CN210742112U - Element detector - Google Patents
Element detector Download PDFInfo
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- CN210742112U CN210742112U CN201921418012.0U CN201921418012U CN210742112U CN 210742112 U CN210742112 U CN 210742112U CN 201921418012 U CN201921418012 U CN 201921418012U CN 210742112 U CN210742112 U CN 210742112U
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Abstract
The utility model relates to an element detector, including the detector body, this internal light source and the computational circuit of being provided with of detector, element detector is still including the detection alarm system who is used for detecting light source and computational circuit whether unusual. When the light source and/or the computing circuit are abnormal, the detection alarm system can output an alarm signal to remind a worker, so that the worker can close the element detector in time, and the possibility that data detected by the element detector is abnormal and even the element detector is damaged is avoided; the working state of the element detector can be directly monitored by the simple detection alarm circuit, so that the hysteresis and/or instability of the complex circuit monitoring inside the element detector are avoided.
Description
Technical Field
The utility model belongs to the technical field of the technique that the element detected and specifically relates to an element detector is related to.
Background
An elemental detector is a commonly used instrument for detecting elemental components of an article. The basic principle is to judge the element components of the detected object by utilizing the different reflection effects of atoms of different elements on light.
The element detector is generally provided with a relatively precise light source and a relatively complex computing circuit, and the working states of the light source and the computing circuit can affect the speed of element detection and even the accuracy of the result, so that it is necessary to keep the light source and the computing circuit in normal working states.
The existing element detector can only judge whether the element detector works normally or not by depending on a spectrum result of element detection or by the feedback of the element detector to the state of the element detector, and the more precise circuit detection has lower reliability, is easy to lose efficacy along with the damage of a calculation circuit, and also has certain hysteresis.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an element detector, its advantage is that its operating condition and direct stability, the reliability height that can comparatively directness judge light source and calculating circuit in the element testing process.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides an element detector, includes the detector body, this internal light source and the computational circuit of being provided with of detector, element detector still including being used for detecting whether light source and computational circuit work unusual detection alarm system, it includes to detect alarm system:
the light source abnormity detection module is used for detecting the working state of the light source so as to respond to the abnormal working state of the light source and output a light source abnormity signal;
the computing circuit temperature detection module is used for detecting the working state of the computing circuit so as to respond to the working state abnormity of the computing circuit and output a circuit abnormity signal;
the processing unit is coupled with the light source abnormity detection module and the calculation circuit temperature detection module and used for receiving the light source abnormity signal and the circuit abnormity signal so as to respond to the received light source abnormity signal and/or the circuit abnormity signal and output a processing signal;
an alarm module coupled to the processing unit to receive the processed signal and output an alarm signal in response to the processed signal.
By adopting the technical scheme, in the working process of the element detector, when the light source and/or the computing circuit are abnormal, the alarm module can output an alarm signal to remind a worker, so that the worker can close the element detector in time, and the possibility of data abnormality detected by the element detector and even damage of the element detector is avoided; the working state of the element detector can be directly monitored by the simple detection alarm circuit, so that the hysteresis and/or instability of the complex circuit monitoring inside the element detector are avoided.
As the utility model discloses an improvement, light source anomaly detection module includes:
a light intensity detecting unit for detecting a light intensity of the light source to output a light intensity detection signal in response to the light intensity of the light source;
the first comparison unit is coupled to the light intensity detection unit and receives the light intensity detection signal so as to respond to the fact that the light intensity of the light source is lower than a preset light intensity and output the light source abnormal signal.
As the utility model discloses an improvement, the luminous intensity detecting element is including concatenating in the photo resistance and the first fixed resistance of power, the photo resistance corresponds the light source setting, the node output that photo resistance and first fixed resistance are coupled the luminous intensity detected signal.
As an improvement of the utility model, the calculation circuit temperature detection module includes:
a temperature detection unit for detecting a temperature of the calculation circuit to output a temperature detection signal in response to the temperature of the calculation circuit;
and the second comparison unit is coupled with the temperature detection unit and used for receiving the temperature detection signal so as to respond that the temperature of the calculation circuit is greater than the preset temperature and output the circuit abnormal signal.
As the utility model discloses an improvement, the temperature detecting element is including concatenating in the thermistor and the second fixed resistor of power, thermistor sets up on the calculating circuit, the node output that thermistor and second fixed resistor are coupled temperature detect signal.
