CN211013298U - Infrared thermometer capable of realizing measurement mode switching by utilizing Hall element - Google Patents
Infrared thermometer capable of realizing measurement mode switching by utilizing Hall element Download PDFInfo
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- CN211013298U CN211013298U CN201921901097.8U CN201921901097U CN211013298U CN 211013298 U CN211013298 U CN 211013298U CN 201921901097 U CN201921901097 U CN 201921901097U CN 211013298 U CN211013298 U CN 211013298U
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- infrared thermometer
- hall element
- temperature
- thermometer body
- infrared
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- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 210000001061 forehead Anatomy 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000009529 body temperature measurement Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000011358 absorbing material Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000036760 body temperature Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0003—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiant heat transfer of samples, e.g. emittance meter
- G01J5/0011—Ear thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/20—Clinical contact thermometers for use with humans or animals
- G01K13/223—Infrared clinical thermometers, e.g. tympanic
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/90—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The utility model discloses an infrared thermometer which utilizes a Hall element to realize the switching of measurement modes, which relates to the technical field of infrared thermometers and comprises an infrared thermometer body and a detachable rotary cover cap arranged on the measurement end part of the infrared thermometer body; the top of the infrared thermometer body is provided with a temperature measuring probe carrying a temperature measuring element, a Hall element is fixedly arranged in the temperature measuring probe, and one end in the rotary cap is embedded with an annular magnet; the utility model discloses use hall element to realize the measurement mode and switch, need not to install mechanical change over switch, simplified structural design, avoided because of mechanical change over switch mounting position deviation or mechanical change over switch contact failure cause can't switch over the measurement mode; the function of the mechanical change-over switch is realized by applying the magnetic field detection technology, so that the working stability is improved, and the service life is greatly prolonged.
Description
Technical Field
The utility model relates to an infrared thermometer technical field specifically is an infrared thermometer who utilizes hall element to realize measuring mode switching.
Background
Body temperature measurement is an important part in medical application to judge whether a fever phenomenon occurs, and is divided into axillary temperature, ear temperature, forehead temperature, sublingual temperature, anal temperature and the like, wherein the axillary temperature, the sublingual temperature and the anal temperature are measured by a mercury thermometer or an electronic thermometer. The infrared thermometer can quickly measure the ear temperature and forehead temperature of a human body by using an infrared temperature measuring technology. The mercury thermometer and the electronic thermometer need longer time for measurement, the mercury thermometer is fragile and unsafe, and the infrared thermometer can complete measurement within 1 second, so that the measurement is rapid, accurate and safe.
When the infrared thermometer is used for measuring the ear temperature, the probe is inserted into the auditory canal for measurement; when measuring the forehead temperature, the conversion cover is covered, and the forehead temperature is converted into a forehead temperature measurement mode, and the forehead temperature is close to the forehead for measurement.
The existing infrared thermometer is an ear thermometer and can only measure the ear temperature; or be the forehead temperature rifle, can only measure the forehead temperature, the current dual mode infrared ray clinical thermometer mode switch all realizes through mechanical change over switch, and the structure is complicated, and easy bad contact can't switch over the measuring mode. To this end, an infrared thermometer using a hall element to switch the measurement mode is proposed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the existing defects, and to provide an infrared thermometer which utilizes a Hall element to realize the switching of the measurement mode, which can effectively solve the problem that the existing infrared thermometer proposed in the background technology is either an ear thermometer and can only measure the ear temperature; or be the forehead temperature rifle, can only measure the forehead temperature, the current dual mode infrared ray clinical thermometer mode switch all realizes through mechanical change over switch, and the structure is complicated, and easy bad contact can't switch over the problem of measuring the mode.
In order to achieve the above object, the utility model provides a following technical scheme: an infrared thermometer which realizes measurement mode switching by utilizing a Hall element comprises an infrared thermometer body and a detachable rotary cover cap arranged on the measurement end part of the infrared thermometer body;
the temperature measuring device comprises an infrared thermometer body, and is characterized in that a temperature measuring probe carrying a temperature measuring element is arranged at the top of the infrared thermometer body, a temperature display screen convenient for watching a body temperature value is embedded in one side position of the middle part of the infrared thermometer body, a temperature measuring switch is embedded in the other side position of the middle part of the infrared thermometer body, a battery used for storing electric energy is fixedly installed at the bottom end of the interior of the infrared thermometer body, a circuit board is fixedly installed at a position, close to the upper part of the battery, of the interior of the infrared thermometer body, current is transmitted between the battery and the circuit board through a connecting lead, a Hall element is fixedly installed in the temperature measuring probe, a base is fixedly installed at the top end of the interior of the infrared thermometer body, a transmission end of the Hall element is;
one end of the inner part of the rotary cover cap is embedded with an annular magnet.
