LDR25 Laser Ranging Target Indicator ERDI TECH LTD
LDR25 Laser Ranging Target Indicator ERDI TECH LTD
LDR25 Laser Ranging Target Indicator ERDI TECH LTD
LDR25 Laser Ranging Target Indicator ERDI TECH LTD
LDR25 Laser Ranging Target Indicator ERDI TECH LTD
LDR25 Laser Ranging Target Indicator ERDI TECH LTD

Laser Ranging Target Indicator LDR25

$25,000.00 $22,000.00 SAVE 12%
SKU: LDR25
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Description

DESCRIPTION

The LDR25 Laser Ranging Target Indicator  is a precision photoelectric product that emits laser light at a specific  target and calculates distance information based on the laser's flight time.  The Laser Ranging Target Indicator  realizes communication through RS422 communication interface,  and has the characteristics of outstanding performance and simple operation.  It has the following advantages in a wide  range of application scenarios:  small size, light weight, and low power consumption, suitable for handheld, airborne,  and vehicle-mounted platforms.  The Laser Ranging Target Indicator is 1064nm.  Direct human eyes are prohibited.  It is  a precision photoelectric product that fires a laser at a specific target and calculates distance information based on  the flight time of the laser.  The Laser Ranging Target Indicator realizes communication through RS422 communication  interface,  and has the characteristics of outstanding performance and simple operation.  It has the following advantages in a wide  range of application scenarios:  small size, light weight, and low power consumption, suitable for handheld, airborne,  and vehicle-mounted platforms.  The Laser Ranging Target Indicator is 1064nm.  Direct human eyes are prohibited.

FUNCTIN

  • With laser ranging function;
  • Provide target laser irradiation;
  • Respond to the laser ranging command and can stop the ranging at any time according to the stop command;
  • During ranging, each pulse outputs distance data and status information;
  • Ranging has distance gating function;
  • If no stop command is received after starting continuous ranging, ranging will automatically stop after 5min (1Hz)/1min (5Hz);
  • Can set the illumination mode and encoding;
  • Response to the laser irradiation command, follow the set mode, code, and irradiation, and can stop irradiation at any time according to the stop command;
  • If no stop command is received after starting the irradiation, the irradiation will stop automatically after one cycle;
  • During laser irradiation, each pulse outputs a distance value and status information;
  • Power-on self-test and periodic self-test and output status information;
  • Respond to the startup self-test command and output status information;
  • Able to report the cumulative number of laser pulses; laser pulse counting function
  • First and last target ranging function.

TECHNICAL PARAMETERS

Laser wavelength

1.064μm

Pulse average energy

≥25mJ

Pulse capacity fluctuation

within a cycle, adjacent pulse fluctuation ≤8%(statistics after 2 seconds of light output)

Laser beam dispersion Angle

≤0.5mrad

Laser optical axis stability

≤0.05mrad

Pulse width

≤20ns

Power-on preparation time

≤3s

Ranging frequency

Single, 1Hz, 5Hz, 20Hz

Continuous ranging time

5min(1Hz), 1min(5Hz)

5Hz  maximum continuous operating time

2min

Minimum range

≤100m

Typical ranging capacity

5000m

Ranging accuracy

±2m

Accurate measurement rate

≥ 98%

Ranging logic

first and last target

Irradiation distance

≥2km

Irradiation frequency

fundamental frequency 20Hz

Coding

in line with system requirements; With the ability to customize coding extension

Encoding mode

precise frequency code

Encoding accuracy

≤±2.5μs

Irradiation mode

one irradiation time ≥20s, start irradiation again, interval ≤15s, can be continuously irradiated for 8 cycles

Weight

440g

Size

≤91mm×68mm×51.5mm

Voltage

18V ~ 32V

Standby power consumption

≤4W

Average power consumption

≤50W

Peak power consumption

≤90W

1Working band

The central wavelength of the laser when the LDR25 is working is 1064nm. It is forbidden to look directly at the laser of the light detector when it is working to avoid unnecessary personal injury.

