Second Delay

In addition to the momentary surge created by energizing the power source, the mechanical action of placing the transducer on the machine creates a spike of energy that may distort the vibration profile. Therefore, the actual data-acquisition sequence should include a ten- to twenty-second delay to permit decay of the spike created by mounting the transducer. 

In the first case, the 180° pulse is applied to nucleus X, causing the two vectors of nucleus X to flip across the x -axis. But no change occurs in the direction of their rotation during the second delay period, so at the end of this period the vectors are refocused along the —y -axis, producing a negative signal. 

Addition of acetone, ammonia, aniline or diphenylamine to the oxidant causes, after a few seconds delay, a rapid reaction accompanied by smoke and flame. 

The fully decoupled C-NMR spectrum of aspirin in CD3OD (200 mg/ml) is shown in Figure 5. The spectrum was obtained on a Varian XL-100-15 NMR spectrometer equipped with a Transform Technology TT-100 FT data system. The data represent the transformation of a 400 pulse FID obtained using 4096 data points with a 15 second delay time between accumulations.33 Peaks a-i (Figure 5) arise from the nine carbons of aspirin. The seven peak multiplet centered at 6=49.0 ppm... 

Burning Millimeters/ second Delay mixtures, colored smoke composition... 

Friction Detonator, 15 Second Delay, Ml (Fig 68) is almost identical to the 8-sec delay detonator in overall appearance and functioning, except that its pull ring is circular and the powder-delay train is of 15-sec duration. (Ref 30a, pp 49-50 and Ref 32b, pp 126-27)... 

Percussion Detonator, 15-Second Delay, M1A2 (MlEl) (Fig 69) consists of a firing pin assembly joined to a delay housing and percussion primer holding assembly (Ref 53, pp 35 37, Fig 31)... 

Fig 69 PERCUSSION DETONATOR MlA2 (M1E1) 15 -second Delay... 

Another delay element is shown in Fig 5-45 of Ref 23 (See our Fig 1-58). It is assembled within a single housing as an integral part of Stab Initiated 0.02 Second Delay Detonator. Compositions of primer, igniter, delay, intermediate and base charges are listed in our Fig 1-58. The detonators shown in Figs 1-57 and 1-58 were developed under Army auspices and investigated at Picatinny Arsenal [See PATR 1657 (1947)] (Ref 23, pp 5-59 5-60)... 

Photoflash Cartridges, M112A1 (l, 2 or 4-Second Delays) Each consists of a cylindrical A1 container (1.57-inches in diam 7.73-in long), filled with photoflash powder (7. 0-oz), a delay fuse contg gasless Ba chromate boron compn and an electric... 

Nose Fuze for Type 3 Bomb A-6(a) (pp 129-31) Nose Fuze for Type 3 Bomb A-6(b) (pp 131-32) Nose Fuze for Type 2 Bomb A-7(a) (pp 132-33) Type 4 Two-Second Delay Nose Fuze A-8(a) (PP 134-35)... 

Type 4 Two-Second Delay Nose Fuze for Large Bombs A-8(b) (pp 135-36)... 

Type 12-Year Tail Fuze B-l(a) (pp 137-38) Type 1, 15-Second Delay Tail Fuze B-l(b)... 

Fig 5-44 (Flame initiated 0.10-second flash detonator) 5-60, Fig 5-45 (Stab initiated 0.02-second delay detonator) Chapter 6, pp 6-1 to 6-11, Characteristics of Leads"... 

Japanese Army Tail Bomb Fuzes, pp 137-44 151-53 [Type 12-Year instantaneous fuze B-l(a), Type 1 15-second delay fuze B-l(b), Type 92 instantaneous fuze B-4(a), Types B-5(a), B-7(a) and B-8(a)]... 

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