As the utility model discloses an optimal technical scheme, infrared thermometer body is the component of a polyethylene material, the outer wall coating of infrared thermometer body has anti-skidding material, and is provided with sound absorbing material on the inner wall of infrared thermometer body, and sound absorbing material is the component of a glass fiber material.
As an optimized technical scheme of the utility model, hall element is a CMOS micropower electric component, and hall element embeds has chopper stabilization circuit and magnetic field detection circuit.
As a preferred technical scheme of the utility model, be two-way electric connection between battery and the connecting lead, the output of connecting lead and temperature measurement switch's input electric connection, temperature measurement switch's output and the input electric connection of circuit board, be two-way electric connection between circuit board and the hall element and between circuit board and the temperature display screen.
As a preferred technical scheme of the utility model, there is magnetic field intensity when being in connected state between rotatory bonnet and the temperature probe, when magnetic field intensity was greater than operating point BOP, the output was the low level, and the volume temperature measurement mode is opened to the output promptly, the state of magnetic field intensity is for disappearing or being less than release point BRP when being in the off-state between rotatory bonnet and the temperature probe, and the output is the high flat electricity, closes for ear temperature measurement mode promptly for the output.
As a preferred technical solution of the present invention, the magnetic field detection circuit is composed of a capacitor C14, a capacitor C15, a resistor R8, and an HA L248 all-pole hall switch, and the capacitor C14, the capacitor C15, the resistor R8, and the HA L248 all-pole hall switch are connected in parallel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the Hall element is used for realizing the switching of the measurement mode, a mechanical change-over switch is not required to be installed, the structural design is simplified, and the problem that the measurement mode cannot be switched due to the installation position deviation of the mechanical change-over switch or poor contact of the mechanical change-over switch is avoided;
2. the utility model discloses use magnetic field detection technique to realize mechanical change over switch's function, not only improved job stabilization nature to life has been prolonged greatly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic external structural view of the present invention;
fig. 3 is a circuit diagram of the hall element of the present invention;
fig. 4 is a circuit diagram of the magnetic field detection circuit of the present invention.
In the figure: 1. an infrared thermometer body; 2. rotating the cap; 3. a temperature measuring probe; 4. a Hall element; 5. a base; 6. a circuit board; 7. connecting a lead; 8. a battery; 9. a temperature measuring switch; 10. a temperature display screen; 11. a magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an infrared thermometer which realizes measurement mode switching by utilizing a Hall element comprises an infrared thermometer body 1 and a detachable rotary cover cap 2 arranged on the measurement end part of the infrared thermometer body 1;
the top of the infrared thermometer body 1 is provided with a temperature measuring probe 3 carrying a temperature measuring element, one side position of the middle part of the infrared thermometer body 1 is embedded with a temperature display screen 10 convenient for watching a body temperature value, the other side position of the middle part of the infrared thermometer body 1 is embedded with a temperature measuring switch 9, the bottom end of the inside of the infrared thermometer body 1 is fixedly provided with a battery 8 used for storing electric energy, the inside of the infrared thermometer body 1 is fixedly provided with a circuit board 6 at a position close to the upper part of the battery 8, the battery 8 and the circuit board 6 transmit current through a connecting lead 7, the inside of the temperature measuring probe 3 is fixedly provided with a Hall element 4, the top end of the inside of the infrared thermometer body 1 is fixedly provided with a base 5, the transmission end of the Hall element 4 is embedded in the base 5, and the output end of the base;
a magnet 11 having a ring shape is embedded in one end of the inside of the rotary cap 2.
Infrared clinical thermometer body 1 is the component of a polyethylene material, and the outer wall coating of infrared clinical thermometer body 1 has anti-skidding material, and is provided with sound absorbing material on infrared clinical thermometer body 1's the inner wall, and sound absorbing material is the component of a glass fiber material.
The battery 8 is in bidirectional electrical connection with the connecting lead 7, the output end of the connecting lead 7 is in electrical connection with the input end of the temperature measuring switch 9, the output end of the temperature measuring switch 9 is in electrical connection with the input end of the circuit board 6, and the circuit board 6 is in bidirectional electrical connection with the Hall element 4 and the circuit board 6 is in bidirectional electrical connection with the temperature display screen 10.
There is magnetic field intensity when being in connected state between rotatory cap 2 and the temperature probe 3, when magnetic field intensity is greater than operating point BOP, the output is the low level, output opens to the forehead temperature measurement mode promptly, the state of magnetic field intensity is for disappearing or being less than release point BRP when being in the off-state between rotatory cap 2 and the temperature probe 3, the output is the high level electricity, close for the output promptly for ear temperature measurement mode, magnetic field operating point and release point have confirmed the hysteresis lag interval of hall element, even under the condition that has mechanical vibration and electric noise, also can the switching output.
