CN202235328U - Contact temperature measurement device of temperature haptic display device - Google Patents
Contact temperature measurement device of temperature haptic display device Download PDFInfo
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- CN202235328U CN202235328U CN2011203272851U CN201120327285U CN202235328U CN 202235328 U CN202235328 U CN 202235328U CN 2011203272851 U CN2011203272851 U CN 2011203272851U CN 201120327285 U CN201120327285 U CN 201120327285U CN 202235328 U CN202235328 U CN 202235328U
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- internal ring
- temperature
- enamel
- contact
- fingerstall
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Abstract
The utility model provides a contact temperature measurement device of a temperature haptic display device. The contact temperature measurement device comprises a finger cot, the finger cot is provided with a contact hole, the contact hole is internally provided with a thermal resistor, the thermal resistor is connected with the finger cot, the thermal resistor is in a hexagonal star structure which is wrapped with a single enameled platinum wire and internally provided with a central circular ring, one end of the single enameled platinum wire is connected with two silver wires as outgoing lines, and the other end of the single enameled platinum wire is connected with a silver wire as an outgoing line.
Description
Technical field
This utility model relates to a kind of contact temperature measuring equipment of temperature tactile representation device; Contact surface temperature changing process when this device can be measured finger contact material object and temperature tactile representation device; And the actual temperature tactilely-perceptible that does not influence the experimenter is experienced, and belongs to field of measuring technique.
Background technology
Along with the develop rapidly of science and technology, all temps tactile representation device emerges in an endless stream.Be the precision that guarantees that the contact temperature is reproduced, need accurately to measure the contact temperature, and do not influence the real sensory experience of experimenter.
Existing thermometry is a lot, can be divided into contact and contactless two kinds usually by metering system.The characteristics of contacting temperature measurement method are that temperature element directly contacts measurand, carry out sufficient heat exchange between the two, reach thermal balance at last, and at this moment there is a kind of definite functional relationship in the temperature value of the value of a certain physical parameter of temperature-sensing element and measurand.This temp measuring method advantage is intuitive and reliable, and shortcoming is the distribution that temperature-sensing element influences the dut temperature field, and loose contact etc. also can bring measurement error; The characteristics of non-contact thermometry are that temperature-sensing element does not directly contact with measurand, but carry out heat exchange through radiation, and the non-contact thermometry thermal inertia is little, can reach signa, are convenient to measure the temperature or the fast-changing temperature of moving object.But because the emissivity, measurand that receive object be to the influence of other media such as the distance between the measuring device and flue dust, steam, the temperature measurement error fluctuation of this temp measuring method is bigger, and difficult the demarcation.If general temperature sensor placed on the temperature tactile representation device contact surface measure variations in temperature, this can bring unnecessary thermal resistance and thermal capacitance, and can have influence on experimenter's true sensory experience strongly.And on the other hand, contactless temp measuring method then can't measure contact temperature between the two across finger or temperature tactile representation device exactly.
The utility model content
This utility model provides the contact temperature measuring equipment of the strong temperature tactile representation device of a kind of capacity of resisting disturbance.
This utility model adopts following technical scheme:
The contact temperature measuring equipment of the described a kind of temperature tactile representation device of this utility model; Comprise: fingerstall; On fingerstall, be provided with contact hole, in contact hole, be provided with thermal resistance and thermal resistance is connected in fingerstall, said thermal resistance is by the hexagram structure that central circular is arranged in the single enamel-cover platinum filament coiled; One end of single enamel-cover platinum filament is connected with 2 filamentary silvers as lead-out wire, and the other end of single enamel-cover platinum filament is connected with 1 filamentary silver as lead-out wire.
