The new special spike outdoor camping equipment supplies Compass lens free shipping promotion | Спорт и развлечения

The new special spike outdoor camping equipment supplies Compass lens free shipping promotion | Спорт и развлечения

The compass north produced a professional to do that instrument factory, high quality compass quality and the market in general .

[Material][Name]Compass / compass
[Material] Zinc alloy casing, damping dial , ABS disk , copper, etc.
[Specification] 16 * 5.8 * 1.9mm ( expanded longest , highest , widest point ), 7.6 * 5.5 * 2.5cm ( foldedThe longest , highest , widest point)
[Color] dark green
[Packaging] box

American compass features: refers to the North , orientation , location, distance , measured slope ( pitch angle ) , the measured azimuth, mapping ruler , magnifying glass , etc. ;
Zinc alloy shell : the average thickness of 2 mm , durable ; foldable , compact , easy to carry ;
Damping Dial: Pointer favor stability , more suitable for sports , rugged environment (point to slowly turn , not insensitive ) ;
Dial: scale accurate, clear , 360 -degree azimuth angle inner partition, the outer ring of 64-00 mils system partition, dial with a magnifying glass , you can more clearly see the scale ;
1: 25000coordinates foot ladder : easy to measure the distance between two points on the map , but also a powerful tool for the geometric method Figure operations ;
The arrow indicates the N pole ( Arctic ) : the vast majority of the compass labeling method ;
mention the ring : You can plug lanyard, in case of need to use both hands frequently has been occupied or can be hung on the neck to get a place readily available.

Comments [ treasurer ]
This is a fake American compass, its excellent performance , low prices at home and abroad who love outdoor sports which have a rich American ** compass compass features, the use of oil -in dial ( Table Note there is resistance in the mud liquid )Rugged and volume applicable in clever, easy to carry. High precision, foldable portable, durable metal casing diameter of about 45 mm dial , you can turn on the magnifier , dial scale accurate , legible and also designed with a safety clasp to prevent himself open after closing the compass .

- , Uses
June 5 -in compass is the determination of position, distance , level , slope ( pitch angle ) , height, speed, and the march of time mapping a simple map of a simple measuring equipment , for ease of use at night , in their respective parts coated with luminous powder.

Second, the structure is simple introduction:
Instrument is mainly composed of the compass , odometer two parts, such as ( Figure 1 ) . Compass section has put the ring ( 1 ) , of the disc holder ( 2 ) , the seat of the dial plan has two engraved lines , the outer ring is 360 degrees partition system, each engraved lines for a degree . Inner 6000 ( mil ) partition system, a total circumference of 300 engraved engraved lines, each line is 20 reticle ( mil ) . There are needle ( 3 ) , goniometer ( 4 ) , the pitch angle of the division in degrees , 2.5 degrees per engraved lines , measure the angle of ± 60 ° tilt . Odometer mileage mainly by partition table , speed schedule ( 8 ) , measuring wheel ( 9 ) , gears, pointers and other components. There is a division mileage : 50000 : 100000 two kinds of scale -scale value . 1: 100,000 scale engraved lines corresponding representative per 1 km , 1: 50 000 representatives of each groove corresponding to 0.5 km , with a map with the corresponding proportion or percentage multiplied with the use . Speed timetable division : There 13,15,17,19,21,23,25 km / h on the outside of the dial , there are 10,14,16 , 18,20,22,24,30 km / h on the inside of the dial ( with v representative) , a total of fifteen kinds of speed. Every moment in time scale corresponding line on behalf of five minutes (V25 for 10 minutes ) .
Surveying the side instrument feet, both ends of the device from the assessment . Assessed is two 12.3 mm edge length , sight and front sight between the length of 123 mm , that is the tip of a long 10 -fold.

Third, the use
( A ) determination of position :

1 . Situ determination of the direction of the truck
( 1 ) Open the compass ! So that the orientation index \"\" alignment \"0\" ;
( 2 ) Turn the compass until the needle refers to the northern end of the alignment , \" 0 \", the direction of this case is referred to the north, in the direction of glass can be read directly appear to the east, south , west and north .

