CN203120265U - Low-power spectroscopic lamp - Google Patents
Low-power spectroscopic lamp Download PDFInfo
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- CN203120265U CN203120265U CN 201320059387 CN201320059387U CN203120265U CN 203120265 U CN203120265 U CN 203120265U CN 201320059387 CN201320059387 CN 201320059387 CN 201320059387 U CN201320059387 U CN 201320059387U CN 203120265 U CN203120265 U CN 203120265U
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- spectroscopic lamp
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- capacitor
- bulb
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Abstract
The utility model discloses a lower-power spectroscopic lamp, belonging to the field of atom frequency marking. The spectroscopic lamp comprises a bulb, a radio frequency oscillation circuit and a constant temperature device, wherein the radio frequency oscillation circuit comprises a filter circuit, an amplification circuit and a oscillation frequency selecting circuit, the amplification circuit comprises a transistor T, and a resistor R1, a resistor R2 and a positive temperature coefficient resistor Rp connected between the base electrode and the collector electrode of the transistor T, one end of the resistor R2 is connected with the base electrode of the transistor T, the other end of the resistor R2 is connected with the collector electrode of the transistor T via the resistor R1, and the positive temperature coefficient resistor Rp is connected with two ends of the R2 in parallel and is arranged in the constant temperature device. According to the utility model, the positive temperature coefficient resistor is added to the oscillation frequency selecting circuit, so that in a starting stage of the spectroscopic lamp, excitation power is very high, and the spectroscopic lamp can be rapidly started, and during normal work of the spectroscopic lamp, excitation power is very low to ensure lower power consumption.
Description
Technical field
The utility model relates to the atomic frequency standard field, particularly a kind of low-power consumption spectroscopic lamp.
Background technology
Spectroscopic lamp refers to give off the discharge lamp of certain elemental characteristic spectral line.
Be example with the spectroscopic lamp in the Rb atom frequency marking, the bulb of spectroscopic lamp is used ball-type glass envelope, the about 10-15mm of diameter always.Except being filled with the metal rubidium, be filled with also that excitation potential is low, the inactive build-up of luminance gas of chemical property in the bulb, Kr gas commonly used or Ar gas, bulb is placed in the oscillator coil.
When bulb started, the high frequency highfield that oscillator coil produces made in the bulb ionized inert gas luminous.Under the effect of high frequency magnetic field, ion is done the high-speed screw motion in bulb.When the temperature in the bulb rises to constant temperature point about 120 ℃ under the effect of thermostat and plasma heating effect, metal rubidium in the bulb forms the rubidium steam, the rubidium atom of the inert gas ion of high-speed motion and vaporous bumps, make the rubidium atom obtain energy and enter high level, transit to low-lying level from high level then, discharge photon.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
When spectroscopic lamp starts, because inert gas need provide bigger exciting power, so exciting power is very high, but after operate as normal, this excessive exciting power just seems unnecessary, causes high power consumption in the bulb from the normality to the state of ionization.
The utility model content
In order to solve the high problem of spectroscopic lamp power consumption in the prior art, the utility model embodiment provides a kind of low-power consumption spectroscopic lamp.Described technical scheme is as follows:
The utility model embodiment provides a kind of low-power consumption spectroscopic lamp, described spectroscopic lamp comprises: bulb, strength circuit and thermostat, described strength circuit comprises filter circuit, amplifying circuit and vibration frequency selection circuit, described amplifying circuit is connected with described vibration frequency selection circuit with described filter circuit respectively, described vibration frequency selection circuit comprises the oscillator coil L1 that is located in the described thermostat, described bulb is located among the described oscillator coil L1, described amplifying circuit comprises transistor T, and the base stage and the resistance R between the collector electrode 1 that are connected described transistor T, resistance R 2 and positive temperature coefficient resistor Rp, one end of described resistance R 2 is connected with the base stage of described transistor T, the other end of described resistance R 2 is connected with the collector electrode of described transistor T by described resistance R 1, described positive temperature coefficient resistor Rp is in parallel with described resistance R 2 two ends, and described positive temperature coefficient resistor Rp is located in the thermostat.
Wherein, described vibration frequency selection circuit also comprises: capacitor C 1, capacitor C 2, capacitor C 3 and inductance L 2, described capacitor C 2 is connected between the emitter and base stage of described transistor T, one end of described inductance L 2 is connected with the emitter of described transistor T, the other end ground connection of described inductance L 2, one end of described capacitor C 1 is connected with the base stage of described transistor T, and the other end of described capacitor C 1 is successively by described oscillator coil L1 and described capacitor C 3 ground connection.