The method for preparing of the contact temperature measuring equipment of the described a kind of temperature tactile representation device of this utility model, step is following:
Step 1 is got a holder, fingerstall and an enamel-cover platinum filament; Said holder comprises outer shroud; In outer shroud, be connected with first internal ring, second internal ring, the 3rd internal ring, the 4th internal ring, the 5th internal ring and the 6th internal ring; And first internal ring, second internal ring, the 3rd internal ring, the 4th internal ring, the 5th internal ring and the 6th internal ring present uniform distribution in outer shroud, on said fingerstall, offer contact hole;
Step 4 places holder in the contact hole of fingerstall, and the outer shroud of holder is connected on the contact hole of fingerstall.
The operation principle of this utility model device:
The utility model provides a kind of structural design of new thermal resistance; For reduce thermal resistance as far as possible to heat passage influence between finger and the temperature generator; Be designed to thermal resistance to have in a kind of the hexagram structure of central circular; Thereby can accurately measure the actual contact temperature of finger and temperature generator, and not influence experimenter's sense of touch sense of reality.
Thermal resistance commonly used has two kinds: RTD and copper resistance.Platinum is the manufacturing thermal resistance best material of generally acknowledging at present, and platinum resistance thermometer sensor, is the best a kind of temperature sensor of present thermometric repeatability, its stable performance, and its certainty of measurement is high, and measuring range is-200 ℃～850 ℃.In Oxidant, even at high temperature, the physics of platinum, chemical property are all very stable, and almost linear variation between its resistance and the temperature can be used as normal thermometer and high-precision temperature and measures.The copper thermistor measuring range is generally-50 ℃～150 ℃, is mainly used in the occasion that required precision is not high and temperature is lower.Very crucial any compared with copper, and the resistivity of platinum is higher relatively, and its resistance volume is less under the same resistance, and be just less to experimenter's touch sense influence.This utility model is selected resistive platinum wire for use, and the relation between its resistance value and the temperature is following:
When-200 ℃≤t≤0 ℃,
R(t)＝R
0[1+At+Bt
2+C(t-100)t
3]
When 0 ℃≤t≤850 ℃,
R(t)＝R
0[1+At+Bt
2]
Wherein, independent variable t is a temperature value, and R (t) is a platinum resistance thermometer sensor, t ℃ resistance, R
0Be the resistance of platinum resistance thermometer sensor, at 25 ℃, constant A=3.9083*10
-3℃
-1, constant B=-5.775*10
-7℃
-2, constant C=-4.27350*10
-12℃
-4
Real contact area between finger and temperature reproducing apparatus becomes because of individual, is the circle of diameter 10mm approximately usually.The area of platinum resistance thermometer sensor, structure should be less than this contact surface, so the platinum resistance thermometer sensor, structural design is in diameter is the circle of 9mm.The structure of the platinum resistance thermometer sensor, of this patent design is as shown in Figure 1, and the platinum filament total length is about 5118mm, uses diameter to make the lead-out wire place in circuit as the filamentary silver of 1mm at last.The platinum filament diameter is more little, and the length that needs is just short more, thereby platinum resistance thermometer sensor, volume and quality are just more little, and its thermal capacitance is also just more little, and then just more little to the heat passage influence between finger and the temperature reproducing apparatus.Select diameter for use is the platinum filament (not being coated with before the insullac) of 0.05mm for this reason, can calculate the resistance R of 25 ℃ of platinum resistance thermometer sensor,s
0=2.7644 Ω must coat insullac for preventing short circuit on platinum filament.
The design of fingerstall and thermal resistance holder must make things convenient for experimenter's finger manipulation, is measuring the true temperature tactilely-perceptible experience that does not influence the experimenter when contact temperature between finger and the temperature tactile representation device again.The thermal resistance holder is used for the resistive platinum wire structure is fixed on fingerstall, and has heat-insulating property, reduces surrounding to thermometric influence as far as possible, can be by polytetrafluoroethylmaterial material or ceramic material.Characteristics such as fingerstall can be processed with elastomeric material, has the heat conduction of being difficult for, and quality is soft satisfy the crooked flexibly requirement of finger.