As the utility model discloses an improvement, the processing unit sets up to dual input or gate, the unusual detection module of light source and calculation circuit temperature detection module are coupled respectively to two inputs of or gate receive light source abnormal signal and circuit abnormal signal in order to export the signal of handling.
As the utility model discloses an improvement, alarm module is including concatenating in the first switch tube and the first relay of power, first switch tube trigger end is coupled the processing unit is received processing signal switches on in order to respond to processing signal, first relay includes one and concatenates in the normally open contact of power with the bell, alarm signal shows for the bell circular telegram sound production.
As an improvement of the utility model, the detection alarm system further includes:
a delay unit coupled to the processing unit to receive the processed signal and delay an output delayed signal in response to the processed signal;
the action transmitting unit is coupled with the time delay unit and used for receiving the time delay signal so as to respond to the time delay signal and output an action signal and a wireless signal; the alarm unit receives the action signal to respond to the action signal to stop outputting the alarm signal;
and the wireless prompting device is in wireless connection with the action transmitting unit to receive the wireless signal so as to respond to the wireless signal to send out a prompting signal.
As the utility model discloses an improvement, action transmitting element is including concatenating in proper order in the second switch tube of power, wireless transmitter and third relay, the third relay includes one and concatenates in the normally closed contact of power with the normally open contact of electric bell and first relay, the action signal performance does the disconnection of third relay normally closed contact, export when wireless transmitter circular telegram wireless signal.
As the utility model discloses an improvement, wireless suggestion device includes wireless receiver and concatenates bee calling organ and the third switch pipe in the power, wireless receiver with wireless transmitter wireless connection receives wireless signal is in order to respond to wireless signal output trigger signal, the third switch pipe trigger end is coupled wireless receiver receives trigger signal switches on in order to respond to trigger signal, the prompt signal performance is bee calling organ work sound production.
To sum up, the utility model discloses a beneficial technological effect does:
1. when the working state of the light source and/or the computing circuit is abnormal, the alarm module outputs an alarm signal to prompt a worker, so that the detection result is prevented from being influenced by the abnormal working state, and even potential safety hazards caused by instrument damage are avoided;
2. if no one can not receive the alarm signal near the detector, the staff carries the wireless prompting device and the wireless prompting device can output a prompting signal to the staff, so that the staff can leave the detector and still monitor the abnormal state of the detector in the detection process of a long period;
3. when the wireless prompting device outputs the prompting signal, the alarm signal stops being output, so that invalid alarm is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure, 1, a light intensity detection unit; 2. a first comparing unit; 3. a temperature detection unit; 4. a second comparing unit; 5. an alarm module; 6. a delay unit; 7. an action transmitting unit; 8. and a wireless prompting device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the element detector comprises a detector body, wherein a light source and a computing circuit are arranged in the detector body, an article to be detected is placed into the detector body, the light source emits light to penetrate through the article to be detected, so that the element components of the article to be detected are determined by analyzing the spectrum after the article penetrates through the article, and the element components of the article to be detected are analyzed through the computing circuit of the element detector through spectrum computing.
The element detector further comprises a detection alarm system for detecting whether the light source and the computing circuit work abnormally, wherein the detection alarm system comprises a light source abnormity detection module for detecting the working state of the light source to output a light source abnormity signal in response to the abnormal working state of the light source, a computing circuit temperature detection module for detecting the working state of the computing circuit to output a circuit abnormity signal in response to the abnormal working state of the computing circuit, a processing unit coupled with the light source abnormity detection module and the computing circuit temperature detection module to receive the light source abnormity signal and the circuit abnormity signal and output a processing signal in response to the received light source abnormity signal and/or the circuit abnormity signal, and an alarm module 5 coupled with the processing unit to receive the processing signal and output an alarm signal in response to the processing signal.
The light source abnormality detection signal includes a light intensity detection unit 1 for detecting the light intensity of the light source to output a light intensity detection signal in response to the light intensity of the light source, and a first comparison unit 2 coupled to the light intensity detection unit 1 to receive the light intensity detection signal and output the light source abnormality signal in response to the light intensity of the light source being lower than a predetermined light intensity.
The light intensity detecting unit 1 comprises a fixed resistor R1 and a photosensitive resistor R2 which are connected in series with a power supply, wherein the fixed resistor R1 is arranged close to the anode of the power supply, and a node where the fixed resistor R1 and the photosensitive resistor R2 are coupled outputs the light intensity detecting signal. It should be pointed out that, the light path that supplies light source light to pass through is generally provided with to the correspondence in the element detector, and in this embodiment, photo resistor R2 sets up in the light path edge, and photo resistor R2 can be according to light intensity in the light path promptly light source light intensity takes place the resistance and changes to make the light intensity detected signal reaction light source illumination intensity.
