JP2005293567A - Measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measurement device capable of outputting a measurement value of a measurement object to an external control device together with information on a time when the measurement value is obtained.
A measurement apparatus includes a measurement value acquisition unit that acquires measurement values at a predetermined cycle, and a measurement timing acquisition unit that acquires information about measurement timing. The information about measurement timing is a measurement start timing. To the measurement values acquired at a predetermined cycle, the elapsed time information calculated based on the predetermined measurement cycle is added in correspondence with the measurement start timing as a reference, and a plurality of measurement values to which the measurement timing information is added are added together. Output digitally. Further, an identification number of the measurement device included in the measurement device is further added to the measurement value.
[Selection] Figure 2

Description

  The present invention relates to a measuring device connected to an external control device such as a PC.

  For example, a measurement system in which a measurement device such as a displacement sensor, a temperature sensor, or a visual sensor is connected to an external control device that controls the measurement device, and the external control device makes a determination based on a measurement result of the measurement device. Is known (see, for example, Patent Document 1).

This type of measurement device outputs measurement values to a control device continuously in real time, and reception of the measurement values is left to the control device. When the measurement object moves, time information indicating when the measurement device acquires the measurement value is important. The control device determines this time information using an external synchronization signal or the like. For example, when a workpiece moving on a line flows to a predetermined position, a synchronization sensor that detects this is turned on, and in synchronization with this on-input, the control device acquires a measured value from the measuring device. Yes.
2001-141524 gazette

  However, when the control device is a general-purpose machine such as a PC (Personal Computer) or PLC (Programmable Logic Controller), a connection terminal of a sensor for synchronization may not be provided, and a digital signal such as USB is output to the output of the measuring device. When the serial output is used, since the measurement value is not continuously output in real time, it is difficult for the PC to acquire the measurement value together with the time information in real time and at regular intervals. Therefore, it is impossible to take the correspondence between the measurement value and the synchronization timing, assuming that the output of the synchronization sensor is obtained on the PC side.

  The present invention has been made by paying attention to such conventional problems, and the object of the present invention is to provide an external control device with the measurement value of the measurement object together with information on the time when the measurement value was obtained. An object of the present invention is to provide a measurement device that can output to

  Other objects and operational effects of the present invention will be easily understood by those skilled in the art by referring to the following description of the specification.

  The measurement apparatus of the present invention stores a measurement value acquisition unit that acquires measurement values, a trigger signal input unit that receives an external trigger signal, a processing unit that processes the acquired measurement values, and processing condition data A measurement device having a data storage unit that performs processing and an interface unit that outputs the processed measurement value, wherein the measurement value acquisition unit periodically acquires the measurement value, and the data storage unit stores data as processing conditions Stores information that defines the maximum number of data when a plurality of processed measurement values are output in a batch, and the processing unit uses the timing when the trigger signal is input as a periodically acquired measurement value Information related to measurement timing is added, and a plurality of measurement values to which the measurement timing information is added are divided into a plurality of measurement values that are equal to or less than the maximum number of data in the acquired order, and the plurality of divided values After executing the first digital output in which the measured values are digitally output from the interface unit in a time shorter than the time determined by the product of the number of data and the period, the maximum number of data after the previous digital output The number of data is equal to or less than the maximum number of data while maintaining the order of acquiring a plurality of measurement values to which information related to the next measurement timing following the output measurement value is added within a time determined by the product of the period and the cycle. Dividing into a plurality of measurement values, executing the second digital output that is digitally output from the interface unit in a time shorter than the time determined by the product of the divided number of data and the period, and then executing the second digital output Repeat output.

  In the embodiment of the present invention, the maximum number of data when a plurality of processed measurement values are collectively output may be set in advance or may be input via the interface unit. good.

  In the embodiment of the present invention, adding information related to the measurement timing based on the timing at which the trigger signal is input includes adding an identification mark that can be distinguished from the other only when the trigger signal is input, When you continue to add an identification mark that can be distinguished from others from the time when the trigger signal is input, characters (for example, alphabets) and numbers that can be distinguished from the sequence when the trigger signal is input This includes the case where signs such as symbols are added in order. This includes the case where information related to measurement timing is always added to the measurement value, the case where the measurement value is started by trigger signal input, and the case where the measurement value is started by trigger signal input and then stopped by another trigger input.