Platinum resistance thermometer sensor, adopts bridge circuit to measure, and uses three-wire system connection method place in circuit, and three lines are drawn from the lead wire outlet of fingerstall top, insert peripheral circuit again.The control chip that peripheral circuit comprises known measurement bridge circuit, signal conditioning circuit and has the AD conversion.
Compared with prior art, the beneficial effect of this utility model is:
Existing temperature measuring equipment has contact and contactless two kinds.The contact temperature-measuring mode generally between finger and temperature reproducing apparatus a temperature sensor of placement (like critesistor) measure and contact variations in temperature; But this temperature sensor will certainly influence the conduction of heat between finger and the temperature generator, thereby influences experimenter's sensory experience.If temperature sensor is placed on finger with around the temperature generator contact surface, because the inhomogeneities in temperature field, measured contact temperature and physical presence deviation.And,, can only measure other position of departing from finger and temperature generator contact surface as adopting infrared temperature sensor for contactless temperature-measuring, so still there is deviation in the true temperature that the temperature that records not is a doigte to be arrived with the actual contact temperature.Based on above deficiency, this utility model proposes a kind of measuring device and method, can measure the actual contact temperature of finger and temperature reproducing apparatus exactly, and not influence the real sensory experience of experimenter.
1. platinum resistance thermometer sensor, is by the hexagram structure that central circular is arranged in the single enamel-cover platinum filament coiled, and thermal capacitance is little, and precision is high.Do not influence the heat transfer process of finger and temperature reproducing apparatus on the one hand, can accurately measure the actual contact temperature of finger and temperature generator; Finger fully contacts with the temperature reproducing apparatus on the other hand, can bring true temperature to experience to the experimenter.
2. holder is designed to the structure of outer shroud and six internal ring, can make the hexagram structure that central circular is arranged in the platinum filament formation on the one hand, can platinum resistance thermometer sensor, be fixed on the fingerstall again on the other hand.
3. this device can be used for measuring the temperature that contacts between finger and the temperature tactile representation device, brings real temperature sensory experience to the experimenter simultaneously.
Description of drawings
Fig. 1 is platinum resistance thermometer sensor, and the connection layout of holder in this utility model;
Fig. 2 is the fingerstall structure in this utility model;
Fig. 3 is the signal processing flow block diagram in this utility model.
Fig. 4 a, Fig. 4 b, Fig. 4 c, Fig. 4 d, Fig. 4 e are the flow charts of the said platinum resistance thermometer sensor, method for preparing of this utility model.
The specific embodiment
A kind of contact temperature measuring equipment of temperature tactile representation device; Comprise: fingerstall 1; On fingerstall 1, be provided with contact hole, in contact hole, be provided with thermal resistance 2 and thermal resistance 2 is connected in fingerstall 1, said thermal resistance 2 is by the hexagram structure that central circular is arranged in the single enamel-cover platinum filament coiled; One end of single enamel-cover platinum filament is connected with 2 filamentary silvers as lead-out wire, and the other end of single enamel-cover platinum filament is connected with 1 filamentary silver as lead-out wire.In the present embodiment; In contact hole, be provided with holder 3; Said thermal resistance 2 is connected with fingerstall 1 through holder 3; Said holder 3 comprises outer shroud 37; In outer shroud 37, be connected with first internal ring 31, second internal ring 32, the 3rd internal ring 33, the 4th internal ring 34, the 5th internal ring 35 and the 6th internal ring 36, and first internal ring 31, second internal ring 32, the 3rd internal ring 33, the 4th internal ring 34, the 5th internal ring 35 and the 6th internal ring 36 present uniform distribution in outer shroud 37, each angle in the said hexagram structure is hung on first internal ring 31, second internal ring 32, the 3rd internal ring 33, the 4th internal ring 34, the 5th internal ring 35 and the 6th internal ring 36; The diameter of enamel-cover platinum filament is 0.05mm, and length is 5118mm.
