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验钞灯和紫外线灯的区别

作者:上海峰志仪器 时间:2021-04-10 22:45:09浏览12378 次

信息摘要:

验钞灯使用的是紫外线荧光灯管或是LED灯,盯着看久了紫外线肯定会对眼球内晶体、视网膜等造成损伤, 使用对紫外线验钞灯工作时,在进行操作时都应该认真防护。不要让紫外线直接照射到皮肤和眼睛,不要长时间盯着灯看,不要用紫外线手电对着人体照射,更不要长时间使用。

验钞灯和紫外线灯的区别

zui近小编发现很多朋友到我们上海峰志仪器有限公司紫外线探伤灯网站上找验钞灯,或者是咨询“紫外线灯与验钞灯的区别”,在此小编为你整理并说明:
定义:紫外线灯是一种能发射紫外线灯具,波长在10~400nm;验钞灯是利用紫外线检查钞票真伪的灯具,波长为365nm/395nm,一般检查人民币真伪用395nm的紫外线验钞灯就可以了,365nm紫外线验钞灯用做检验外币。从定义上看,我们知道紫外线灯的范围大于验钞灯的范围,验钞灯只是紫外线灯的一种。

验钞灯使用的是紫外线荧光灯管或是LED灯,盯着看久了紫外线肯定会对眼球内晶体、视网膜等造成损伤, 使用对紫外线验钞灯工作时,在进行操作时都应该认真防护。不要让紫外线直接照射到皮肤和眼睛,不要长时间盯着灯看,不要用紫外线手电对着人体照射,更不要长时间使用。

紫外线对人体的伤害与紫外线的辐射强度和辐射时间成正比,即照射剂量越大,对人的伤害越严重。人体受到短时间照射即会产生皮肤泛红、搔痒、起过敏性的丘疹;长时间照射会使皮肤组织受到严重的伤害,足够剂量的照射甚至会造成皮肤的癌变。紫外线照射到人眼也非常有害,短时较大剂量照射会使眼睛红肿、流泪、睁不开眼,长期受到紫外线辐射会导致白内障甚至致盲。 另外,长时间开着紫外线灯你会闻到一股味道,对了,那就是臭氧的味道,紫外线辐射时会使空气中的氧气生成臭氧使人产生头晕、恶心的不良反应。

但是在shajun方面,紫外线为人类作出了巨大的贡献。 很长时间以来,利用253.7nm波长紫外线对病房、制药企业等其它的室内环境及器具物品进行已经是较为普遍而有效的一种方法。 另外,提示大家不要等灯管不亮了,再换灯管。没发现使用一段时间验钞能力就下降了吗?这是因为紫外线灯属于气体放电灯,它与照明用的荧光灯(管灯)的放电机理没什么区别,所不同的是它的灯管是用石英玻璃或透紫外玻璃制成,而不是用普通玻璃,灯管内壁也不涂荧光粉。它可以辐射出一定强度的253.7nm波长的紫外线。 如果是LED灯除外,因为LED的光衰比较慢。

紫外线灯也是有寿命的,随着使用时间的延长,紫外线的有效辐射会不断的降低,发现验钞功效降低时,就应该更换灯管了,不应该等到坏了再换。 说了这么多,其实只要正确使用,还是可以避免伤害的。毕竟它的功率和波长和紫外线灯还是有很大区别的,也提醒大家不要让家里的宝宝玩验钞灯哦,孩子的眼睛是很脆弱的。想要了解更多紫外线灯的危害等光污染小知识,欢迎登陆上海峰志仪器有限公司网站。


紫外线灯常常按照它的波长范围,做不同的应用,我们生活中应用zui广泛的是长波紫外线灯(320~420nm),验钞灯也是长波紫外线灯的一种应用,长波紫外线灯因为波长段和制作工艺不同,被应用到真伪验证、验钞、固话、、探伤、捡漏、实验室观察、刑警法医检查……不同领域

而我们上海峰志仪器有限公司研发的紫外线灯主要是被用做“脱脂清洗表面检查”“表面无损探伤”“泄露荧光检查”“刑警法医检查”“实验室动植物/半导体观察/检查”……了解更多关于上海峰志仪器有限公司紫外线灯,请咨询:13818683556.