The first comparison unit 2 comprises a first reference unit and a comparator N1. The first reference unit comprises a fixed resistor R3 and a potentiometer R4 which are connected in series with a power supply, wherein the fixed resistor R3 is arranged close to the anode of the power supply, and a node coupled with the fixed resistor R3 and the potentiometer R4 outputs a first preset voltage responding to preset light intensity. The non-inverting input terminal of the comparator N1 is coupled to the light intensity detecting unit 1 for receiving the light intensity detecting signal, the inverting input terminal is coupled to the first reference unit for receiving the first preset voltage, and when the light intensity at the position of the photo resistor R2 is smaller than the light intensity set value, the light intensity detecting signal is greater than the first preset voltage, so that the comparator N1 outputs the light source abnormality signal.
It can be understood that, since the light source of the element detector has a plurality of operating states of illumination intensity during the normal operation, the light intensity detecting unit 1 in this embodiment only considers the condition that the light intensity of the light source is lower than the minimum light intensity for the normal operation of the light source, that is, the first preset voltage reflects the minimum light intensity value that may normally exist during the element detection process by adjusting the potentiometer R4.
The calculating circuit temperature detecting module comprises a temperature detecting unit 3 for detecting the temperature of the calculating circuit to output a temperature detecting signal responding to the temperature of the calculating circuit, and a second comparing unit 4 coupled to the temperature detecting unit 3 to receive the temperature detecting signal and output the circuit abnormal signal responding to the temperature of the calculating circuit being higher than the preset temperature.
The temperature detection unit 3 comprises a fixed resistor R5 and a thermistor R6 which are connected in series with a power supply, the fixed resistor R5 is arranged close to the anode of the power supply, and a node where the fixed resistor R5 and the thermistor R6 are coupled outputs the temperature detection signal. Since the calculating circuit of the element detector is generally an integrated circuit board, and the thermistor R5 is disposed on the integrated circuit board of the calculating circuit, the resistance of the thermistor R6 changes with the temperature change of the calculating circuit, so that the temperature detecting signal reflects the temperature of the calculating circuit board. In the present embodiment, the thermistor R6 is provided as a negative temperature coefficient thermistor.
The second comparing unit 4 comprises a second reference unit and a comparator N2. The second reference unit includes a fixed resistor R7 and a potentiometer R8 connected in series to a power supply, and a node to which the fixed resistor R7 and the potentiometer R8 are coupled outputs a second preset voltage in response to a preset temperature. The non-inverting input terminal of the comparator N2 is coupled to the temperature detecting unit 3 for receiving the temperature detecting signal, the inverting input terminal is coupled to the second reference unit for receiving the second preset voltage, and when the temperature of the computing circuit is higher than the preset temperature, the temperature detecting signal is higher than the second preset voltage, so that the comparator N2 outputs the circuit abnormal signal.
Likewise, the second predetermined voltage depends on the specific heat resistance of the computing circuit, i.e. it can represent a different temperature.
The processing unit is configured as a dual-input or gate a in this embodiment, and two input ends of the or gate a are respectively coupled to the light source abnormality detection module and the calculation circuit temperature detection module to receive the light source abnormality signal and the circuit abnormality signal to output the processing signal.
The alarm module 5 comprises a triode Q1 and a relay KM1 which are connected in series with a power supply. The triode Q1 is set to be an NPN triode, the base electrode is coupled with the processing unit to receive the processing signal, the collector electrode is coupled with the positive electrode of the power supply, the emitter electrode is coupled with the coil of the relay KM1, the other end of the coil of the relay KM1 is coupled with the negative electrode of the power supply, the relay KM1 comprises a normally open contact which is connected with the electric bell in series with the power supply, and the alarm signal shows that the electric bell works and sounds. When the alarm module 5 receives the processing signal, the triode Q1 is conducted to electrify the coil of the relay KM1, so that the normally open contact of the relay KM1 is closed, and the electric bell is electrified and sounded.