Wherein, described thermostat comprises constant temperature sleeve and constant temperature control circuit, and described constant temperature control circuit is electrically connected with described constant temperature sleeve.
Further, described spectroscopic lamp also comprises the filter of being located on the luminous light path of described bulb.
Wherein, described filter is the transparent plastic filter.
Further, described spectroscopic lamp also wraps the lens of being located on the luminous light path of described bulb, and described filter is located between described lens and the described bulb.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By adding positive temperature coefficient resistor at the vibration frequency selection circuit, the startup stage of making spectroscopic lamp, exciting power is very big, can start spectroscopic lamp rapidly; And when operate as normal, exciting power is very little, thereby has guaranteed lower power consumption.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the low-power consumption spectroscopic lamp that provides of the utility model embodiment;
Fig. 2 is the circuit diagram of the low-power consumption spectroscopic lamp that provides of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model execution mode is described in further detail.
Embodiment
The utility model embodiment provides a kind of low-power consumption spectroscopic lamp, and referring to Fig. 1, this spectroscopic lamp comprises: bulb 1, strength circuit 2 and thermostat 3.Referring to Fig. 2, strength circuit 2 comprises filter circuit 21, amplifying circuit 22 and vibration frequency selection circuit 23, and amplifying circuit 22 is connected with vibration frequency selection circuit 23 with filter circuit 21 respectively; Vibration frequency selection circuit 23 comprises the oscillator coil L1 that is located in the thermostat 3, bulb 1 is located among the oscillator coil L1, amplifying circuit 22 comprises transistor T, is connected base stage and the resistance R between the collector electrode 1, resistance R 2 and the positive temperature coefficient resistor Rp of transistor T, one end of resistance R 2 is connected with the base stage of transistor T, the other end of resistance R 2 is connected with the collector electrode of transistor T by resistance R 1, positive temperature coefficient resistor Rp is in parallel with resistance R 2 two ends, and positive temperature coefficient resistor Rp is located in the thermostat 3.
Further, vibration frequency selection circuit 23 also comprises: capacitor C 1, capacitor C 2, capacitor C 3 and inductance L 2, capacitor C 2 is connected between the emitter and base stage of transistor T, one end of inductance L 2 is connected with the emitter of transistor T, the other end ground connection of inductance L 2, one end of capacitor C 1 is connected with the base stage of transistor T, and the other end of capacitor C 1 is successively by oscillator coil L1 and capacitor C 3 ground connection.
Further, filter circuit 21 comprises filter capacitor C4, and the end of filter capacitor C4 connects power supply Ucc, the other end ground connection of filter capacitor C4.
Wherein, thermostat 3 comprises constant temperature sleeve 31 and constant temperature control circuit 32, and constant temperature control circuit 32 is electrically connected with constant temperature sleeve 31.
Positive temperature coefficient resistor Rp is by PTC(Positive Temperature Coefficient, positive temperature coefficient) material is made, positive temperature coefficient resistor Rp is placed constant temperature sleeve 31, and positive temperature coefficient resistor Rp is both as temperature sensor, again as the Current Control performer.The resistance value of positive temperature coefficient resistor Rp is about about 20 ohm at normal temperatures, and after spectroscopic lamp enters constant temperature point about 120 ℃, the resistance value of positive temperature coefficient resistor Rp will rise to tens kilohms rapidly.This just makes spectroscopic lamp can start rapidly in the build-up of luminance stage, keeps lower power consumption in normal work stage.
Referring to Fig. 1, spectroscopic lamp also comprises the filter of being located on the bulb 1 luminous light path 4.Between the integrated filtering resonance bubble of bulb 1 and cavity bubble system, place this filter 4, the light decay that spectroscopic lamp sends is reduced to the light intensity that needs.This filter 4 can adopt transparent plastic, because transparent plastic compares book, can insert in the spectroscopic lamp easily, and because the monolithic transparent plastic is smaller to the attenuation rate of light, therefore can compare meticulous adjusting to light.Common transparent material has Merlon, poly-first amylene, polysulfones polymethyl methacrylate, polystyrene etc., and these transparent plastics all have certain resistance to wear, and chemical-resistant reagent.
Referring to Fig. 1, spectroscopic lamp also wraps the lens of being located on the bulb 1 luminous light path 5, and filter 4 is located between lens 5 and the bulb 1, and the light that spectroscopic lamp is sent becomes directional light, to improve the utilance of light.
