0 001 дюймов микрон индикаторы проверки шкалы с длинным точка соприкосновения
- Категория: Indicators >>>
- Поставщик: Guangzhou,Geodex,Instrument,Co.,Ltd
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Aug-17-2025 | 24.90 $* | 24.44 $* |
| Jul-17-2025 | 20.92 $* | 20.80 $* |
| Jun-17-2025 | 24.64 $* | 24.74 $* |
| May-17-2025 | 24.45 $* | 24.13 $* |
| Apr-17-2025 | 19.23 $* | 19.0 $* |
| Mar-17-2025 | 23.44 $* | 23.48 $* |
| Feb-17-2025 | 23.27 $* | 23.7 $* |
| Jan-17-2025 | 23.11 $* | 23.28 $* |
Характеристики
Feature Introduction
Type | Dial Indicator |
Range | 0-1′′ |
Manual | Manual |
Customized | Customized |
0.001′′ | 0.001′′ |
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Company Profile
We have 15 years experience in production
What we can provide?
1. 12 months after-sales service, but also professional surveying solutions and strong technical supports including maintenance & parts service
2. Fast delivery in seven days
3. The product is well-made, tightly packaged, and has amanual
4. 24-hour response, providing professional, efficient and friendly communication services
1. 12 months after-sales service, but also professional surveying solutions and strong technical supports including maintenance & parts service
2. Fast delivery in seven days
3. The product is well-made, tightly packaged, and has amanual
4. 24-hour response, providing professional, efficient and friendly communication services
About Us
With 15-year exporting experience in the geodetic industry, Geodex is one reliable expert & world-wide provider of Geographic Surveying & Mapping solutions. We have established a lot of good & long term partnerships in many different countries. Further more, we have received good reputation not only because of the high quality products, but also because of the professional technical supports & excellent customer-service.
Full range of geodetic surveying instruments which we have been specializing includes Drone UAV, RTK GPS/GNSS Surveying System, handheld GPS/GNSS, Total Station, theodolite, automatic levels, digital level, laser level and Surveying Prisms, Surveying Accessories ect.
Our products are widely used for high precision measurement, surveying & mapping works, such as land & housing management, building, road, railway & city infrastructure construction, Topographic, Cadastral, monitoring and mining, hydro & marine surveying projects.
We sincerely welcome your cooperation!
About Technical Supports
1. We provide not only high cost-efficiency surveying instruments.
2. but also professional surveying solutions and strong technical supports including maintenance & parts service.
3. Make sure Quality Verified & recalibrated before each shipment.
4. Fast Delivery, stocked in Guangzhou.
5. Professional Export & Import Service.
6. One-year warranty period of surveying equipments.
Contact Information
Guangzhou Geodex Instrument Co., Ltd.
Phone: 0086-139-2957-9611 (WhatsApp/Wechat)
Tel: +86 (0)20-8251 6799
E-mail: sale@geodexdata.com & export@geoland.cn
Website: http://www.geoland.cn http://www.geodexinstrument.com
Add: 410, No. 7 Minxing Street, Huangpu District, Guangzhou, 510530, Guangdong, China
Full range of geodetic surveying instruments which we have been specializing includes Drone UAV, RTK GPS/GNSS Surveying System, handheld GPS/GNSS, Total Station, theodolite, automatic levels, digital level, laser level and Surveying Prisms, Surveying Accessories ect.
Our products are widely used for high precision measurement, surveying & mapping works, such as land & housing management, building, road, railway & city infrastructure construction, Topographic, Cadastral, monitoring and mining, hydro & marine surveying projects.
We sincerely welcome your cooperation!
About Technical Supports
1. We provide not only high cost-efficiency surveying instruments.
2. but also professional surveying solutions and strong technical supports including maintenance & parts service.
3. Make sure Quality Verified & recalibrated before each shipment.
4. Fast Delivery, stocked in Guangzhou.
5. Professional Export & Import Service.
6. One-year warranty period of surveying equipments.
Contact Information
Guangzhou Geodex Instrument Co., Ltd.
Phone: 0086-139-2957-9611 (WhatsApp/Wechat)
Tel: +86 (0)20-8251 6799
E-mail: sale@geodexdata.com & export@geoland.cn
Website: http://www.geoland.cn http://www.geodexinstrument.com
Add: 410, No. 7 Minxing Street, Huangpu District, Guangzhou, 510530, Guangdong, China
Surveying Prism FAQ
Retro-reflectors (or corner cube prisms) used with electronic distance measuring (EDM) instruments have an offset because the transmitted light beam from the EDM takes longer to enter and exit the prism. This longer time translates to a longer distance measured. This distance is corrected by using an 'offset' and positioning the prism in relationship to the plumb line of the prism holder. The offset is determined by multiplying the height of the prism by the refractive index of the glass used. Common offsets are 0, -17.5 mm, -30 mm, -34 mm, and -40 mm.
Prism Range
Corner cube prisms or retro-reflectors redirect the measuring beam back to the EDM for signal processing. There are two main factors for good range measurement: prism diameter and beam deviation. If the beam deviation is not accurate enough, the returned beam will miss the EDM entirely. This occurs mainly near the maximum range of the EDM (check with your manufacturer). GEODEX standard prisms are <5 seconds.
Prism Holder Accuracy
Prism accuracy is determined by the physical location of the prism in its canister and then to its holder. GEODEX prism accuracy is 1 mm or less.
GEODEX uses a ZYGO GPI-XP/D interferometer to test and confirm the beam deviation of prisms to ensure that they meet specifications. Certificates of compliance are available upon request.
GEODEX uses a ZYGO GPI-XP/D interferometer to test and confirm the beam deviation of prisms to ensure that they meet specifications. Certificates of compliance are available upon request.
A nodal offset is defined by the relationship of the prism holder and prism that places the optical center of the prism on the plumb line of the holder. This offset is the most advantageous at close range work when the apex or center of the prism is used as a pointing target for vertical and horizontal angle measurement. Every prism has a nodal offset. Prisms and holders that are not in the nodal position, however, can cause angular errors when using the prism apex as a target if it is not perfectly pointed toward the measuring instrument.
To reduce pointing errors, several GEODEX prism assemblies are designed with a nodal point alignment at -17.5 (for 25 mm prisms) or -40 mm offset (for 62 mm prisms). See illustration at right.
Commonly, the best reading of the beam is achieved when the prism face is perpendicular to the incoming beam for a parallel return. Unfortunately, ideal alignment is not always achieved in the field.
To compensate for pointing errors, nodal point alignment minimizes the error associated with misalignments (two illustrations below).
Commonly, the best reading of the beam is achieved when the prism face is perpendicular to the incoming beam for a parallel return. Unfortunately, ideal alignment is not always achieved in the field.
To compensate for pointing errors, nodal point alignment minimizes the error associated with misalignments (two illustrations below).
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