The detection alarm system also comprises a delay unit 6 which is coupled with the processing unit to receive the processing signal and responds to the processing signal to delay and output a delay signal, an action transmitting unit 7 which is coupled with the delay unit 6 to receive the delay signal and responds to the delay signal to output a wireless signal, and a wireless prompting device 8 which is wirelessly connected with the action transmitting unit 7 to receive the wireless signal and responds to the wireless signal to send a prompting signal.
The delay unit 6 is set as a 555 timer and an external delay circuit thereof, a 6-pin of the 555 timer is coupled with the processing unit to receive the processing signal, and a 3-pin of the 555 timer outputs the delay signal after the 555 timer receives the processing signal for a period of time.
The action transmitting unit 7 comprises a triode Q2, a wireless transmitter and a relay KM3 which are sequentially connected in series with a power supply. The triode Q2 is set to be an NPN type triode, the base electrode of the triode Q2 is coupled with the delay unit 6 to receive the delay signal, the collector electrode of the triode Q89is coupled with the positive electrode of the power supply, the emitter electrode of the triode Q2 is coupled with the wireless transmitter, the other end of the wireless transmitter is coupled with the coil of the relay KM3, and the other end of the coil of the relay KM 3. The wireless transmitter outputs the wireless signals when being electrified and operated, the relay KM3 comprises a normally closed contact which is connected with the electric bell and the normally open contact of the relay KM1 in series with a power supply, and the normally closed contact of the relay KM3 is disconnected when the coil of the relay KM3 is electrified so as to stop the electric bell. That is, the electric bell will automatically stop working after ringing for a period of time, and in this case, no person is generally used to check the element detector, that is, no person receives the alarm signal, thereby avoiding invalid alarm.
The wireless prompting device 8 is carried by a person, namely in the long-period element detection process, a worker may leave, and the worker can not always know when the worker is abnormal when the worker carries the wireless prompting device 8 element detector at the state of monitoring the element detector nearby the element detector. Specifically, the wireless prompting device 8 comprises a wireless receiver and a buzzer and a triode Q3 which are connected in series with a power supply. The wireless receiver is wirelessly connected with the wireless transmitter to receive the wireless signal and output a trigger signal in response to the wireless signal. The triode Q3 is set as NPN type triode, the base electrode is coupled with the wireless receiver to receive the trigger signal, the emitter electrode is coupled with the negative electrode of the power supply, the collector electrode is coupled with the buzzer, the other end of the buzzer is coupled with the positive electrode of the power supply, and the prompt signal shows that the buzzer is electrified and sounds. When the wireless prompting device 8 receives the wireless signal, the wireless receiver outputs a trigger signal to conduct the triode Q3, so that the buzzer is electrified and sounded.
In the specific working process: in the longer-period element detection process of the element detector, the working state of the element detector is simply monitored by directly monitoring the light intensity of the light source and calculating the temperature of the circuit, and the alarm module 5 can give an alarm to prompt a worker to overhaul when the working state of the element detector is abnormal, so that the potential safety hazard caused by the influence on the working result precision of the element detector and even the damage of the element detector is avoided; the wireless prompting device 8 can facilitate people to remotely monitor the working state of the element detector, so that people do not need to always watch around the element detector, meanwhile, when the electric bell sounds, no person can process for a period of time, and then the fact that no person is near the element analyzer is proved, and at the moment, the electric bell stops sounding when the wireless prompting device prompts staff, so that invalid alarming is avoided.
The utility model discloses a circuit structure is simple, the operating condition of monitoring element detector that can be comparatively direct to hysteresis quality and/or instability because of the inside complicated circuit monitoring of element detector have been avoided.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides an element detector, includes the detector body, this internal light source and the computational circuit of being provided with of detector, characterized by, element detector still including being used for detecting light source and computational circuit whether unusual detection alarm system works, it includes to detect alarm system:
the light source abnormity detection module is used for detecting the working state of the light source so as to respond to the abnormal working state of the light source and output a light source abnormity signal;
the computing circuit temperature detection module is used for detecting the working state of the computing circuit so as to respond to the working state abnormity of the computing circuit and output a circuit abnormity signal;
the processing unit is coupled with the light source abnormity detection module and the calculation circuit temperature detection module and used for receiving the light source abnormity signal and the circuit abnormity signal so as to respond to the received light source abnormity signal and/or the circuit abnormity signal and output a processing signal;
an alarm module (5) coupled to the processing unit to receive the processed signal and to output an alarm signal in response to the processed signal.
