CN210639246U - Sensor parameter tester - Google Patents
Sensor parameter tester Download PDFInfo
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- CN210639246U CN210639246U CN201921441473.XU CN201921441473U CN210639246U CN 210639246 U CN210639246 U CN 210639246U CN 201921441473 U CN201921441473 U CN 201921441473U CN 210639246 U CN210639246 U CN 210639246U
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Abstract
The utility model discloses a sensor parameter tester, include: the power module, the power joins conversely protects test module, sensor consumption current measurement module, load resistance, sensor residual voltage test module, sensor and sensor load current measurement module, power joins conversely protects test module one end and is connected with the power module electricity, the other end is connected with sensor consumption current measurement module and load resistance electricity respectively, the sensor is connected with sensor consumption current measurement module, load resistance and sensor load current measurement module electricity respectively, load current measurement module one end ground connection, sensor residual voltage test module one end insert load resistance with between the sensor, other end ground connection. The utility model integrates the sensor parameter test, and the operation is simple and convenient; the digital display screen is convenient for reading and has high efficiency; the load can be switched into multiple gears to meet different test requirements; the structure is simple and small, the circuit layout design is simple, and the cost is low.
Description
Technical Field
The utility model relates to a sensor technical field especially relates to a sensor parameter tester.
Background
The photoelectric sensor is a sensor using a photoelectric element as a detection element. The device firstly converts the measured change into the change of an optical signal, and then further converts the optical signal into an electric signal by virtue of the photoelectric element, because the device has the characteristics of long detection distance, small limit on a detected object, short response time and capability of realizing non-contact detection, the device is favored by researchers, and the application related field is very wide. However, at present, a plurality of types of photoelectric sensors lack a uniform sensor parameter testing device, most of the traditional sensor parameter testers can only test one item, the detection efficiency is low, and data display modes are mostly in a pointer mode, so that reading is inconvenient; different types of sensor parameter tests need different testers, so that the problems of complicated sensor parameter tests, high cost, low test efficiency and the like are caused.
Therefore, the prior art is not sufficient and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a sensor parameter tester.
The technical scheme of the utility model as follows: there is provided a sensor parameter tester comprising: power module, power connect protection test module, sensor consumption current measurement module, load resistance, sensor residual voltage test module, sensor and sensor load current measurement module in reverse, power connect protection test module one end with the power module electricity is connected, the other end respectively with sensor consumption current measurement module reaches the load resistance electricity is connected, the sensor respectively with sensor consumption current measurement module, load resistance and sensor load current measurement module electricity are connected, load current measurement module one end ground connection, sensor residual voltage test module one end inserts load resistance with between the sensor, other end ground connection.
And the power supply reverse connection protection test module is used for confirming whether the reverse connection protection function of the sensor is normal or not.
And the sensor consumption current measuring module is used for confirming whether the working current of the sensor exceeds the design requirement.
The sensor residual voltage testing module is used for determining whether the residual voltage of the interior of the sensor, which is switched on and off, meets the design requirements.
And the sensor load current measuring module is used for confirming whether the current controlled by the sensor to flow through the load resistor meets the design requirement.
Further, the power module comprises a total power input end, a total voltage gear knob and a load current gear knob.
Further, the load current position knob includes: neutral, 200mA, 100mA and 50mA gears; the total voltage gear knob includes: three gears of 5V, 12V and 24V.
Furthermore, the tester also comprises a short circuit testing module used for confirming whether the current of the sensor in the short circuit state meets the design requirement.
Further, the tester still includes load current display screen, residual voltage display screen, consumption current display screen, total voltage display screen, load current display screen, residual voltage display screen, consumption current display screen and total voltage display screen are the digital display screen.
Further, the sensor consumption current measuring module, the load resistor, the sensor residual voltage testing module, the sensor and the sensor load current measuring module are respectively divided into an NPN testing module and a PNP testing module, and parameter testing can be respectively carried out on the NPN sensor and the PNP sensor.
By adopting the scheme, the sensor parameter tester integrates the parameter tests of the sensors, is simple and convenient to operate, and is convenient for testing the parameters of the sensors in a centralized manner; the digital display screen is convenient for reading, the testing time is saved, and the numerical value is accurate; the load can be switched to various different gears to meet different test requirements; the whole structure is simple and small, the circuit layout design is simple, and the cost is low.
