Good Mapor Ruler Mini-Compass DC45-W for Surveying
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 pc
- Supply Capability:
- 10000 pc/month
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Model: DC45-5W
Name: Professional map compass, ruler compass
Product Origin: China
Supply Ability: 10,000 pcs/month
Minimum Order: 20 pcs
MOQ for OEM package: 500pcs
Product Size: 114*60.5*167(mm)
Features of DC45-5W
1, professional usage: orientation, distance measuring, measuring slope, azimuth and pitching Angle measurement, drawing, a magnifying glass
2, high quality compass with neck rope, portable and rugged
3, ACRYLIC material, about 2mm thick
4, Damping Dial: to keep the stability of the pointer, more suitable for outdoor environment.
5, Accuracy: accurate and clear, there were 360 degrees azimuth Angle, outer ring is 64-00 system, Liquid filled in the compass for reliable readings.
6, Magnifier function
5,ruler compass,
6,for map measure and drawing
7,one meter neck rope,
8,Liquid filled in the compass for reliable readings,
9, magnifier function.
- Q:What do you need to test for GPS?
- As a high-tech product, GPS has a very complex technical parameters. However, as people's living standards improved rapidly, more and more ordinary people began to pay attention to the positioning and navigation tools originated from the military. Because the convenience it brings is unprecedented. In order to let everyone out of all the technical parameters of GPS receiver, no longer confused at the time of purchase, the author selected six of the most important technical indicators, one by one to explain to you. 1 parallel channels on the market most of the GPS receiver is a 8 channel, 12 channel, the 16 channel, which allows them to continuously track the information of each satellite. Some GPS devices only have 2 to 5 parallel channel receiving satellite signals, because the average of 8 satellites are visible, which means that the GPS receiver must visit each of the satellites in order to obtain information about each satellite. All of our products are in Shenzhen channel 16 channel, multi-channel parallel GPS receiver, including the advantages of rapid cold start and initialization of satellite information, but also in the forest area can have a better reception. General 12 channel receiver does not require an external antenna, unless you are in a bad environment conditions such as closed space, such as the cabin, the car. 2 the sensitivity of the GPS satellite signal to the ground has been very weak, as well as ground wireless communication clutter interference. The lowest traceable signal strength of the GPS receiver determines how much useful signal is received. A GPS receiver with a lower minimum tracking signal strength has a higher sensitivity, and can receive more available satellites under bad conditions
- Q:Handheld GPS buried in the soil there is a signal
- It depends on how deep you buried the darker the GPS signal, and must ensure that the GPS antenna upward, the above can not be covered with metal objects
- Q:I am a handheld GPS precision is low, how to use to be able to improve certain accuracy.
- If the carrier phase measurement function is not available, you have the maximum accuracy of GPS accuracy of 1-10This can only improve the observation environment using SBAS and other ways to improve the accuracy
- Q:What is the difference between industrial GPS handset and mobile navigation
- 3, professional handheld machine with industrial design. First of all, if used outdoors, then fell, and so on are likely to water, and this thing is also very expensive, so the opportunity to have a high professional anti shock waterproof performance.4, different screen design. If you look carefully, you can see in the outdoor light, mobile phone can not see the contents of the screen, while the professional handset is not the same, can see clearly in bright light, does not affect the work of foreign trade operations.
- Q:Handheld GPS each brand has what difference; different price difference in where is the positioning accuracy is different or what function is not the same?What are the differences between the measurements and the cars?
- Engage in measurement and what is the difference between the car I do not know, look at the car to see if the functionSMS + Mobile Internet + computer network platform! 3 ways to check the car!
- Q:Fuxin coordinates with the mapping of the seven parameters are what ah there is no professional knowledge to tell my brother I need to fill the gps... Thanks.
- Three translation parameters Delta X, Delta Y, Delta Z, three rotation parameter w X, Omega Y, Omega Z and a zoom M, these parameters need to be calculated in a fixed point under different ellipsoid!
- Q:What factors affect the handheld GPS receive signal?
- In addition to not see the sky (such as indoor, underground, dense forest) and narrow alleys and tall buildings on both sides of the environment, there will be no impact. Many GPS has 12 receivers (antenna unit), as long as it can capture 3 satellites can be three-dimensional positioning (including height), the 2 satellites can be flat positioning.
- Q:Highway measurement with GPS I do not know which of the base station settings and mobile station settings I are very vague, to the instrument to build a coordinate system how to build the relevant issues to me
- Defects of conventional measurement methods:1, the specification of the length of the attached wire, the length of the wire and the length of the wire between the nodes have strict requirements, generally for high grade roads are required to meet the requirements of the first line. In this way, the length of the wire shall not be more than 10 km, or the length of the wire shall not exceed the length of the wire attached to the attachment of the wire length of 0.7 times. This requirement is generally difficult to achieve in the actual work, often appear super standardized operations.2, to collect the starting point for the general route of measurement and control is difficult to ensure the same measurement system, the measurement and measurement, often in the city of control points mixed together, the compatibility between systems, if the starting point is not compatible, is bound to affect the quality of measurement.3, serious damage to the national site, the impact of measurement operations. Due to the country's basic control points, mostly completed in 50s and 60s, after more than 30 years, some point due to the needs of economic construction is destroyed, and some people because of the lack of knowledge of human destruction. Route survey work in these areas, often in the 50 km above all can not find the wire control points. The quality of the route control survey is not guaranteed.4, ground visibility difficulties often affect the implementation of conventional measurement. The control points of the general route shall be located within 300 meters from the course. Due to visibility reasons, it is difficult to meet the conditions, even in a large range, and the dense shrub forest area, simply can not implement conventional control measure.
- Q:Verify the accuracy of the GPS device to buy back, the way is to use Android under the'gps state 'software, to test the accuracy of real-time single point positioning.1 with two sets of the same Android Tablet Computer (custom machine, type of bad) in the same position for receiving, find that the accuracy is the same (software, are 1-2 meters), but the position would be poor 10 meters or more. It's in the same place.The 2 one is the Android tablet computer, a mobile phone is HTC G10, also received together in the same position, find that the accuracy is not the same as (the latter 20 meters or so), but also may be about 10 meters position difference.The accuracy of this GPS device can reach 1-2 meters, while the same location in real-time single point positioning error of 10 meters, a reasonable explanation.
- Oh the single point positioning accuracy is about 10 meters, but also have a great relationship with the environment around you, if in the city, the accuracy of twenty meters are possible, if the open place, outside. Ten meters should not be a problem. Whether you use a professional measurement RTK or ordinary navigation handheld machine, single point positioning accuracy can reach 1-2 meters of the machine I is not met, if you see where I wish to share with me, thank you. Can only say that the use of professional measurement RTK will certainly be higher than the navigation accuracy of GPS single point oh
- Q:Handheld GPS brand rankings
- Set of SIBAO products awarded the Beijing independent innovation product identification certificate, satellite navigation and Engineering Excellence Award and other professional awards. At the time, location, navigation and other comprehensive applications, Unistrong successful implementation of hundreds of large projects, services in many national key projects, won the national honor.
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Good Mapor Ruler Mini-Compass DC45-W for Surveying
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 pc
- Supply Capability:
- 10000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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