2. The elemental detector of claim 1, wherein the light source anomaly detection module comprises:
a light intensity detection unit (1) for detecting a light intensity of the light source to output a light intensity detection signal in response to the light intensity of the light source;
the first comparison unit (2) is coupled with the light intensity detection unit (1) and receives the light intensity detection signal so as to respond that the light intensity of the light source is lower than the preset light intensity and output the light source abnormal signal.
3. An elemental detector according to claim 2, wherein the light intensity detecting unit (1) comprises a photo resistor and a first fixed resistor connected in series to a power supply, the photo resistor is disposed corresponding to the light source, and a node where the photo resistor and the first fixed resistor are coupled outputs the light intensity detecting signal.
4. The elemental instrument of claim 1, wherein the computational circuit temperature detection module includes:
a temperature detection unit (3) for detecting a temperature of the calculation circuit to output a temperature detection signal in response to the calculation circuit temperature;
and the second comparison unit (4) is coupled with the temperature detection unit (3) and used for receiving the temperature detection signal so as to respond that the temperature of the calculation circuit is greater than the preset temperature and output the circuit abnormal signal.
5. An elemental detector according to claim 4, wherein the temperature detecting unit (3) comprises a thermistor connected in series to a power supply and a second fixed resistor, the thermistor being arranged on the computing circuit, and a node at which the thermistor is coupled to the second fixed resistor outputting the temperature detecting signal.
6. The elemental detector of claim 1, wherein the processing unit is configured as a dual-input or gate, and two input terminals of the or gate are respectively coupled to the light source abnormality detection module and the calculation circuit temperature detection module to receive the light source abnormality signal and the circuit abnormality signal and output the processing signal.
7. An element detector according to claim 1, wherein the alarm module (5) comprises a first switch tube connected in series to the power supply and a first relay, the trigger end of the first switch tube being coupled to the processing unit to receive the processed signal and to be turned on in response to the processed signal, the first relay comprising a normally open contact connected in series to the power supply with the electric bell, the alarm signal being manifested as an electric bell sounding when the electric bell is turned on.
8. The elemental detector of claim 7, wherein the detection alarm system further comprises:
a delay unit (6) coupled to the processing unit to receive the processed signal to delay an output delayed signal in response to the processed signal;
the action transmitting unit (7) is coupled with the time delay unit (6) to receive the time delay signal so as to respond to the time delay signal to output an action signal and a wireless signal; the alarm module (5) receives the action signal to stop outputting the alarm signal in response to the action signal;
and the wireless prompting device (8) is wirelessly connected with the action transmitting unit (7) to receive the wireless signal so as to respond to the wireless signal to send out a prompting signal.
9. An element detector according to claim 8, wherein said action transmitter unit (7) comprises a second switch tube, a wireless transmitter and a third relay connected in series with the power supply in sequence, said third relay comprises a normally closed contact connected in series with the electric bell and the normally open contact of the first relay to the power supply, said action signal is represented by the opening of the normally closed contact of said third relay, and said wireless transmitter outputs said wireless signal when it is energized.
10. An element detector according to claim 9, wherein the wireless prompting device (8) comprises a wireless receiver and a buzzer and a third switch tube connected in series with a power supply, the wireless receiver is wirelessly connected with the wireless transmitter to receive the wireless signal and output a trigger signal in response to the wireless signal, the trigger end of the third switch tube is coupled with the wireless receiver to receive the trigger signal and is turned on in response to the trigger signal, and the prompting signal represents that the buzzer works and sounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418012.0U CN210742112U (en) | 2019-08-28 | 2019-08-28 | Element detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418012.0U CN210742112U (en) | 2019-08-28 | 2019-08-28 | Element detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210742112U true CN210742112U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921418012.0U Active CN210742112U (en) | 2019-08-28 | 2019-08-28 | Element detector |
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| Country | Link |
|---|---|
| CN (1) | CN210742112U (en) |
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2019
- 2019-08-28 CN CN201921418012.0U patent/CN210742112U/en active Active
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Effective date of registration: 20230731 Address after: Floor 1, No. 103, Building 6, Yungu Science and Technology Park, Matang Street, Yijiang District, Wuhu City, Anhui Province, 241000 Patentee after: Anhui Honglu Testing Technology Co.,Ltd. Address before: Room 201, Building A1, South Science and Technology Park, No. 129-3 Guanghua Road, Qinhuai District, Nanjing City, Jiangsu Province, 210000 Patentee before: NANJING KEJIE ANALYTICAL INSTRUMENT Co.,Ltd. |
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