Drawings
FIG. 1 is a schematic block diagram of a sensor parameter tester of the present invention;
FIG. 2 is a front view of the sensor parameter tester of the present invention;
FIG. 3 is a circuit diagram of a power module in the sensor parameter tester of the present invention;
FIG. 4 is a circuit diagram of a power reverse connection protection module in the sensor parameter tester of the present invention;
fig. 5 is a circuit diagram of an NPN sensor interface in the sensor parameter tester of the present invention;
fig. 6 is a circuit diagram of an NPN test module in the sensor parameter tester of the present invention;
fig. 7 is a circuit diagram of a PNP sensor interface in the sensor parameter tester of the present invention;
fig. 8 is the circuit diagram of the PNP test module in the sensor parameter tester of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the present invention provides a sensor parameter tester, including: power module, power connect protection test module, sensor consumption current measurement module, load resistance, sensor residual voltage test module, sensor and sensor load current measurement module in reverse, power connect protection test module one end with the power module electricity is connected, the other end respectively with sensor consumption current measurement module reaches the load resistance electricity is connected, the sensor respectively with sensor consumption current measurement module, load resistance and sensor load current measurement module electricity are connected, load current measurement module one end ground connection, sensor residual voltage test module one end inserts load resistance with between the sensor, other end ground connection. And the power supply reverse connection protection test module is used for confirming whether the reverse connection protection function of the sensor is normal or not. And the sensor consumption current measuring module is used for confirming whether the working current of the sensor exceeds the design requirement. The sensor residual voltage testing module is used for determining whether the residual voltage of the interior of the sensor, which is switched on and off, meets the design requirements. And the sensor load current measuring module is used for confirming whether the current controlled by the sensor to flow through the load resistor meets the design requirement. Specifically, the utility model discloses in the tester can carry out parametric test to NPN sensor and PNP sensor, correspondingly, sensor consumption current measurement module, load resistance, sensor residual voltage test module, sensor and sensor load current measurement module include NPN type and two kinds of types of PNP type respectively, and the concrete embodiment includes two sets of test module on the tester promptly, and NPN sensor consumption current measurement module, NPN load resistance, NPN sensor residual voltage test module, NPN sensor and NPN sensor load current measurement module promptly, and PNP sensor consumption current measurement module, PNP load resistance, PNP sensor residual voltage test module, PNP sensor and PNP sensor load current measurement module test two kinds of type's sensor respectively.
Referring to fig. 2, the power module includes a total power input terminal 1, a total voltage shift knob 2, and a load current shift knob, specifically, in this embodiment, the load current shift knob includes an NPN-type load current shift knob 3 and a PNP-type load current shift knob 4. The load current gear knob includes: neutral, 200mA, 100mA and 50mA gears; the total voltage shift knob 2 includes: three gears of 5V, 12V and 24V. The testing of different test items can be carried out by adjusting the current and voltage gears according to the testing requirements. The tester also comprises a load current display screen, a residual voltage display screen, a consumed current display screen 5 and a total voltage display screen 6, wherein the load current display screen is divided into an NPN type load current display screen 7 and a PNP type load current display screen 8, and the residual voltage display screen is divided into an NPN type residual voltage display screen 9 and a PNP type residual voltage display screen 10. And load current display screen, residual voltage display screen, consumption current display screen 5 and total voltage display screen 6 are the digital display screen, and the digital display screen is convenient for accurate reading, practices thrift test time, promotes efficiency of software testing, improves the test accuracy simultaneously. The tester further comprises a short-circuit testing module, which is used for determining whether the current of the sensor in the short-circuit state meets the design requirement, and the tester is provided with a short-circuit switch, specifically, the short-circuit switch in this embodiment comprises an NPN-type short-circuit switch 11 and a PNP-type short-circuit switch 12. The tester also comprises a plurality of indicator lamps, namely a power indicator lamp 13, a reverse connection protection indicator lamp 14, a load current indicator lamp and a short-circuit current indicator lamp. The voltage reverse connection comprises a testing module and a reverse connection protection switch 15, the sensor comprises a sensor access port, and the sensor access port is divided into an NPN type access port 16 and a PNP type access port 17.
The tester can be used for carrying out parameter testing on the NPN sensor or the PNP sensor, and the test items which can be carried out include: the method comprises the following steps of load current and residual voltage testing, power source reverse connection testing, short-circuit protection testing, testing of no-load current consumption of a sensor during non-detection, and testing of no-load current consumption of the sensor during detection. The sensor parameter testing device integrates the parameter testing of the sensor, is simple and convenient to operate, is convenient for testing all parameters of the sensor in a centralized mode, does not need to test independently, improves the testing efficiency and reduces the testing cost.
Please refer to fig. 3 to 8, which are circuit diagrams of the tester of the present invention, specifically including a power module circuit, a power reverse connection protection module circuit, an NPN interface circuit, an NPN test module circuit, a PNP interface circuit, and a PNP test module circuit. Specifically, in this embodiment, the power supply is a taiwan bright weft switch power supply, the specific model is RT-125D, the model of an ammeter used in a circuit of the tester is YB5145I-a, and the model of a voltmeter is YB 5145I-V. The power supply module comprises a voltmeter for testing total voltage and an ammeter for testing consumed current; the NPN test module comprises a current meter for testing the current of the NPN load and a voltmeter for testing the residual voltage of the NPN; the PNP test module comprises a current meter for testing the PNP load current and a voltmeter for testing the PNP residual voltage. The tester has simple circuit design, can realize the test process of the sensor parameters through simple circuit connection relation, is convenient to operate, reduces the test cost and effectively improves the test efficiency.