  According to such a configuration, the measurement values acquired at a predetermined cycle are output in batches for each divided unit, but information on measurement timing based on the timing at which the trigger signal is input is acquired. The order in which the measurement values are acquired by keeping corresponding times is maintained. Therefore, a control device such as a PC can obtain a continuous measurement value associated with the timing at which the trigger signal is input without omission even by an output signal form that performs digital output all at once, such as USB communication. In addition, because the measured values are output in batches within a predetermined period, there is no problem even if there is a large gap between the measurement speed of the measuring device and the processing speed of the control device such as the PC on the output side. The processing load on the control device can be reduced.

  In addition, for each of a plurality of divided measurement values, digital output from the interface unit in a time shorter than the time determined by the product of the number of data and the measurement value acquisition cycle is a digital signal such as USB. The serial transmission method means a method of transmitting a plurality of data at a time at a high speed, instead of sending data in a flow-down manner by a communication method generally used. By transmitting every time that does not exceed the time determined by the above product, all measurement values can be output within a certain time range without accumulating unmeasured measurement values for the measurement values that are continuously acquired. it can.

  In addition, after the digital output that was performed before the second digital output, within the time determined by the product of the maximum number of data and the period, the next multiple measured values following the output measurement value are batched. Because the digital data is output from the interface unit, the control device side such as a PC does not exceed a certain value because the timing of actual measurement value acquisition and the time delay until the data is received do not exceed a certain value. Can be obtained.

  In the embodiment of the present invention, a measurement value acquisition unit that acquires measurement values, a processing unit that processes the acquired measurement values, a data storage unit that stores data of processing conditions, and a processed measurement value are output. A measurement device having an interface unit, wherein a measurement value acquisition unit periodically acquires measurement values, and a data storage unit collectively outputs a plurality of measurement values processed as data of the processing conditions Information for defining the maximum number of data at the time and a timing determination threshold value to be compared with the measured value, and the processing unit periodically changes the measured value across the timing determination threshold value to the measured value Information on the measurement timing based on the timing is added, and the plurality of measurement values to which the measurement timing information is added are maintained in the order in which the plurality of measurement values are not more than the maximum number of data. After the first digital output is performed, the plurality of divided measurement values are digitally output from the interface unit in a time shorter than the time determined by the product of the number of data and the period. After the output, within the time determined by the product of the maximum number of data and the period, the maximum number is maintained while maintaining the order in which a plurality of measurement values to which information on the next measurement timing following the output measurement value is added are added. A second digital output that is divided into a plurality of measurement values that are less than or equal to the number of data and is digitally output from the interface unit in a time that is shorter than the time determined by the product of the divided number of data and the period. And then repeat the second digital output.

  In the embodiment of the present invention, the timing determination threshold value may be set in advance or may be set from the outside.

  According to such a configuration, the operation in which the measurement value changes across the measurement timing determination threshold value is generated by, for example, a self-trigger, and thereby it is possible to control the presence or absence of an operation for adding information related to the measurement timing to the measurement value. .

  In the embodiment of the present invention, the maximum data amount or the maximum output cycle may be stored as information for defining the maximum number of data when a plurality of processed measurement values are collectively output. If the maximum data amount is specified, the maximum number of data that can be tolerated is specified from the size of each data at the time of output, and if it is the maximum output cycle, the maximum number of data is calculated from the number of measurement cycles that can be included in it. Will be specified.

  In the embodiment of the present invention, the information related to the measurement timing may be a measurement start timing. According to such a configuration, a plurality of measurement values are output while maintaining the order corresponding to the measurement start timing.

  In the embodiment of the present invention, the information related to the measurement timing may be a measurement start timing and a measurement end timing. According to such a configuration, a plurality of measurement values are output while maintaining the order corresponding to the period between the measurement start timing and the measurement end timing.

  In the embodiment of the present invention, a measurement value acquisition unit that acquires measurement values at a predetermined period and a measurement timing acquisition unit that acquires information about measurement timing, the information about measurement timing is a measurement start timing, Time series information based on the measurement start timing may be added to the measurement values acquired at a predetermined cycle in association with each other, and a plurality of measurement values to which the measurement timing information is added may be digitally output collectively. . In this case, the time series information is, for example, a serial number, and a plurality of measurement values are output by serial numbers in correspondence with the measurement start timing. Therefore, a control device or the like connected to the outside of the measuring apparatus can easily know the time information at which the measurement value is acquired together with the measurement value.