This utility model is pressed following preparation:
With reference to Fig. 4 a, Fig. 4 b, Fig. 4 c, Fig. 4 d, Fig. 4 e, adopt to comprise a, b, c, d, e five steps preparation, concrete steps are following:
Step 1 is got a holder 3, fingerstall 1 and an enamel-cover platinum filament; Said holder 3 comprises outer shroud 37; In outer shroud 37, be connected with first internal ring 31, second internal ring 32, the 3rd internal ring 33, the 4th internal ring 34, the 5th internal ring 35 and the 6th internal ring 36; And first internal ring 31, second internal ring 32, the 3rd internal ring 33, the 4th internal ring 34, the 5th internal ring 35 and the 6th internal ring 36 present uniform distribution in outer shroud 37, on said fingerstall 1, offer contact hole;
Step 4 places holder 3 in the contact hole of fingerstall 1, and the outer shroud 37 of holder 3 is connected on the contact hole of fingerstall 1.
In the present embodiment, when respectively the other end of enamel-cover platinum filament being passed central circular and the position in the formed cross point of central circular is adjusted, and the node that makes cross point and enamel-cover platinum filament be formed by knots tied is distributed on the central circular equably.
With reference to the accompanying drawings, the particular content of this utility model is made more detailed explanation:
Referring to Fig. 1, be the connection layout of the platinum resistance thermometer sensor, in this utility model 2 and holder 3, wherein platinum resistance thermometer sensor, 2 is that 51.18mm, diameter are platinum filament (be not coated with insullac before) institute's coiled of 0.05mm by a length.Implementation procedure: on the enamel-cover platinum filament, make a call to earlier a circular knot, diameter is 2mm, forms central circular 21; End with platinum filament places in first internal ring 31 again, and the other end of enamel-cover platinum filament is passed second internal ring 32 and is back to central circular, the more said other end is passed central circular for the first time; After this; The other end of enamel-cover platinum filament is passed the 3rd internal ring 33 and is back to central circular, the more said other end is passed central circular for the second time, by that analogy; Pass the 6th internal ring 36 and be back to central circular until the other end the enamel-cover platinum filament; Again the said other end is passed central circular the 5th time, at last the other end that passes the enamel-cover platinum filament of central circular for the 5th time is placed in first internal ring 31, the hexagram structure of central circular is arranged in forming one; The length of side of each wedge angle is 3.69mm, and placing the head and the tail two ends in first internal ring 31 is two terminals of platinum resistance thermometer sensor, 2.
Referring to Fig. 2, be 1 structure of the fingerstall in this utility model, wherein A is three filamentary silver lead-in wires, and B is the lead wire outlet on the fingerstall, and C is the elastic webbing on the fingerstall.Fingerstall 1 is a rubber, and the outer shroud 37 of holder 3 is used for linking to each other with fingerstall, and thermal resistance 2 is fixed on the fingerstall 1, and the elastic webbing C of fingerstall 1 upper end is used for fixing finger D and fingerstall 1.
Referring to Fig. 3, be the signal processing flow block diagram in this utility model, wherein D is finger, E is the temperature reproducing apparatus.Platinum resistance thermometer sensor, 2 adopts three-wire systems to insert bridge circuits, and three sectional area of wire and identical length etc. are to reduce the additive error that conductor resistance brings.Measuring circuit is used unbalanced bridge, and platinum resistance thermometer sensor, 2 is as an arm resistance of electric bridge, on the brachium pontis that all the other two are received the brachium pontis at platinum resistance thermometer sensor, 2 places respectively and are adjacent.The bridge circuit output voltage is after amplifier amplifies; Send in the ATmega16 single-chip microcomputer that self has 10 successive approximation A/D translation functions; After computing, obtain the current resistance of platinum resistance thermometer sensor, 2; Relational expression by platinum filament resistance value and temperature calculates current temperature value again, and on liquid crystal display, shows in real time, is uploaded to host computer simultaneously.Like this, with between finger in the whole temperature tactilely-perceptible experimentation and the temperature reproducing apparatus or with material object between contact the temperature perfect measurement and note.