Spectroscopic lamp is in room temperature state, and the resistance of Rp is very little, and the transistor T base current is very big, so the transistor T exciting current is very big, and spectroscopic lamp can obtain very high exciting power, thereby starts spectroscopic lamp work fast.Along with the continuous rising of temperature in the spectroscopic lamp thermostat, the resistance of Rp rises, and the transistor T base current reduces rapidly, thereby exciting current is also reduced rapidly, the constant temperature point until about 120 ℃.Compare with conventional art, the spectroscopic lamp that present embodiment provides has following effect: (1) because spectroscopic lamp the startup stage, the Rp resistance is very little, and exciting current is very big, exciting power is very big, can start spectroscopic lamp work rapidly.(2) after spectroscopic lamp arrived constant temperature point, the Rp resistance was very big, and exciting current is very little, and the exciting power of keeping the spectroscopic lamp operate as normal is very little, thereby has guaranteed lower power consumption.
Under common condition, the driving frequency of spectroscopic lamp heals, and height more is conducive to starter gas and rubidium is luminous, but for the strength circuit, the too high meeting of driving frequency causes oscillation amplitude to descend, and is unfavorable for that on the contrary starter gas and rubidium are luminous.Therefore, the operating frequency of our selection is roughly near 110MHz.
The utility model embodiment is by adding positive temperature coefficient resistor at the vibration frequency selection circuit, and the startup stage of making spectroscopic lamp, exciting power is very big, can start spectroscopic lamp rapidly; And when operate as normal, exciting power is very little, thereby has guaranteed lower power consumption.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. low-power consumption spectroscopic lamp, described spectroscopic lamp comprises: bulb (1), strength circuit (2) and thermostat (3), described strength circuit (2) comprises filter circuit (21), amplifying circuit (22) and vibration frequency selection circuit (23), described amplifying circuit (22) is connected with described vibration frequency selection circuit (23) with described filter circuit (21) respectively, described vibration frequency selection circuit (23) comprises the oscillator coil L1 that is located in the described thermostat (3), described bulb (1) is located among the described oscillator coil L1, described amplifying circuit (22) comprises transistor T, and the base stage and the resistance R between the collector electrode 1 that are connected described transistor T
It is characterized in that, described amplifying circuit (22) also comprises: resistance R 2 and positive temperature coefficient resistor Rp, one end of described resistance R 2 is connected with the base stage of described transistor T, the other end of described resistance R 2 is connected with the collector electrode of described transistor T by described resistance R 1, described positive temperature coefficient resistor Rp is in parallel with described resistance R 2 two ends, and described positive temperature coefficient resistor Rp is located in the thermostat (3).
2. spectroscopic lamp according to claim 1, it is characterized in that, described vibration frequency selection circuit (23) also comprises: capacitor C 1, capacitor C 2, capacitor C 3 and inductance L 2, described capacitor C 2 is connected between the emitter and base stage of described transistor T, one end of described inductance L 2 is connected with the emitter of described transistor T, the other end ground connection of described inductance L 2, one end of described capacitor C 1 is connected with the base stage of described transistor T, and the other end of described capacitor C 1 is successively by described oscillator coil L1 and described capacitor C 3 ground connection.
3. spectroscopic lamp according to claim 1 is characterized in that, described thermostat (3) comprises constant temperature sleeve (31) and constant temperature control circuit (32), and described constant temperature control circuit (32) is electrically connected with described constant temperature sleeve (31).
4. spectroscopic lamp according to claim 1 is characterized in that, described spectroscopic lamp also comprises the filter of being located on the luminous light path of described bulb (1) (4).
5. spectroscopic lamp according to claim 4 is characterized in that, described filter (4) is the transparent plastic filter.
6. spectroscopic lamp according to claim 4 is characterized in that, described spectroscopic lamp also wraps the lens of being located on the luminous light path of described bulb (1) (5), and described filter (4) is located between described lens (5) and the described bulb (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059387 CN203120265U (en) | 2013-02-01 | 2013-02-01 | Low-power spectroscopic lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059387 CN203120265U (en) | 2013-02-01 | 2013-02-01 | Low-power spectroscopic lamp |
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| Publication Number | Publication Date |
|---|---|
| CN203120265U true CN203120265U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059387 Expired - Fee Related CN203120265U (en) | 2013-02-01 | 2013-02-01 | Low-power spectroscopic lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374835A (en) * | 2016-10-14 | 2017-02-01 | 北京无线电计量测试研究所 | Constant-current ionization excitation circuit and control method |
-
2013
- 2013-02-01 CN CN 201320059387 patent/CN203120265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374835A (en) * | 2016-10-14 | 2017-02-01 | 北京无线电计量测试研究所 | Constant-current ionization excitation circuit and control method |
| CN106374835B (en) * | 2016-10-14 | 2019-02-15 | 北京无线电计量测试研究所 | A kind of constant current ionization energizing circuit and control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140201 |