  In the embodiment of the present invention, a measurement value acquisition unit that acquires measurement values at a predetermined period and a measurement timing acquisition unit that acquires information about measurement timing, the information about measurement timing is a measurement start timing, To the measurement values acquired at a predetermined cycle, the elapsed time information calculated based on the predetermined measurement cycle is added in correspondence with the measurement start timing as a reference, and a plurality of measurement values to which the measurement timing information is added are added together. And digital output. According to such a configuration, a plurality of measurement values are output together with the elapsed time information in correspondence with the measurement start timing. Furthermore, the elapsed time information can be easily obtained depending on how many measurement cycles there are. Further, in the control device connected to the outside, the elapsed time information from which the measurement value is acquired can be used as it is as real time information.

  In an embodiment of the present invention, the processing unit starts the first collective digital output when a trigger signal is input, and repeats the second collective digital output while the input of the trigger signal continues. It is good as a thing.

  In an embodiment of the present invention, when the measurement value changes across the determination timing determination threshold, the first batch digital output is started, and the measurement value is changed over the determination timing determination threshold again. In the meantime, the second batch digital output may be repeated.

  In the embodiment of the present invention, an identification number of the measurement device included in the measurement device may be further added to the measurement value. According to this, when there is an input from a plurality of measurement devices to a control device connected to the outside of the measurement device, the control device can easily determine which measurement device the received measurement value belongs to. Can be used, so it is easy to use.

  As is clear from the above description, according to the present invention, the measurement value of the measurement object can be collectively output to the control device connected to the outside together with the time information regarding the timing at which the measurement value was obtained. Therefore, it is easy for an external control device to perform highly accurate determination processing and control processing on the measurement value, and there is an advantage that the processing load on the control device can be reduced.

  In the following, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing the electrical hardware configuration of the measuring apparatus according to the present embodiment. The measurement device is configured as a displacement sensor, and in order to enable compact accommodation in a control panel or the like, and to facilitate installation in a narrow measurement environment, the sensor head unit 1 and the signal processing unit 2 And is used by being connected to a PC 3 which is an external control device.

  The sensor head unit 1 includes a light projecting element 101, a light receiving element 102, a light projecting control unit 103, a light reception control unit 104, an arithmetic processing unit 105, an internal memory 106, and a communication control unit 107. .

  The light projecting element 101 is made of, for example, an LD (laser diode), and the light receiving element 102 is made of a PD (photodiode). The light projecting control unit 103 generates a driving pulse for the light projecting element 101 and causes the light projecting element 101 to emit pulsed light toward the measurement target. The light receiving control unit 104 controls the light receiving element 102.

  The arithmetic processing unit 105 acquires the amount of received light obtained from the light receiving element 102 and calculates a feature amount. The internal memory 106 includes a maximum data number, a maximum data amount or a maximum output cycle as information for defining a measurement cycle of the measurement object, and a maximum number of data when a plurality of processed measurement values are collectively output. Information such as an ID number (recognition number) of 1 is stored. The communication control unit 107 controls communication with the signal processing unit 2.

  The sensor head unit 1 of the present embodiment has the circuit configuration as described above. In this example, the light projecting process is performed according to the command of the signal processing unit 2, and the received light signal by the light receiving process is processed at an appropriate timing. Used to perform processing to be sent to the unit 2.

  The signal processing unit 2 includes a communication control unit 201, a measurement control unit 202, an external signal detection unit 203, a SW detection unit 204, a display unit 205, an internal memory 206, a USB controller 207, and a CPU 208. ing.

  The communication control unit 201 performs communication control with the sensor head unit 1 and acquires received light data and the like from the sensor head unit 1. The measurement control unit 202 performs a process of measuring the distance to the measurement target based on the data acquired from the sensor head unit 1. The external signal detection unit 203 detects an external signal such as an external trigger, and inputs a timing for acquiring a measurement result by the measurement control unit 202 to the CPU 208.

  The SW detection unit 204 detects an input from a switch or button (not shown) provided in the signal processing unit 2. The display unit 205 includes a liquid crystal display unit that displays measurement values and setting conditions, an indicator LED that indicates an operation state, and the like. The internal memory 206 stores calculation results such as measurement values. The USB controller 207 controls USB communication for connecting to an external PC or the like.

