Technical Specifications

Electronic block for Fuze Time and PD with inductive setting and battery

                                             for 155mm Gun Ammunition

                                                       Φ25mm H- 15mm

 Design guidelines  MIL-STD-1316D, STANAG 4187 and MIL-STD-331B

Dimensions including battery Φ25mm H- 15mm

Total Weight 

40 g

Built-in battery

15 years warrantee MIL-STD 810G 10 g weight Operating temperature range. -40 °C ÷ +85 °C Storage temperature range -55 °C ÷ +85 °C Oven at +150 °C Acceleration 50,000 gn Spinning 30,000 rpm 

Option – other Power source (fan) 

4V – 30V 

Consumption in active mode

0.02 mW

Remote inductive programming

from 10 cm 

Built-in 3D accelerometer Output data rate Sensitivity Clock frequenc

100/200 or 300 g, 400Hz, 780 mg/digit 400 KHz

Dual safety for STANAG 4187 compliance

Built-in 2nd safety acetometer mechanical key > 20 g

Number of inputs

1 

Output 1

Fuze activation at safety barrel distance (programmable) 

Output 2 

Burst

Maximum output current

3.5 A @ 3.5V 

Number of Timers

8

Set time

± 0.01 sec

Time accuracy

± 4 nano sec

Max Time

200 sec

Fuze Arming Time

Programmable. Should not be armed before 1,5 sec from launch time.

Fuze Safety Distance

Programmable

PD back up

In case of failure of Proximity 

Timer Fire support mode

Regular artillery Mortar bombs 80mm, 120mm 122mm Grad missiles Ship artillery - shore bombardment Airburst Anty Aircraft 

OPERATING MODES

Point Detonating SQ mode (electronic) · Timer burst after a preset time period · Timer burst at preset time period AFTER the maximum height is reached (top of the trajectory). · Timer burst at preset height (the 3D accelerometer determines the trajectory) Airburst mode with in real time inductive fuze setting(optional)

Integration of all functions in a standard fuze volume

  • Programming coil, 
  • Battery,
  • Signal processing and power supply
  • Programming and fuzing electronics, 
  • IM S&A Unit
  • IM explosive train

Option to use Li-Ion battery, Supercapacitor, thermal battery, fan, piezo.

Possibility to program other functions of inputs and outputs.

S.No Parameter Details

         a) 

Caliber

For 155mm Ammunition fuzes

 b)

Type

Electronic Fuze, Time and PD Type with Inductive setting/NFC option

 c)

Description

The Fuze have two modes of operation: · Activation after a preset time period · Point Detonating Super Quick (PDSQ). (electronic) · Activation at preset time period AFTER the maximum height is reached (top of the trajectory zero g). · Activation at preset height (the 3D accelerometer determines the trajectory). Fuze functioning can be selected by inductive Fuze Setter. The Fuze have a PD back up in case of failure of Time .Function

 d)

Fitment of the Fuze 

Φ25mm H- 15mm

 e)

Fuze Arming Time

Programmable. Should not be armed before 1,5sec from launch time. Programmable

 f)

Fuze Safety Distance 

Programmable. Set for min meters from Muzzle End

 g)

Time to Burst 

Set time ± 0.01 sec

 h)

Velocity and Pressure

The Fuze is safe for use in the Muzzle Velocity Range of 180 to 1000 m/s and have capacity to withstand Chamber Pressure up to 397±8 MPa

 j) 

Functional Reliability

a) Functional reliability of at least 99% in Time Mode and 99% in PD mode

b) There should be no deterioration in reliability during extended storage under field conditions

 k)

Shelf Life

a) Minimum 15 years under storage conditions during peace time

b) Literature substantiating the claim that explosive filling would give stipulated shelf life needs to be made available

 l)

Environmental Conditions 

Minimum Temperature for use 

-40 0C

Maximum Temperature for use

#ERROR!

Minimum Temperature for storage

-50 0C

Maximum Temperature for storage

#ERROR!

Maximum Relative Humidity

0,95

 m)

Safety

a) The Fuze design complies with the design safety requirements, objectives and design guidelines as established by MIL-STD-1316D and STANAG 4187

b) The Fuze will be safe to transport, handle with dispose off after a 12 meter drop as per MIL-STD-331B, Test A3

c) The Fuze will be safe to transport and handle and fire but may not be operable after being subjected to the Jumble Test as per MIL-STD-331B, Test A1

d) The Fuze will be safe to transport and handle and fire but may not be operable after being subjected to the Jumble Test as per MIL-STD-331B, Test A2

 

 n)

Para Droppability

The fuze must be safe during and after a Para Drop

 o)

Bore and Muzzle Safety

The fuze should be safe in bore and withstand the shock of discharge

 p)

Spare Tools and Accessories

Inductive Fuze Setter for setting the Fuze Mode and other parameters is provided