2 , the calibration of the figure ten thousand
Calibration map orientation is the use of the compass so that the orientation on the map and now local bit the same.
( 1 ) Open the instrument , adjust the dial seat , so that the orientation index \"\" alignment \"0\" ;
( 2 ) to the mapping scale and true meridian on the map tangent ;
( 3 ) Turn the map so that the needle on the northernmost point of the magnetic declination value in the region , where the orientation and position on the map is now exactly the same .

3 , measuring magnetic azimuth
A, the measurement target magnetic azimuth FIG.
( A ) accurate calibration map with compass and keep the map does not move ;
( 2 ) the mapping scale and connection point and the target point where the tangent , seat adjustment dial that indicators \"\" alignment \"0\" scribed lines ;
( 3 ) After the needle is stationary, meaning its northern end of the scale is the seat of the plate to the point where the magnetic azimuth value of the target point .
B, measured magnetic azimuth situ target
( 1 ) Open the instrument , so that the orientation index \"\" alignment \"0\" , and the mirror and dial seat slightly into the 45 °;
( 2 ) put the ring with the thumb penetration , flat holding instruments, aiming to be measured by sight by sight to the target ;
( 3 ) watch from the northern tip of the needle in the dial seat mirrors are aligned with the sub- program, is now the target of a magnetic azimuth values.

(B ) measuring the distance

1, with direct volume rendering of Surveying and Mapping foot distance

2, with mileage distance measurement in image
( 1\u003e The first red pointer return \" 0\" ;
( 2 ) flat holding the instrument , the measuring wheel odometer light on the starting point , scroll to the end of the amount of forward along the route ;
( 3 ) referred to in accordance with the pointer on the scale engraved lines , can be read directly from the corresponding field . For example, in 1: 50 000 map from A to Point B the amount of points, the instrument dial l; 50000 scale means that 14 engraved lines , the distance between two points A and B on the ground for seven kilometers . Who in l: volume was 14 engraved line on 100 000 map , the distance between two points A and B is 14 km . In addition, there is a corresponding proportion ( eg 1 : 25,000 ) or double the proportion ( eg 1 : 20,000 and l:500000) The map can also be read by the conversion of the amount .

3 is a schematic assessed by measuring the distance to the target distance now .The instrument from the assessment unit interval between two sophisticated sighting and sight distance l / 10, the relationship between the use of similar triangles , distance to the target can be determined now .

(L) the known two targets ( objects ) and where the distance , seeking interval these two targets (objects ) between available the following formula:
The interval between the two target = distance between the target and the standing point between × 1/10
Turn on the instrument , with the eye close to the sighting , targeting , such as the two target ( object ) from the assessment is just as sophisticated as the two caught ( eg Figure 2 ) , and is known and where the distance between the target point between points of 100 meters , the interval between two target points for 100x1 / 10 = 10 meters and the rest can be calculated in this way .
In addition , the interval ( object \u003e between the front two goals are not necessarily exactly the distance is assessed by two cutting-edge grip, while kid or greater than the interval , can be used the following formula:
Interval between two target points = the distance between the point where the two goals and the x1 / 10 x two- goal percentage in multiples of two cutting-edge interval.

Example : Two known distance between the target and the stand point of 100 m , the measured interval is the distance between the two objectives is assessed both cutting-edge spacing 7/10 interval between the two goals for the 100 × 1/10 × 7 / 10 = 7 m . Similarly, if the interval between two targets assessed 1.5 times the distance of two cutting-edge interval is the interval between the two targets for 100x1 / 10x1.5 = 15 m.

( 2 ) the interval between the known object width or two goals , find the point where the distance between the target and calculates available the following formula:
The distance between the target and the standing point : Known target interval × 10
Example : Given the interval between the front c target is 12 meters from the assessment is exactly the sight of two cutting-edge , the distance between the target point and the stand point of 12 × 10 = 120 m.
Furthermore, the known target interval , but in the target, is less than or greater than the distance between the two tip is assessed at intervals , the following equation can be used :
And the location of the target distance = ( actual interval x10 target) / target multiple accounts is assessed spacing distance between the two tips
NOTE : The method is assessed by measuring the distance to the target distance is now easy , but accuracy is not high .