验钞灯

LUV-4B battery operated, protable,mini uv lamp

  • Affordable  Competitively priced to offer the best value for your money.

  • Versatile  Ideal for countless applications.

  • Compact  Pocket-sized unit measures only 6.25 x 2 x 1" (16.215.9 x 5.5 x 2.5cm).

  • Portable   Conveniently transportable for on-site or field applications. Lightweight, transistorized unit provides 4 to 6 hours of use. Uses four 1.5V standard AA size batteries (not included). Handy nylon wrist strap provided.

  • Convenient  All units feature anti-slip, plastic screw for trouble-free tube changing. Sliding cover ensures easy battery replacement.

UV-4B Specification

Wavelength 365nm
Weight 7 ounces (198g)
Features Self-filtered, long-wave tube
Applications Counterfeit currency detection, quality control, mineralogy, antique/collectible examination, readmission control

 


This Model LUV-4B Mini UV lamp uses a 4-watt fluorescent tube with a wavelengthof 365nm. It is an excellent lamp for office or quick field inspection. Lamp islightweight and small enough to fit into a pocket. A nylon strap is attached foreasy handling. Operates on four AA batteries. Replacement 6" BLB type LW tubebulb is optionally available.


Applications Include...


LOCATE PET URINE SOURCES...
The amber-colored pet urine is composed of protein metabolism waste products,with feline diets typically protein richer than dogs. The urine will glow in thedark using a blacklight (longwave UV light). Since the UV light is relativelyweak, it works best to darken the room as much as possible.
Using lower wattage blacklights (4 watt) require being close to the inspectionarea with it as dark as possible.

FORGERY ANALYSIS
Forgeries of bank notes, standard checks and travellers' checks are mainlyprinted on inferior bleached paper or photocopied. Forgeries will glow under UVlight and bona fides will be completely dull. Many newer credit cards have aninvisible imprint on the front. American Express uses "AMEX". If no imprint, thecard is a forgery. Alterations of legal documents such as careful erasure or inkeradication and altering paper textures are detectable with UV light.

CURRENCY VERIFICATION
Authentic U.S. paper currency has embedded stripes which will fluoresce underultraviolet light as follows: $5 glows blue, $10 glows orange, $20 glows green,$50 glows yellow, and $100 glows red. The $1.00 bill has no stripe.

GEMSTONE and MINERAL INSPECTION
UV Light can react with the chemicals of a mineral specimen and cause it toglow, called fluorescence. Color and intensity of the fluorescence can identiftymany materials. Some minerals and gemstones have brilliant fluorescence underlongwave UV light.

ARSON DETECTION
In arson detection, accelerants' fluorescent glow is greater when exposed longerto heat. Their evidence is not always visible as they are absorbed by the firebut UV light can expose them.

Volatile hydrocarbons such as gasoline, grease, paints and others fluoresce whenexposed to UV, and can be seen as fragments of incendiary devices. Ambient lightmust be minimized for use of UV light at a fire scene.

CRIME SCENE INSPECTION
Illegal dumping can be tracked at night using UV light.
UV light is used to detect the presence of trace evidence in forensicinvestigations. Blood, urine, semen and saliva can present visible fluorescence.

ARTWORK INSPECTION
UV or black light reveals changes on the surface of objects as it causesspecific fluorescence in materials depending on composition and age. UVfluorescence can show overpainting or retouching and identify types of stains.

One can detect repair in paintings and rugs using UV light, as differences canbe seen between the chemical composition of newer inks, paints, and dyes andthat of the originals.

ADMISSION / ACCESS OR CROWD CONTROL
In high-patronage clubs, amusement parks and swimming pools, applying quickdrying readmission inks can be read easily by UV light. For beverage control, aportable, small UV light can slip in a pocket.

 

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