Referring to fig. 3, the hall element 4 is a CMOS micropower electrical element, and a chopper stabilization circuit and a magnetic field detection circuit are built in the hall element 4, so that dynamic response pulse compensation can be achieved, bias or pulse voltage caused by temperature or physical pressure in the hall element can be reduced, and the working stability of the chip can be improved.
Referring to fig. 4, the magnetic field detection circuit is composed of a capacitor C14, a capacitor C15, a resistor R8, and an HA L248 all-pole hall switch, and the capacitor C14, the capacitor C15, the resistor R8, and the HA L248 all-pole hall switch are all connected in parallel.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an utilize hall element to realize infrared thermometer that measurement mode switches, includes infrared thermometer body (1) and sets up rotatory cap (2) of detachable on infrared thermometer body (1) measurement tip, its characterized in that:
the temperature measuring device is characterized in that a temperature measuring probe (3) carrying a temperature measuring element is arranged at the top of the infrared thermometer body (1), a temperature display screen (10) convenient for watching a body temperature value is embedded in one side position of the middle of the infrared thermometer body (1), a temperature measuring switch (9) is embedded in the other side position of the middle of the infrared thermometer body (1), a battery (8) used for storing electric energy is fixedly installed at the bottom end of the interior of the infrared thermometer body (1), a circuit board (6) is fixedly installed at the upper position of the interior of the infrared thermometer body (1) close to the battery (8), current is transmitted between the battery (8) and the circuit board (6) through a connecting lead (7), a Hall element (4) is fixedly installed in the interior of the temperature measuring probe (3), and a base (5) is fixedly installed at the top end of the interior of the infrared thermometer body (1), the transmission end of the Hall element (4) is embedded in the base (5), and the output end of the base (5) is connected with the circuit board (6);
one end of the inner part of the rotary cover cap (2) is embedded with a ring-shaped magnet (11).
2. The infrared thermometer with Hall element for switching measurement mode as claimed in claim 1, wherein: infrared clinical thermometer body (1) is the component of a polyethylene material, the outer wall coating of infrared clinical thermometer body (1) has non-slip material, and is provided with sound absorbing material on the inner wall of infrared clinical thermometer body (1), and sound absorbing material is the component of a glass fiber material.
3. The infrared thermometer with Hall element for switching measurement mode as claimed in claim 1, wherein: the Hall element (4) is a CMOS micro-power electric element, and a chopper stabilization circuit and a magnetic field detection circuit are arranged in the Hall element (4).
4. The infrared thermometer with Hall element for switching measurement mode as claimed in claim 1, wherein: the temperature measurement circuit is characterized in that the battery (8) is in bidirectional electric connection with the connecting lead (7), the output end of the connecting lead (7) is in electric connection with the input end of the temperature measurement switch (9), the output end of the temperature measurement switch (9) is in electric connection with the input end of the circuit board (6), and the circuit board (6) is in bidirectional electric connection with the Hall element (4) and the circuit board (6) is in bidirectional electric connection with the temperature display screen (10).
5. The infrared thermometer with Hall element for switching measurement mode as claimed in claim 1, wherein: there is magnetic field intensity when being in connected state between rotatory bonnet (2) and temperature probe (3), when magnetic field intensity was greater than operating point BOP, the output was the low level, and the output is opened promptly and is measured the mode for the forehead temperature, the state of magnetic field intensity is for disappearing or being less than release point BRP when being in the off-state between rotatory bonnet (2) and temperature probe (3), and the output is the high flat electricity, closes promptly for the output and measures the mode for the ear temperature.
6. The infrared thermometer with Hall elements for switching measurement modes as claimed in claim 3, wherein said magnetic field detection circuit comprises a C14 capacitor, a C15 capacitor, a R8 resistor and a HA L248 all-pole Hall switch, all of which are connected in parallel among a C14 capacitor, a C15 capacitor, a R8 resistor and a HA L248 all-pole Hall switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020685 | 2019-01-07 | ||
| CN2019200206854 | 2019-01-07 |
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| Publication Number | Publication Date |
|---|---|
| CN211013298U true CN211013298U (en) | 2020-07-14 |
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| CN201911076360.9A Pending CN110617905A (en) | 2019-01-07 | 2019-11-06 | Infrared thermometer capable of realizing measurement mode switching by utilizing Hall element |
| CN201921901097.8U Active CN211013298U (en) | 2019-01-07 | 2019-11-06 | Infrared thermometer capable of realizing measurement mode switching by utilizing Hall element |
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| CN201911076360.9A Pending CN110617905A (en) | 2019-01-07 | 2019-11-06 | Infrared thermometer capable of realizing measurement mode switching by utilizing Hall element |
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| CN (2) | CN110617905A (en) |
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- 2019-11-06 CN CN201911076360.9A patent/CN110617905A/en active Pending
- 2019-11-06 CN CN201921901097.8U patent/CN211013298U/en active Active
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| CN110617905A (en) | 2019-12-27 |
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