( C) the march of time and speed calculation
Schedule with the speed on the instrument , while the amount of mileage , the measurement time can be required for marching or within a predetermined time marching speeds , as follows:
l march time calculation : open the instrument , so odometer pointer to zero ( the red line on the dial ) . At the same time obtaining the destination of mileage , the speed schedule will be in accordance l: 100000 dimensions mileage, noted by 13 , 15,17,19,21,23,25 km / h ( the outer table , reading clockwise ) and 10 , 14,16,18,20,22,24,30 km / h ( the sorrowful table , counterclockwise reading ) speed march all the time needed , if it is on a scale map of the amount l:50000 get mileage , then use your fingers light by measuring wheel , so mileage halved, speed and time indicated by the pointer is ask . For example: 1: 50 000 scale drawing was a distance of 40 kilometers an amount , if the speed of the whole journey by v20 , find the desired time. First, the pointer dial to 1: 50,000 scale at 20 km in v20 circle pointer is ask . If the predetermined speed is the speed of the table is not shown , identify the relationship between the ratio of the speed ratio obtained by multiplying the time . Such as the march of five kilometers per hour , the amount of mileage of 30 km was seeking time , you can read : v10 for three hours , due to v10 v5 is about 2 times thanks to multiply two or dial pointer measuring wheel to 60 km reading v10 was 6 hours , Again v6 , the readable v18, will take three or dial measure thanks to the pointer indicates the 90 km round at reading v18 was five hours , I analogy .
( Note: The above calculations do not include the marching body interest rates, amount of time to adjust and road slope and bending coefficient, etc. , in the organization of the march , should be added to the relevant data on the table. )

2 march speed calculations, determined to reach the destination at the same mileage , upon request, to reach the time limit , the speed can be calculated according to the time table to select the appropriate speed within the prescribed time limit ( note : if it is 1: 50 000 scale mileage requirements should doubling time selection ) as the marching speed.

( Note: When seeking the march speed while adding the appropriate data about the march further calculations. )


( D) determination of the slope ( pitch angle ) slope
Turn on the instrument , the mirror and the seat slightly dial at 45 degrees , the side holding the instrument , along the sighting , the beveled edge Huai star sighting, and the line of sight is parallel with the slope , so goniometer swing freely , watching from the mirror goniometer central engraved lines on the scale indicates the pitch angle of the table partition, is the demand of the pitch angle ( slope ) .

(E ) measuring the height of the target outline
Level ( object ) and where the distance between the points of known targets , the first target of the pitch angle measurement , and then check the altimeter ( see Table 1 ) , you can know the height of the target , which is as follows:
1 . Maps on song from the assessment is determined by the point where the target to be measured (eg Peak, chimneys, spiers , etc. ) or horizontal distance ;
2 . Measuring instrument holders , along sighting , targeting the top of the front sight of the goal , let goniometer swing freely to a stop , to see the pitch angle goniometer engraved lines indicated value ;
3 . View altimeter ( Table 1 ) or can be calculated using the formula secret bits that height.
Example : Known measuring point to the measured object horizontal distance of 100 meters , instruments measured elevation angle of 30 °, and then check the altimeter , at 100 m horizontal grid alignment 30 ° vertical grid, Richard measured height of 57.74 meters .

Fourth, equipment maintenance and repair :
l. Do not place the instrument near ferromagnetic materials , in order to avoid loss of magnetism.
2 . Mapping object unavailable beat feet to avoid IMPACT measurement accuracy.
3 . Do not twist the mirror , so as not to affect the targeting reticle reading and watching the surface to keep clean , do not use a dirty cloth, hand to wipe .
4 , the instrument when not turned off, release the cartridge, be careful not to crash .