The utility model discloses utilize the method of above-mentioned sensor parameter tester test sensor parameter, including following specific step:
step S1, testing the load current and the residual voltage; the sensor is connected into a corresponding sensor interface, a switch at a main power supply connecting end is turned on, a main voltage gear knob is adjusted, an indicator light is bright red, the display results of a load current display screen and a residual voltage display screen are observed, and whether the test requirements of the sensor are met or not is judged.
Step S2, testing the reverse connection of the power supply; the method comprises the steps of connecting a sensor into a corresponding sensor interface, turning on a switch of a main power supply access end, adjusting a knob of a main voltage gear, turning on a red indicator light, turning on a switch of a power supply reverse connection protection test module, observing whether the indicator light of the power supply reverse connection protection test module is red or not, observing the numerical display conditions of a load current display screen and a consumed current display screen, judging whether the sensor is reversely connected or not, turning off the switch of the power supply reverse connection protection test module, observing the numerical display conditions of the load current display screen and the consumed current display screen, and finally judging whether the sensor can effectively prevent the reverse connection of a positive electrode and a negative electrode.
Step S3, short-circuit protection test; the method comprises the steps of connecting a sensor into a corresponding sensor interface, turning on a switch of a main power supply access end, adjusting a total voltage gear knob, enabling an indicator light to be bright red, turning on a switch of a short-circuit testing module, enabling the indicator light of the short-circuit testing module to be bright red, enabling the sensor to be in a working state, observing data of a load current display screen, judging whether the sensor is short-circuited, turning off the switch of the short-circuit testing module, observing data of the load current display screen, and judging whether the sensor meets design requirements.
Step S4, testing the current consumed by the sensor without load when the sensor is not detected; the sensor is connected to a corresponding sensor interface, a switch at a main power supply connecting end is turned on, a main voltage gear knob is adjusted, an indicator lamp is bright red, a load current gear knob is adjusted, and the numerical value of a consumed current display screen is observed, namely the sensor does not consume load current during non-detection.
Step S5, testing the no-load current consumption of the sensor during detection; the sensor is connected to a corresponding sensor interface, a switch at a main power supply connecting end is turned on, a main voltage gear knob is adjusted, an indicator lamp is bright red, a load current gear knob is adjusted, and the numerical value of a consumed current display screen is observed, namely the sensor does not consume load current during detection.
The testing sequence from the step S1 to the step S5 is arbitrary, and any one or more of the steps may be selected for testing according to actual needs in a specific testing process.
The method comprises the following steps of respectively testing according to different types of sensors, wherein load current gears of NPN or PNP sensors are used for production and are 100mA, voltage gears are 24V, and the method comprises the following specific steps:
the step S1 is specifically to take the NPN or PNP sensor, connect the three blue-black-brown wires to the interface corresponding to the NPN or PNP sensor, turn on the switch at the main power supply access end, adjust the total voltage shift knob to the 24V shift, turn on the indicator light in red, load the numerical value displayed on the current display screen, if 90mA ± 8mA, then test OK for the load current of the NPN or PNP sensor, observe that the displayed numerical value of the residual voltage display screen is 0.6V at this time, and if the numerical value is less than 82mA, test NG for the load current of the NPN or PNP sensor.
The step S2 is specifically that an NPN or PNP sensor is taken, three blue-black-brown wires are connected to an interface corresponding to the NPN or PNP sensor, a switch at a main power supply connection end is turned on, a main voltage gear knob is adjusted to a 24V gear, an indicator light is bright red, a switch of a power supply reverse connection protection test module is turned on, the indicator light of the power supply reverse connection protection test module is bright red, and it is observed that the values of a load current display screen and a consumed current display screen are displayed in countless values, then the NPN or PNP sensor does not work after the positive and negative electrodes are reversely connected, then the power supply reverse connection protection test module is turned off, the values of the load current display screen and the consumed current display screen are normally displayed, and then the NPN or PNP sensor can effectively prevent the positive and.
The step S3 is specifically to take the NPN or PNP sensor, connect the three blue-black-brown wires to the interface corresponding to the NPN or PNP sensor, turn on the switch at the main power supply connection end, adjust the total voltage shift knob to the 24V shift, turn on the switch of the short-circuit test module, turn on the indicator of the short-circuit test module in red, so that the NPN or PNP sensor is in a working state, observe that the value of the load current display screen is lower than a normal value, judge that the NPN or PNP sensor has short-circuited, turn off the switch of the short-circuit test module, observe that the value of the load current display screen returns to normal, and judge that the NPN or PNP sensor meets.