  The CPU 208 controls the signal processing unit 2 as a whole. The CPU 208 reflects the setting of the measurement condition based on the switch state acquired from the SW detection unit 204. Further, the display unit 205 has a function of a measurement value acquisition unit, and displays the measurement value acquired from the measurement control unit 202, the measurement condition setting, and the like. The CPU 208 has a function of a measurement timing acquisition unit, detects timing for generating time information, calculates time information, and adds the calculated time information to the measurement value.

  A flowchart showing the operation of the signal processing unit 2 is shown in FIG. When the process is started by turning on the power, the signal processing unit 2 instructs the sensor head unit 1 to perform a light projection process (step 201). Thereby, the sensor head unit 1 irradiates the measurement target with pulsed light. The signal processing unit 2 acquires light reception data from the sensor head unit 1 (step 202), and calculates a measurement value (distance value) from the light reception data (step 203).

  Subsequently, timing detection for acquiring time information is performed (step 204). Here, the timing detection is performed by determining whether the external signal (measurement signal) is ON or OFF by the external signal detection unit 203, and at the measurement start timing when the external signal is turned ON. When it is determined that the external signal is turned off, it is determined that it is the measurement end timing.

  Subsequent to step 204, time information when the measured value is measured is calculated (step 205). The CPU 208 counts the number of times of measurement (count number) after the external signal is turned on, and clears the number of times of measurement when the external signal is off. The calculated time information is represented as the product of the count number and the measurement cycle acquired from the sensor head unit 1 in advance.

  Subsequent to step 205, time information is added to the measurement value (step 206), and the ID number of the sensor head unit 1 acquired in advance is added to the measurement value to which time information is added (step 207). ). Subsequently, the final result of the measurement value (measurement value to which the time information and ID number are added) is stored in the internal memory 206 (step 208). Further, the final result of the measurement value obtained within a predetermined period is transferred to the USB controller 207 (step 209). The USB controller 207 triggers a request from the PC 3 as a trigger, and collectively outputs the final results of a plurality of predetermined measured values obtained within a maximum number of data set in advance or set by the PC to the PC 3 collectively. To do. This batch digital output is performed within a time determined by the product of the maximum number of data and the measurement value acquisition cycle after the batch digital output previously performed by dividing the subsequent measurement values into a predetermined plurality (step 210). . In addition, the batch digital output is performed by outputting a predetermined plurality of data within the maximum number of data at a time at a high speed, instead of dripping at every cycle in which a plurality of measurement values are acquired. Thereby, PC3 can acquire a measured value and time information, without exceeding a fixed time lag, and can perform various determination and control processing smoothly. The received data can be sorted and used for each sensor head unit 1.

  The timing detection in step 204 is determined to be the measurement start timing when the external signal is turned on, and is determined to be the measurement end timing when the external signal is turned off. You may comprise so that it may be determined that it is a measurement start timing or a measurement end timing when a measurement value becomes more than predetermined value or below predetermined value. Further, the time information calculated in step 205 may be the count number itself. In this case, the PC 3 is provided with a function of rearranging the data received from the signal processing unit 2 along the measurement time. In addition, as time information, an identification mark may be added only to the measurement value corresponding to the measurement timing.

  FIG. 3 shows a time chart showing the flow of the time information addition process for the measurement value in the signal processing unit 2. In this example, the measurement control unit 202 of the signal processing unit 2 acquires the light reception data 1 and the light reception data 2 at the timing indicated by the reference symbol a in FIG. 3 (step 202), and at the timing indicated by the reference symbol b. Then, distance value 1 and distance value 2 are calculated as measured values (step 203).

  The CPU 208 calculates time information of the distance value 1 and time information of the distance value 2 (step 205), adds the time information to the distance value 1 at the timing indicated by the reference symbol c, and similarly, the distance value. Time information is added to 2 (step 206). Further, the CPU 208 adds the ID number of the sensor head unit 1 to the distance value 1 and the distance 2 to which the time information is added at the timing indicated by the reference symbol d (step 207). The interval (one cycle) between the light reception data 1 and the light reception data 2 is several tens of μs or more.

  FIG. 4 is an explanatory diagram showing the relationship between the timing detection and the time information addition processing for the measurement value. In this example, when the signal processing unit 2 acquires the received light data 1 to 9 and acquires the received light data 3, the external signal is turned ON (measurement start timing), and after the received light data 7 is acquired, the external signal is turned OFF ( The measurement end timing) is assumed. Here, for convenience of explanation, the received light data of 1 to 9 are shown, but it goes without saying that the number of received light data can take various numbers.