Referring to Fig. 4 a, Fig. 4 b, Fig. 4 c, Fig. 4 d, Fig. 4 e, be the flow chart of said platinum resistance thermometer sensor, 2 method for preparinies of this utility model, wherein a figure is formed by knots tied central circular 21 for the enamel-cover platinum filament, and diameter is 2mm; B figure is that the end with the enamel-cover platinum filament places in first internal ring, and the other end of enamel-cover platinum filament is passed second internal ring and is back to central circular, the more said other end is passed the structure that forms after the central circular for the first time; C figure is that the other end with the enamel-cover platinum filament passes the 3rd internal ring and is back to central circular, the more said other end is passed the structure that forms after the central circular for the second time; D figure is for by that analogy; Pass the 6th internal ring and be back to central circular until the other end the enamel-cover platinum filament; Again the said other end is passed central circular the 5th time, at last the other end that passes the enamel-cover platinum filament of central circular for the 5th time is placed the structure that forms in first internal ring; E figure is that the position in and the formed cross point of central circular when passing central circular of the other end with the enamel-cover platinum filament is adjusted, and the node that makes cross point and enamel-cover platinum filament be formed by knots tied is distributed in the structure that the back forms on the central circular equably.
Claims (3)
1. the contact temperature measuring equipment of a temperature tactile representation device; Comprise: fingerstall (1); It is characterized in that; On fingerstall (1), be provided with contact hole, in contact hole, be provided with thermal resistance (2) and thermal resistance (2) is connected in fingerstall (1), said thermal resistance (2) is by the hexagram structure that central circular is arranged in the single enamel-cover platinum filament coiled; One end of single enamel-cover platinum filament is connected with 2 filamentary silvers as lead-out wire, and the other end of single enamel-cover platinum filament is connected with 1 filamentary silver as lead-out wire.
2. the contact temperature measuring equipment of temperature tactile representation device according to claim 1; It is characterized in that; In contact hole, be provided with holder (3); Said thermal resistance (2) is connected with fingerstall (1) through holder (3); Said holder (3) comprises outer shroud (37); In outer shroud (37), be connected with first internal ring (31), second internal ring (32), the 3rd internal ring (33), the 4th internal ring (34), the 5th internal ring (35) and the 6th internal ring (36); And first internal ring (31), second internal ring (32), the 3rd internal ring (33), the 4th internal ring (34), the 5th internal ring (35) and the 6th internal ring (36) present uniform distribution in outer shroud (37), and each angle in the said hexagram structure is hung on first internal ring (31), second internal ring (32), the 3rd internal ring (33), the 4th internal ring (34), the 5th internal ring (35) and the 6th internal ring (36).
3. the contact temperature measuring equipment of temperature tactile representation device according to claim 1 and 2 is characterized in that, the diameter of enamel-cover platinum filament is 0.05mm, and length is 51.18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203272851U CN202235328U (en) | 2011-09-01 | 2011-09-01 | Contact temperature measurement device of temperature haptic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203272851U CN202235328U (en) | 2011-09-01 | 2011-09-01 | Contact temperature measurement device of temperature haptic display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202235328U true CN202235328U (en) | 2012-05-30 |
Family
ID=46096645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203272851U Withdrawn - After Issue CN202235328U (en) | 2011-09-01 | 2011-09-01 | Contact temperature measurement device of temperature haptic display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202235328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415875A (en) * | 2011-09-01 | 2012-04-18 | 东南大学 | Contact temperature measuring device of temperature touch representing device and manufacturing method for contact temperature measuring device |
-
2011
- 2011-09-01 CN CN2011203272851U patent/CN202235328U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415875A (en) * | 2011-09-01 | 2012-04-18 | 东南大学 | Contact temperature measuring device of temperature touch representing device and manufacturing method for contact temperature measuring device |
| CN102415875B (en) * | 2011-09-01 | 2013-06-26 | 东南大学 | Contact temperature measuring device of temperature touch representing device and manufacturing method for contact temperature measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130626 |
|
| RGAV | Abandon patent right to avoid regrant |