The step S4 is specifically to take the NPN or PNP sensor, connect the three blue-black-brown wires to the interface corresponding to the NPN or PNP sensor, turn on the switch at the main power supply access end, adjust the total voltage shift knob to the 24V shift, turn on the indicator light in red, adjust the load current shift knob to the neutral, observe the value of the current consumption display screen, where the value is the current consumption of the NPN or PNP sensor without load when the current consumption display screen is not detected.
The step S5 is specifically to take the NPN or PNP sensor, connect the three blue-black-brown wires to the interface corresponding to the NPN or PNP sensor, turn on the switch at the main power supply access end, adjust the total voltage shift knob to the 24V shift, turn on the indicator light in red, adjust the load current shift knob to the neutral, observe the value of the consumed current display screen, where the value is the no-load consumed current of the NPN or PNP sensor during detection.
To sum up, the sensor parameter tester of the utility model integrates the parameter tests of the sensors, has simple and convenient operation, and is convenient for testing the parameters of the sensors in a centralized way; the digital display screen is convenient for reading, the testing time is saved, and the numerical value is accurate; the load can be switched to various different gears to meet different test requirements; the whole structure is simple and small, the circuit layout design is simple, and the cost is low.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A sensor parameter tester, comprising: the device comprises a power supply module, a power supply reverse connection protection testing module, a sensor consumption current measuring module, a load resistor, a sensor residual voltage testing module, a sensor and a sensor load current measuring module, wherein one end of the power supply reverse connection protection testing module is electrically connected with the power supply module, the other end of the power supply reverse connection protection testing module is respectively electrically connected with the sensor consumption current measuring module and the load resistor, the sensor is respectively electrically connected with the sensor consumption current measuring module, the load resistor and the sensor load current measuring module, one end of the load current measuring module is grounded, one end of the sensor residual voltage testing module is connected between the load resistor and the sensor, and the other end of the sensor residual voltage testing module is;
the power supply reverse connection protection testing module is used for confirming whether the reverse connection protection function of the sensor is normal or not;
the sensor consumption current measuring module is used for determining whether the working current of the sensor exceeds the design requirement;
the sensor residual voltage testing module is used for determining whether the residual voltage of the sensor which is internally conducted and closed meets the design requirement;
and the sensor load current measuring module is used for confirming whether the current controlled by the sensor to flow through the load resistor meets the design requirement.
2. The sensor parameter tester of claim 1, wherein the power module comprises a total power input, a total voltage step knob, a load current step knob.
3. The sensor parameter tester of claim 2, wherein the load current position knob comprises: neutral, 200mA, 100mA and 50mA gears; the total voltage gear knob includes: three gears of 5V, 12V and 24V.
4. The sensor parameter tester of claim 1, further comprising a short circuit test module for determining whether the current of the sensor in a short circuit state meets design requirements.
5. The sensor parameter tester of claim 4, further comprising a load current display screen, a residual voltage display screen, a consumed current display screen, and a total voltage display screen, wherein the load current display screen, the residual voltage display screen, the consumed current display screen, and the total voltage display screen are all digital display screens.
6. The sensor parameter tester of any one of claims 1-5, wherein the sensor consumption current measuring module, the load resistor, the sensor residual voltage measuring module, the sensor and the sensor load current measuring module are respectively divided into an NPN testing module and a PNP testing module, and the NPN sensor and the PNP sensor can be subjected to parameter testing respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921441473.XU CN210639246U (en) | 2019-08-30 | 2019-08-30 | Sensor parameter tester |
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| CN201921441473.XU CN210639246U (en) | 2019-08-30 | 2019-08-30 | Sensor parameter tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470976A (en) * | 2019-08-30 | 2019-11-19 | 深圳市华怡丰科技有限公司 | A kind of sensor parameters tester and test method |
| CN112162121A (en) * | 2020-09-28 | 2021-01-01 | 湖南准联传感器有限公司 | Universal electrical tester for sensor |
| CN112881903A (en) * | 2021-01-15 | 2021-06-01 | 胜达克半导体科技(上海)有限公司 | Measuring method of digital currency processor chip based on programmable power supply |
-
2019
- 2019-08-30 CN CN201921441473.XU patent/CN210639246U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470976A (en) * | 2019-08-30 | 2019-11-19 | 深圳市华怡丰科技有限公司 | A kind of sensor parameters tester and test method |
| CN112162121A (en) * | 2020-09-28 | 2021-01-01 | 湖南准联传感器有限公司 | Universal electrical tester for sensor |
| CN112881903A (en) * | 2021-01-15 | 2021-06-01 | 胜达克半导体科技(上海)有限公司 | Measuring method of digital currency processor chip based on programmable power supply |
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