  When the signal processing unit 2 acquires the received light data 1 and 2, since the external signal is OFF, the measurement count is cleared during this period, and time information is added to the measurement values (distance value 1, distance value 2). Not. On the other hand, when the signal processing unit 2 acquires the received light data 3 to 7, since the external signal is ON, the elapsed time information (0 ms to 40 ms) is added to the measurement value (distance value 3 to distance value 7). Further, when the signal processing unit 2 acquires the received light data 8 and 9, since the external signal is OFF, the number of measurements is cleared during this period, and time information is included in the measurement values (distance value 8, distance value 9). Not added.

  Note that the detection operation during the period in which time information is added (measurement start timing to measurement end timing) is based on ON / OFF of an external signal, for example, by self-triggering at a timing that changes across a predetermined measurement timing determination threshold. It may be determined.

  As shown in FIG. 5, the data structure of data output from the signal processing unit 2 to the PC 3 includes measurement values (distance values), time information, and sensor head unit ID numbers. The time information represents the time when the measurement value is acquired. Thereby, it is possible to know when the measurement value is measured. The sensor head part ID number is an ID number indicating which sensor head part the received data is from. Thereby, when there are inputs from a plurality of signal processing units (measuring devices) to the PC 3, the PC 3 can determine the received measurement value.

  As shown in FIG. 6, the memory structure of the internal memory 106 of the sensor head unit 1 includes a sensor head unit ID number and an actual measurement time (measurement cycle) per cycle. The signal processing unit 2 acquires a measurement cycle and a sensor head unit ID number from the sensor head unit 1 at the time of activation, and uses the acquired measurement cycle for calculating time information. In addition, if the measurement cycle is transmitted from the signal processing unit 2 to the PC 3, when there is an input from a plurality of signal processing units (measurement devices) to the PC 3, even if the measurement cycle differs depending on the measurement device, the PC 3 can handle It will be possible. In addition to this, information unique to the sensor head unit 1 is also stored in the internal memory 106 of the sensor head unit 1.

  An explanatory view showing an application example of the measuring apparatus of the present invention is shown in FIG. In this example, control of the nozzle 803 for applying the liquid crystal sealant 802 to the workpiece 801 is shown. The nozzle 803 is configured integrally with the sensor head unit 1. The signal processing unit 2 is USB connected to the PC 3. The sensor head unit 1 measures unevenness on the surface of the workpiece 801. The PC 3 controls the nozzle 803 to move up and down using the measurement value data measured by the sensor head unit 1 and received from the signal processing unit 2. The signal processing unit 2 accumulates the data acquired by the sensor head unit 1 for a predetermined period, and outputs the data to the PC 3 collectively at intervals. When the PC 3 acquires data measured at high speed by the sensor head unit 1, the PC 3 can perform various analyses, and can realize nozzle control based on highly accurate prediction.

  FIG. 8 shows an operation explanatory diagram of the measuring apparatus of the present invention. In this example, for a series of nine measurement values (12345, 12334, 12342, 12341, 12115, 12113, 12122, 12108, and 12105), the third measurement value (12342) is set with the start trigger as the measurement start timing. Measurement timing information is added. An end trigger is set as a measurement end timing for the eighth measurement value (12108). The time information from the third measurement value (12342) to the seventh measurement value (12112) is a serial number (time-series information) as shown in the figure. When the PC 3 that receives the data has a function of rearranging the data received from the signal processing unit 2 according to the measurement time, the measurement cycle (in this example) is transmitted to the PC by USB communication (digital communication). If the period is also 2 ms), the PC can rearrange the received data in real time.

  In the above embodiment, the measurement device has been described as a displacement sensor. However, the measurement device of the present invention is not limited to this, and may be configured as a temperature sensor or a visual sensor.