2. Ranging capability

In an environment with visibility ≥ 8Km and humidity ≤ 60%, when testing a target plate (or other equivalent target) with a reflectance of 0.3 in size 2.3m×2.3m, the distance measuring capability of the laser photometer can reach more than 5000m, and The accuracy rate is greater than 98%, which is also a key indicator for judging whether the laser detector is qualified. the relationship between laser range and visibility under theoretical conditions.

Factors such as target reflectivity and measurement angle will affect the ranging capability. Generally, the higher the target reflectivity, the better the ranging ability; the more vertical the laser angle is when it irradiates the measurement target reflective surface, the better the ranging ability. In practical applications, the laser of the illumination detector should be irradiated vertically to the target surface as much as possible. For targets with medium and high reflectivity, such as traffic signs and other targets, the performance of the illumination detector can also be better.
3. Ranging blind area

For targets within 100m, the laser photometer may not be able to accurately measure, which is its ranging blind spot. It is not recommended that users test targets in the blind area of the illumination detector because the echo of the illumination detector to targets in the blind area is strong, which may result in reduced detector life or ranging capabilities, especially for targets in the blind area. High reflectivity target testing may even cause permanent damage to the detector. Therefore, when the photometer is under close working conditions such as debugging, please block the receiving lens.

4. Distance measurement accuracy

For targets with an accuracy rate of ≥98%, the accuracy error of the laser photometer can reach within 2m. For example, for a target with an actual distance of 1000m, the maximum range of the measurement value of the laser photometer will be within 998m and 1002m.

5. Working frequency

The laser photometer can achieve single, 1Hz, 5Hz ranging and 20Hz irradiation by sending different instructions. For the corresponding instructions and operation instructions, see 3 Functions and Operations.

6. Weight

The total weight of the laser photometer is ≤440g.

7. Overall dimensions

91mm×68mm×51.5mm is the maximum size of the laser photometer.

8. Power supply voltage

The power supply voltage of the photometer ranges from 18V to 32V.

9. Environmental adaptability

The photometer can operate normally under the conditions of -40℃~60℃, and the storage temperature range is -55℃~70℃. It is recommended to work or store the photometer in a normal temperature and dry environment. Too high or too low temperature may cause the decline of certain indicators of the photometer. In particular, avoid using the photometer in an environment with drastic changes in temperature. , which may reduce the life of the photometer or cause malfunction.

10. Average energy

The average energy irradiated by the laser photometer is ≥25mJ.

11. Energy stability

Within one cycle, the fluctuation of adjacent pulses is ≤8% (statistics after 2 seconds of light emission).

12Divergence angle

The laser beam divergence angle of the laser photometer is ≤0.5mrad.

13Pulse width

The light pulse width of the laser photometer is 15±5ns.

14Irradiation distance

When the laser photometer executes the irradiation instruction, the longest distance it can irradiate is ≥ 2500m (reference value).

15Coding method

The laser photometer has user-defined coding expansion capabilities; the coding method of the laser photometer is precise frequency coding and external synchronization; the coding setting is 8 fixed codes + 8 expansion codes (the fixed code cannot be changed after being customized by the user, and the expansion code Users can set it by themselves, but it should not exceed 22Hz).

STRUCTURAL DRAWING(In mm)

The laser photometer is connected through screws, and the location of the mechanical and optical interfaces is shown in Figure 2.

ELECTRICAL INTERFACE

The upper computer end is cross-linked with the female connector MOLEX 53048-0810 and the female connector MOLEX 530480210 by the connector plug MOLEX 51021-0800 and the connector plug MOLEX 151340201, respectively. The power supply and communication port pin definitions of the camera end are shown in Table 1 (receiving and sending relative to the camera).

Socket MOLEX 53048-0810

Corresponding plug MOLEX 51021-0800

Pin number

Signal name

Instructions

1

24V

Power+

2

24V

Power+

3

24VGND

Power supply-

4

24VGND

Power supply-

5

422_A

Host computer->laser measurement component+

6

422_B

Host computer->laser measurement component-

7

422_Z

Laser measurement components->Host computer-

8

422_Y

Laser measurement components->PC+

Socket MOLEX 530480210

Corresponding plug MOLEX 151340201

Pin number

Signal name

Instructions

1

SYNC_IN+

The external synchronization signal is a differential signal, and the interface type is RS422

2

SYNC_IN-