MR76 77GHz MMW Radar User Manual
MR76(v1.1)2020-3-10
Hunan Nanoradar Science and Technology Co., Ltd
17
negative influence on persons.
5.1 Electrostatic protection measures
It is necessary to fully perform static protection work during the process of radar transportation, storage,
work and pick-and-place. When dealing with independent radar equipment, users must pay attention to
below advice: when the radar is taken out of the sealed anti-static packaging, it is necessary to start
electrostatic protection work; never touch or grab the radar antenna surface and connector pins, only
touch Its corners.
Please wear anti-static gloves when handling all radar sensors.
Wrong Operation
Wrap the antenna with metal foil or some metal parts;
directly measure the pin with a multimeter, causing damage;
Spray the antenna structure with any type of paint or varnish;
Wrap the antenna with CFK sheet (conductive);
The plastic material is in direct contact with the corroded antenna structure (the effect of dielectric
constant on the resonant frequency of the patch).
5.2 Identify electrostatic damage
In general, the following two conditions indicate that the module has suffered electrostatic damage:
When there is no target object in the radar detection coverage, the radar continuously outputs an
irregular target;
When the DC parameter values such as power supply voltage and power supply current are within
the normal range, the signal cannot be output.
5.3 Power protection
The radar input voltage range is 6~32V DC, and the ripple is less than 20mV. A large ripple power
supply will cause the radar to continuously output incorrect target information.
5.4 Space electromagnetic interference protection
The product has adopted shielding measures to minimize the adverse effects of electromagnetic
interference in space. However, the radar still needs to be away from electromagnetic interference
sources such as motors and isolated metal casings during installation.