Data Sheet

The operating temperature range of PK-1000 is from -40℃ to +85℃, this performance
is guaranteed by TCXO (Temperature Controlled Crystal Oscillator).
2. Software
2.1 Software of the microcontroller
2.1.1 Distance measurement
2.1.1.1 Theory of distance measurement
The theory of PK-100 measuring distance is:
Distance = Vl * Ttof
(Vl is the velocity of light, Ttof is the duration of electromagnetic wave transmission)
In order to restrain the influence of crystal oscillator deviation on Ttof, PK-1000 is
using Symmetric double-sided two-way ranging (SDSTWR) method, as illustrated in
Figure7:
2.1.1.2 Measurement systems
PK-1000 supports 3 different distance measurement systems, all of which are based on
UWB TOF method. You can choose among these systems according to your own
application scenario.
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