It is a block diagram which shows the electrical hardware constitutions of a measuring device. It is a flowchart which shows operation | movement of a signal processing part. It is a time chart which shows the flow of the process in a signal processing part. It is explanatory drawing which shows the time information addition process with respect to a measured value. It is explanatory drawing which shows the data structure of the data output from a signal processing part. It is explanatory drawing which shows the memory structure of a sensor head part. It is explanatory drawing which shows the application example of this invention measuring device. It is operation | movement explanatory drawing of this invention measuring device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sensor head part 2 Signal processing part 3 PC
101 Light Emitting Element 102 Light Receiving Element 103 Light Emitting Control Unit 104 Light Receiving Control Unit 105 Arithmetic Processing Unit 106 Internal Memory 107 Communication Control Unit
201 Communication Control Unit 202 Measurement Control Unit 203 External Signal Detection Unit 204 SW Detection Unit 205 Display Unit 206 Internal Memory 207 USB Controller 208 CPU
801 Workpiece 802 Liquid crystal sealant 803 Nozzle

Claims (10)

A measurement value acquisition unit that acquires measurement values, a trigger signal input unit that receives an external trigger signal, a processing unit that processes the acquired measurement values, a data storage unit that stores processing condition data, and a process A measuring device having an interface unit for outputting the measured value,
The measurement value acquisition unit periodically acquires measurement values,
The data storage unit stores information defining the maximum number of data when a plurality of measurement values processed as processing condition data are collectively output,
The processing unit adds information related to the measurement timing based on the timing at which the trigger signal is input to the periodically acquired measurement value,
The plurality of measurement values to which the measurement timing information is added are divided into a plurality of measurement values that are equal to or less than the maximum number of data in the acquired order, and the plurality of divided measurement values are divided into the number of data and the period After executing the first digital output that is digitally output from the interface unit in a time shorter than the time determined by the product of
After the previous digital output, within the time determined by the product of the maximum number of data and the period, the order in which a plurality of measurement values to which information related to the next measurement timing following the output measurement value is added is acquired is maintained. The second data is divided into a plurality of measurement values that are equal to or less than the maximum number of data, and is digitally output from the interface unit in a time shorter than the time determined by the product of the divided number of data and the period. Perform digital output,
Thereafter, the second digital output is repeated. A measurement device having a measurement value acquisition unit that acquires measurement values, a processing unit that processes the acquired measurement values, a data storage unit that stores data of processing conditions, and an interface unit that outputs the processed measurement values There,
The measurement value acquisition unit periodically acquires measurement values,
The data storage unit stores information defining a maximum number of data when collectively outputting a plurality of measurement values processed as data of the processing condition, and a timing determination threshold value to be compared with the measurement value,
The processing unit adds information related to the measurement timing based on the timing at which the measurement value changes across the timing determination threshold to the periodically acquired measurement value,
Maintaining the order in which the plurality of measurement values to which the measurement timing information is added is acquired and divided into a plurality of measurement values equal to or less than the maximum number of data, After executing the first digital output that performs digital output from the interface unit in a time shorter than the time determined by the product of
After the previous digital output, within the time determined by the product of the maximum number of data and the period, the order in which a plurality of measurement values to which information on the next measurement timing following the output measurement value is added is acquired is maintained. The second data is divided into a plurality of measurement values that are equal to or less than the maximum number of data, and is digitally output from the interface unit in a time shorter than the time determined by the product of the divided data number and the period Perform digital output,
Thereafter, the second digital output is repeated.   The data storage unit stores a maximum data amount or a maximum output cycle as information for specifying a maximum number of data when a plurality of processed measurement values are collectively output. The measuring device described.   The measurement apparatus according to claim 1, wherein the information related to the measurement timing is a measurement start timing.   The measurement apparatus according to claim 1, wherein the information related to the measurement timing is a measurement start timing and a measurement end timing. The information about the measurement timing is the measurement start timing,
The measurement apparatus according to claim 1, wherein time-series information with reference to the measurement start timing is added to the periodically acquired measurement value in association with the measurement value. The information about the measurement timing is the measurement start timing,
2. The measurement value acquired at a predetermined cycle is added in association with elapsed time information calculated based on the measurement cycle based on the measurement start timing, and the measurement timing information is added. Or the measuring apparatus of 2.   The processing unit starts the first collective digital output when a trigger signal is input, and repeats the second collective digital output while the input of the trigger signal is continued. The measuring device described in 1.   The processing unit starts the first batch digital output when the measurement value changes across the determination timing determination threshold, and the second time until the measurement value changes over the determination timing determination threshold again. The measuring apparatus according to claim 2, wherein the batch digital output is repeated.   The measurement apparatus according to claim 1, wherein an identification number of the measurement apparatus included in the measurement apparatus is further added to the measurement value.

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