 104, and the measurement system 101, the measurement using the measurement device 2 and the measurement using the measurement device 102 can be quickly switched and executed.

  In addition, this invention is not limited to said structure. For example, although the example in which the signal input terminal 21 and the signal output terminal 61 are configured by the BNC terminal as a coaxial cable connection terminal is described above, other coaxial cable connection terminals such as an N type, an M type, and an SMB type are used. You can also. Moreover, it is not limited to the terminal for coaxial cable connection, The terminal with which the general measuring apparatus is equipped can also be used as a signal input terminal and a signal output terminal. In addition, the example in which the present invention is applied to the connectors 32 and 132 connected to the sensor 31 that detects current as a predetermined physical quantity has been described above. However, the present invention can be applied to any sensor that detects other physical quantities such as voltage. Of course.

1 is a configuration diagram showing a configuration of a measurement system 1. FIG. 1 is a configuration diagram illustrating a configuration of a signal path of a measurement system 1. FIG. 3 is a perspective view showing a configuration of a connector 32. FIG. FIG. 6 is a perspective view of the connector 32 in a state where the second main body portion 52 is attached to the first main body portion 51. 4 is a perspective view of a connection unit 13 and a connector 32 of the measuring device 2. FIG. 4 is a perspective view of the connector 32 in a state where the sub-connector 42 is mounted on the first main body 51 of the main connector 41. FIG. 4 is a perspective view of a signal input terminal 21 and a connector 32 of the measuring apparatus 102. FIG. 4 is a perspective view showing a configuration of a connector 132. FIG. 4 is a perspective view of a connection unit 213 and a connector 132 of the measurement device 202. FIG. 4 is a perspective view of a connector 132 in a state where a sub connector 142 is attached to a main connector 141. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Measuring system 2,102,202 Measuring device 3 Power supply device 4,104 Detection device 21 Signal input terminal 22 Power supply output terminal 31 Sensor 32,132 Connector 33 Cable 41,141 Main connector 42,142 Sub connector 42f, 51f, 141f, 142f Front end surface 51 First body portion 51a Notch portion 52 Second body portion 61 Signal output terminal 62, 157a, 157b Power input terminal 63, 64, 65, 162a, 162b Connection terminal 161 Extension terminal Sd Detection signal Vd1, Power supply for Vd2 operation

Claims (7)

A first terminal configured to be connectable to an input terminal of a measurement device that inputs a detection signal output from the detection unit, and a configuration connectable to a power supply output terminal of the measurement device that outputs an operation power supply to the detection unit A connector having a main connector provided with a second terminal,
In addition to being configured to be attachable to and detachable from the main connector, the power supply for operating the detection unit from an external device other than the measurement device is used instead of the supply of the power supply for operation from the measurement device. A connector including a sub-connector configured to be supplied to the detection unit via a main connector. The main connector is configured to be attachable to and detachable from the first main body portion in which the first terminal and the third terminal are disposed, and to the second terminal and the first main body portion. A second main body provided with a fourth terminal that is connected to the third terminal in the mounted state and delivers the operating power supply from the measuring device input through the second terminal to the third terminal. And comprising
The sub-connector is configured to be attachable to the attachment portion of the second main body portion in the first main body portion instead of the second main body portion, and in the state of being attached to the first main body portion, the third terminal The connector according to claim 1, further comprising a fifth terminal connected to the third terminal and delivering the operating power from the external device to the third terminal.   3. The connector according to claim 2, wherein the first main body portion and the sub-connector are formed so that respective front end surfaces are substantially flush with each other in a state in which the sub-connector is mounted on the first main body portion. The main connector is configured such that the first terminal and the second terminal are disposed on a front end surface thereof,
The sub-connector is configured to be attachable to the distal end surface side, and in a mounted state, the base end can be connected to the first terminal, and the distal end can be connected to the input terminal of the measuring device. A sixth terminal configured, and a seventh terminal configured to be connectable to the second terminal in the mounted state and delivering the operating power supply from the external device to the second terminal. The connector according to 1.   The connector according to claim 1, wherein the first terminal is a coaxial cable connection terminal.   A connector according to any one of claims 1 to 5, a cable having one end connected to the connector, and the detection unit, wherein the detection unit is connected to the other end of the cable. A detection device that operates with the power supply for operation input through the connector and the cable and outputs the detection signal.   The detection device according to claim 6, the measurement device, and the external device, wherein the measurement device has an input terminal for inputting the detection signal output from the detection unit of the detection device, and the detection unit A power supply output terminal for outputting an operation power supply and a power supply unit for outputting the operation power supply are configured and a predetermined physical quantity is measured based on the detection signal, and the external device is used for the operation A measurement system consisting of a power supply that outputs power.

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